they're called torque to yield bolts. they are one use only bolts because they stretch, it's the same as the head bolts on my 1990 ford ranger, torque to 55ft LBS then turn 90 degrees after 5 minutes
Gday, that’s amazing there’s not gaskets and only relies on the sealant, I guess that’s a cheaper option and the sealant that you get now is higher quality, just thinking out loud there, the engine and gearbox looks like it’s a press fit in the cradle, what’s pain in the ass to fit that would’ve been, more patients then me mate, the new lathe is paying for its self nicely also, take care, Cheers Matty
Hi Matty, yep, it was a pain in the ass to fit. There must be an easier way. No gaskets isn't too bad, keeps cost down for the build. Not sure its cheaper as the surfaces all need to be machined and the sump heavier duty to avoid any flex.
Thanks for sharing these great videos. Can you enlighten me regarding the drain plug on smart 451? Is it true that one is better off just sucking up the oil from the dipstick hole rather than risking cracking the sump pit by unscrewing the sump plug? Kind regards
Hi Alex, is your plug has a shoulder on it like mine then I would just unscrew it. Cracking the sump is more likely with tapered threaded plugs that expand the further it goes in. This plug doesn't have to be super tight, perhaps use a new washer. I think you will be fine.
I just bought a 2008 smart 1.0 I can’t find a rebuild kit for the USA anywhere. Where can I find parts to do this for my smart? I just purchased for $800. Id love to do the rebuild myself as well. Seems previous owner locked the motor when a belt broke and it overheated. Was towed into a shop and they just left it there for two years til I bought it.
Hi mate, I found everything I needed on ebay and other online shops. Wasn't cheap but its available. This link will help you www.euspares.co.uk/original-parts/smart/fortwo/fortwo-coupe-451
Hello I’m trying to rebuild my engine and I’m curious if I bore the oem pistons from 72.0 to 72.25 will car run funny with ecu and everything else stock ? That’s the only pistons I can find and my cylinder walls have a scar like yours .
Hi Josh, sure that will run fine. I went 1mm oversize and also runs perfect. The oxygen sensor will compensate for minor changes like this. Nothing to worry about
@@Mezzmoengineering Thank you for your quick reply. I also found this website: www.fq101.co.uk/data-a-reference/50-tightening-torques.html, which has some of the specs and you just confirmed their info. Thanks a lot.
@@MezzmoengineeringDo you by chance have the valve clearance specs for exhaust and intake...apparently they are supposed to be different, but I only saw you use a 0.006 measure. Thanks
@@gLandBiA The clearance for the inlet side is 7 to 10 thou, mine were all just over 6 thou which is fine. Exhaust is a bit bigger at 10-13 thou. Again mine were all around 10 thou
Where did you get parts from? I bought the same car on auctions and run out of cooland after hitting a kanga. Engine don’t start, i can see it will not have compression at all…
Hi mate, parts no easy to find. I searched online and found most things are listed on ebay and I did buy some parts direct from Mercedes. I could not find a complete repair kit, maybe someone else might be able to add to this...
@@Mezzmoengineering my next question would have been if you know the codes for the o-rings but i found the link in the other comments. That link saved me 😁I have a 1.0 brabus with 120.000 km and i want to do the timing chain and tensioner.Thank you for the video. I subscribed!
@@teamfutut Good one, thanks for joining. My uploads are slow lately as I'm in the process of designing my dream workshop. I hope to start documenting the build early next year.
Hi mate, I found everything I needed online, not cheap but can be purchased. check this link www.onlinecarparts.co.uk/car-brands/spare-parts-smart/fortwo-coupe-451/22474.html
@@Mezzmoengineering cheers mate, I'm currently on doing a freshen up of a 2009 turbo smart. Can find bearings but not bolts. The TIS doesn't mention anything about replacing the bolt so I'm wondering if they are reusable. They are the 12 point head version.
Hello Mezzmo I have a question I have one engine that the crank marks are not line up. The gear can spin and anybof you guy had this problem I have pic.
Hi Josh, boring to that size is fine. The engine will run perfect as the oxygen sensor will deal with this small change. Only thing to consider is you should really do all pistons otherwise it wont be balanced perfectly. It will still run well but if you do just one piston you might notice a slight imbalance. If you want to just get it running I think thats ok, if you want to do it properly then change all pistons to the same size. Up to 1mm oversize is still no problem. Nothing to worry about and no other changes needed
What’s up mezzmo I have my smart car back together and was wondering if I put a turbo on a 451 us version can the ecu be tuned or will it run with no tune trying to get more speed out of it
@@joshhernandez2144 Hi Josh, the stock ECU won't work with a turbo. Also not sure if the pistons are different on the turbo model. Anything is possible but sounds like a lot of work compared to just swapping it over for a turbo engine would be a direct fit
Hi Dave, I found them listed on ebay. I did also buy some gear direct from Mercedes, I need to find it again but somewhere online is a full parts manual including part numbers which makes finding things much easier.
@@Mezzmoengineering Thank you for your response. Please let me know when you find the parts catalog. It would help me a whole lot. It has been very hard for me to find any information or parts.
Hi Scott, great pick up. After looking at it again I see your right. Given they are in the right locations but turned 180 degrees I'll leave them as is as these are bore drilled with no locating pin so it should be fine. I know its not perfect but for what I plan to do with this car I'm ok with it. Worst case, if it fails I will put something much more powerful in there....
@@Mezzmoengineering Thanks for the reply. I am half way through building mine using your vids (merging two bad motors into one). I am worried about the torque to yield bolts for the crank and con rods. What torque did you use? Seems you went x-Nm +60 degrees on mains and +90 on con rods. I was able to source new head bolts. These cars are going to be a nightmare soon with the inability to source parts - sad.
@@muhajeralmuhajer823 Hi mate, it will definitely happen but might take some time. I plan to document my garage build on this channel and I will confirm once I'm available for works...
Never like Smart or want to own one again! after 123,000 miles suddenly lost power due the worn one of the piston ring! it has been service regular but at look Volvo S60 2.4D do over 300,000 without issue!!!! what is matter with Mercedes engineering??
I think the engineering itself is ok, BUT its definitely not designed for maintenance. Everything is very difficult to get to, I think Mercedes just want you to buy a new one when it fails
![Fixing the Cheap Smart Car (Full Engine Teardown) [4K]](/img/n.gif)
What I like about your videos is straight to the point with no BS great tutorial grade videos 👍
Thanks mate, yeah that's my style. I'm not into any BS or fluffing around...
they're called torque to yield bolts. they are one use only bolts because they stretch, it's the same as the head bolts on my 1990 ford ranger, torque to 55ft LBS then turn 90 degrees after 5 minutes
Thanks mate
Great job as always mate the man with many talents you never disappoint
Thanks mate
Jesus i needed these videos..thanks
No worries!
Very good job . Thanks
Gday, that’s amazing there’s not gaskets and only relies on the sealant, I guess that’s a cheaper option and the sealant that you get now is higher quality, just thinking out loud there, the engine and gearbox looks like it’s a press fit in the cradle, what’s pain in the ass to fit that would’ve been, more patients then me mate, the new lathe is paying for its self nicely also, take care, Cheers Matty
Hi Matty, yep, it was a pain in the ass to fit. There must be an easier way. No gaskets isn't too bad, keeps cost down for the build. Not sure its cheaper as the surfaces all need to be machined and the sump heavier duty to avoid any flex.
Great video as always, but never leave the chuck key in the chuck, very bad habit. Cheers.
Good pick up on the key, I was filming by myself that day so had key in as one hand had the camera...Agree its bad practice to leave the key in...
great videos series, thanks for share!!! I hope you can help me with the tightening torque for the camshafts caps to the cylinder head. Thank you
Hi Mate, torque for those is 12Nm
Found this great help , but can not find the torque setting for the flywheel to crankshaft anywhere any idea thanks phil
Check this link, www.fq101.co.uk/data-a-reference/50-tightening-torques.html
Thanks for sharing these great videos. Can you enlighten me regarding the drain plug on smart 451? Is it true that one is better off just sucking up the oil from the dipstick hole rather than risking cracking the sump pit by unscrewing the sump plug?
Kind regards
Hi Alex, is your plug has a shoulder on it like mine then I would just unscrew it. Cracking the sump is more likely with tapered threaded plugs that expand the further it goes in. This plug doesn't have to be super tight, perhaps use a new washer. I think you will be fine.
@@Mezzmoengineering Thanks for your reply! Take care
you realize that you put all the cam caps wrong way? all arrows shall face the chains
Yep, I know. Good pick up, I didn’t realize I’d done that until I saw the video
hey great video. so informative and clear. one thing... how much tourge did you put on the 8 head bolts
Hi mate, check this link www.evilution.co.uk/mod/torque-settings-for-fortwo-forfour-and-roadster.htm
@@Mezzmoengineering thank you so much. you saved my day big time.
Does the block have steel liners? or have you had to have some sort of coating re-applied post rebore?
I think there is a liner but it can bore 1mm oversize no problem. No coating needed, just honing like any other rebore
I just bought a 2008 smart 1.0 I can’t find a rebuild kit for the USA anywhere. Where can I find parts to do this for my smart? I just purchased for $800. Id love to do the rebuild myself as well. Seems previous owner locked the motor when a belt broke and it overheated. Was towed into a shop and they just left it there for two years til I bought it.
Hi mate, I found everything I needed on ebay and other online shops. Wasn't cheap but its available. This link will help you www.euspares.co.uk/original-parts/smart/fortwo/fortwo-coupe-451
didn't see a gasket on the valve cover? I'm guessing there was, did you use sealant also with it?
Hi mate, yes the valve cover has a gasket on it.
Did you put new crank bearings and connecting rod bearings?
No mate, those bearings were all still like new
Hello I’m trying to rebuild my engine and I’m curious if I bore the oem pistons from 72.0 to 72.25 will car run funny with ecu and everything else stock ? That’s the only pistons I can find and my cylinder walls have a scar like yours .
Hi Josh, sure that will run fine. I went 1mm oversize and also runs perfect. The oxygen sensor will compensate for minor changes like this. Nothing to worry about
Where did you find the rebuild kits for the 451 motor
Hi mate, parts are hard to find but I found most things on eBay and a couple of things were available from Mercedes.
Do you also have to go past torque on the bolts for the cylinder head and the bolts that hold the cams down?
Hi Mate, on a smart 451 the head bolt torques are 25Nm + 90°+ 90° and the cam caps are 12NM total, nothing more on the cams
@@Mezzmoengineering Thank you for your quick reply. I also found this website: www.fq101.co.uk/data-a-reference/50-tightening-torques.html, which has some of the specs and you just confirmed their info. Thanks a lot.
@@MezzmoengineeringDo you by chance have the valve clearance specs for exhaust and intake...apparently they are supposed to be different, but I only saw you use a 0.006 measure. Thanks
@@gLandBiA The clearance for the inlet side is 7 to 10 thou, mine were all just over 6 thou which is fine. Exhaust is a bit bigger at 10-13 thou. Again mine were all around 10 thou
@@Mezzmoengineering Perfect...thank you , kindly.
Where did you get parts from?
I bought the same car on auctions and run out of cooland after hitting a kanga. Engine don’t start, i can see it will not have compression at all…
Hi Mate, mostly on ebay and some parts from Mercedes
Where can buy a rebuilt kit for this thing?
Hi mate, parts no easy to find. I searched online and found most things are listed on ebay and I did buy some parts direct from Mercedes. I could not find a complete repair kit, maybe someone else might be able to add to this...
Hello sir! Did you change all ar any of the orings on the timing case?
Sure, all new o-rings. I don't plan on pulling the engine out again
@@Mezzmoengineering my next question would have been if you know the codes for the o-rings but i found the link in the other comments. That link saved me 😁I have a 1.0 brabus with 120.000 km and i want to do the timing chain and tensioner.Thank you for the video. I subscribed!
@@teamfutut Good one, thanks for joining. My uploads are slow lately as I'm in the process of designing my dream workshop. I hope to start documenting the build early next year.
@@teamfutut I'm busy on other things lately, but the Smart car is far from finished. Stay tuned!
Where are you get parts for a engine? Can you please provide name Brandt and may be part numbers for Pistons, Piston rings and stuff like that
Hi mate, I found everything I needed online, not cheap but can be purchased. check this link www.onlinecarparts.co.uk/car-brands/spare-parts-smart/fortwo-coupe-451/22474.html
Are the con rod bolts reusable?
I was happy to re-use them as my car is just for use on private property. I think its fine, others may have a different view.
@@Mezzmoengineering cheers mate, I'm currently on doing a freshen up of a 2009 turbo smart. Can find bearings but not bolts. The TIS doesn't mention anything about replacing the bolt so I'm wondering if they are reusable. They are the 12 point head version.
@@s4ms0n1t3 They will be fine. I've never replaced rod bolts on any of the engines I've built over the years and never had an issue
Hello Mezzmo I have a question I have one engine that the crank marks are not line up. The gear can spin and anybof you guy had this problem I have pic.
Hi mate, ok, send me a pic if you want. Was the timing chain stretched allowing it to skip a tooth?
@@Mezzmoengineering no the engine has 20,000 miles on it and the chaine look's lkke new. Give me a number to send you the pics
@@estudiantedeneworkmarketing. email is mezzmo@iinet.net.au
WHAT ARE THE TORQUE SETTINGS????
Check this link, www.fq101.co.uk/data-a-reference/50-tightening-torques.html
Can you bore a stock engine from 72.0 to 72.25 or is that too much trying to get my smart car passion 451 running my cylinder walls are scared
Hi Josh, boring to that size is fine. The engine will run perfect as the oxygen sensor will deal with this small change. Only thing to consider is you should really do all pistons otherwise it wont be balanced perfectly. It will still run well but if you do just one piston you might notice a slight imbalance. If you want to just get it running I think thats ok, if you want to do it properly then change all pistons to the same size. Up to 1mm oversize is still no problem. Nothing to worry about and no other changes needed
Thanks your videos are extremely helpful it’s not much content on smart cars
@@joshhernandez2144 Thanks mate. Its been a while and probably a bit longer to go too but I will be posting more Smart Car videos in the future
What’s up mezzmo I have my smart car back together and was wondering if I put a turbo on a 451 us version can the ecu be tuned or will it run with no tune trying to get more speed out of it
@@joshhernandez2144 Hi Josh, the stock ECU won't work with a turbo. Also not sure if the pistons are different on the turbo model. Anything is possible but sounds like a lot of work compared to just swapping it over for a turbo engine would be a direct fit
Where do you get the rings and pistons for a smartcar 2008
Hi Dave, I found them listed on ebay. I did also buy some gear direct from Mercedes, I need to find it again but somewhere online is a full parts manual including part numbers which makes finding things much easier.
@@Mezzmoengineering
Thank you for your response. Please let me know when you find the parts catalog. It would help me a whole lot. It has been very hard for me to find any information or parts.
@@davebarney7305 Hi mate, check this link, smart.7zap.com/en/eu/fg/smart/fortwo+cabrio/fortwo+cabrio/60n/451432/m/132930/60k/01/0/
The cam bearing caps went in backwards (arrow forward - I checked vid #3). Might want to address that asap. thanks for the videos.
Hi Scott, great pick up. After looking at it again I see your right. Given they are in the right locations but turned 180 degrees I'll leave them as is as these are bore drilled with no locating pin so it should be fine. I know its not perfect but for what I plan to do with this car I'm ok with it. Worst case, if it fails I will put something much more powerful in there....
@@Mezzmoengineering Thanks for the reply. I am half way through building mine using your vids (merging two bad motors into one). I am worried about the torque to yield bolts for the crank and con rods. What torque did you use? Seems you went x-Nm +60 degrees on mains and +90 on con rods. I was able to source new head bolts. These cars are going to be a nightmare soon with the inability to source parts - sad.
Hi mate, check this link for torque settings, www.evilution.co.uk/mod/torque-settings-for-fortwo-forfour-and-roadster.htm
Were u get the parts
Hi mate, I found them on Ebay. From memory was based in Germany. I also purchased some parts directly from my local Mercedes dealer.
Where did you order the rebuild kit?
Hi, I found the parts I needed on eBay. Not cheap but they are available
@@Mezzmoengineering do you have a parts list? Or a link?
Try this link www.euspares.co.uk/parts-catalog
#2
Where is your garage mate
Hi Mate, just building this in my spare time. I do have plans to build a shop soon, but still a few months off
@@Mezzmoengineering hi... If u open please tell me.
@@muhajeralmuhajer823 Hi mate, it will definitely happen but might take some time. I plan to document my garage build on this channel and I will confirm once I'm available for works...
@@Mezzmoengineering I wish you all the best.
Thank you Jesus christ!
Never like Smart or want to own one again! after 123,000 miles suddenly lost power due the worn one of the piston ring! it has been service regular but at look Volvo S60 2.4D do over 300,000 without issue!!!! what is matter with Mercedes engineering??
I think the engineering itself is ok, BUT its definitely not designed for maintenance. Everything is very difficult to get to, I think Mercedes just want you to buy a new one when it fails