VW Alternator W/ Fan Shroud Kit
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- Опубліковано 6 жов 2024
- For my latest VW Air Cooled Engine build I needed a fan shroud and everything that goes with it. It did not come with any sort of instructions and I figured yours won't ether so I decided to share my Assembly process for setting up the Alternator and Cooling Fan into the new 36 HP Ductless, Dog House, Fan Shroud. Hope this helps someone and prepares you for the latest Chinese ........
I looked online for a quality fan washer that is made of spring steel... Nope! When I install my next fan using this kit I will probably assemble the fan assembly and lightly weld the compressed washer to the fan. With all that vibration it seems like it will just start wiggling around without the welds. Now we know why there are two washers... The first is to be shocked it didn't work and the second is for the actual install lol.. Seems each install requires a fresh washer :p
There shouldn't really be fan vibration! The original fans had balance weights that you could see. It was designed to operate with a max crankshaft RPM of 4,500. The fan turns approx 1.5 times faster 4,500 x 1.5 = 6,750 so if you add a cam and crank it up to 5,500 thats 8,250. Thats why they flex and crack. Thats why racers take the belt off or run a smaller crankshaft pulley. "Power Pulley" This is also way it can help to clean an old dirty fan and why I would not paint the fan. At those RPM's it gets scary. It's also why they weld the fan because the stock one's would come apart.
Took mine apart many months ago. This was a great refresher to ensure I reassembled correctly!
This will really help the person that swapping over to an alternator. Takes a lot of parts to get it done right
Not even and pictures for assembly. I had to put it out there. Stay Cool this summer
Thank you that made more sense than reading the manual- great help👍
Great to hear!
Beauty ,alt build ,Good luck ,if give it 2 years at the best, Tip call all local and regional gen alt elect rebuild shop ask about old gennys or alts running or not.
Thank You, I like the detail and you explain the process clearly.
Glad you enjoyed it!
Another great video. Down here we pretty much only use alternators. Generator regulators are hard to find these days. All the sand rails I've built (13 of them now) I used the china alternator on them. We have had no issues. The Bosh alternator is definitely superior but 4 times the price.
Your Bating 100%. That makes me feel good!
Excellent video, answered lots of my alternator questions. 🤘😁👍🇺🇸
Glad to help!
Great tips and steps.... great video as always.
Thanks buddy I appreciate your support. I'm having one of those day's......
I’m just switching over to a one wire. Great video! Hope your well EZ!
Hey Ez, good morning... "Chrome won't get you home" - I wish my 17 year old self had known that back in '85 and '86 when all my vws mostly sat 'cause they looked good but ran like junk!!! 🤣🤣 Oh and thanks for the informative video today. I've been thinking of upgrading to an alternator setup for my '65 big bore 40hp engine.
I spent a fortune on cheap “chrome” when I was young. Never again.
Right on
I have heard that the Scat fan shrouds are very good and accurate to the originals.
Hi eze i just happened on this video and it was great. Just getting ready to put the 1600 back in the dune buggy. I'm sticking with the generator for now.
Thanks for a very informative lesson.
Nice 👍 Nothing wrong with a generator. It's more compact and takes less HP away from the engine.
I bought the same altenator kit about 7 years ago to my 1303s and i hade the same opinion on the belt but it was the only belt i had at the time. But i never change it and it still runs fine today strangely enough.
That gives me some hope! Thanks
Thank you. your video is very helpful.❤❤❤
Great job........and your right sometimes you have to use what you can get. I'm like you alot of this stuff isn't what it should be. But you get by and have lots of spares. I did also get the welded fan and so far it has held up.
That's good new's Wes. Thanks for sharing. I we get lots of miles and smiles with our alternator fan set up.
Keep an eye on the alternator bearings. Those have a reputation for going bad. The best alternators to use are the German made ones or the ones made by Motorola. Good luck. Great info. 👍
Thanks for the tip!
Great teaching. Thank you.
Glad you enjoyed it!
Great Vid, always nice to see a fan bolted up correctly.....You will soon be getting into the great fuel pump v pushrod length debate next......for those that are going to convert to alternators and run a stock pump.
No pump issue since I built my 1800 engine with FI case! (No Fuel pump hole in the case) so I put electric fuel pump on 3 of my cars..... No more vapor lock, no more cranking to fill up the float bowl, no more shimming. Me Likey Electyric fuel pump plus regulator magic. Thinking about taking the fan assembly someplace to have it spun balanced??????
@@TheEZGZ I am kinda stuck with the stock pump (6 volt electrics) Good idea about getting the fan balanced, poor thing is under enough stress trying to move all that air, being out of balance will only add to its stress........they usually have small balance tabs welded in place......you say you can't see any.....thats odd?
Awesome. Thanks for sharing. Have a great week.
Same to you
I have broke two of those after market alternator stands keep a eye on it. Both broke at the base after about 1000 miles. Installed a original problem fixed.
Thanks for the heads up! We appreciate it.
Not a Aircooled VW guy but really been enjoying these vids recently. I'm about to do a 43mm bore swap on my moped, Maybe even do some porting.
More displacement is the most reliable way to increase power. Good Luck with your project.
Haven’t saw any new videos from you in a couple weeks. Hope everything is well with you my friend. 🤜🤛
All good
Nice video EzGz!
Nice one !
Thanks!
So glad someone has posted a vid on this subject! I've been concerned about those aftermarket fan hub kits for sometime now a d was wondering if anyone else had ever had issues before with them?
We use the stainless strap by Scat a lot and no issues with them to date. But I do look at the spot welds on them and wonder if they would ever pop apart :/
I noticed the centre mount 40IDF on that motor in the back ground and it reminded me that you'd had sone struggles getting one to accelerate smoothly without a flat spot. Believe it or not running the 44IDF with the bigger accelerator pump corrects a lot of the acceleration flat spot to where it accelerates perfectly (However, for motors under 1900cc we found the venturies need to be reduced to something around 28~29mm and rejet). Adding preheat helps too. I hope this helps as a side note and thank for another fantastical informative vid :)
Thanks Mathew! I always appreciate your input on my channel
Lots of goodies that you ordered. Nice verbal review on what to do. Thanks for sharing and helping us with all this. Take Care my Friend and keep VeeDub’n for us. BigW:-)
Like you say, its junk but that all you can today . Not just car parts it in ever thing. thanks for the video
If people would shop for quality instead of price we wouldn't have this problem..... It's a disposable society these days.
Gotten rid of the generator a few years ago and went alternator. And have a 40idf downdraught carb on my motor and have a inch of clearance between carb and alternator.
coool !
Hey man Kevin here from Australia. I have a newish Chinese engine in my Betsie a 1915cc and your right what we work with now is a lot of the time junk but it is all we have . Even the sound is different the fans are crap its hit and miss with them but if we want to play we use what is sold.
✌ Peace man.
They used to say Hitlers revenge. I guess we should change that to Chinese Attack..... hehehe
Ha!
We no longer have German engines, we have Chinese engines.
Such a true statement.
Good video. Thank you.
If we didn't own a older German air cooled engine we wouldn't know the difference. It will still work and it's still Air Cooled Fun to me even if I do get frustrated at times.
@@TheEZGZ we always seem to find a way to make the chinese stuff work. Like you said these cars arent daily drivers anymore. They are hobby cars now.
Thanks.
Love the videos. I am excited to tell you I am starting an 1800 engine build with the 74mm crank and Forged I beam 5.325 rods, 110 cam, Empi 56cc heads with 40x35.5 valves with Hi Rev single springs and 1.1 Scat solid shaft rockers and swivel feet with lash caps for the valves. All the parts should be here next weekend. I am suppost to be getting an AS21 fuel injection block all done up ready to go from my local vw speed shop. Thanks again for all of your detailed videos and Engine builds..What is the next engine you are building with an Alternator? I hope you do a video on it. Thanks again, Jeff Goodbar..
I hope you get lots of miles and smiles.
Great idea 💡
More AMP
You got it!
Chinese or not that looks nice. I could do with new tins but a paint job comes first.
I would have definitely put some lock tite on that fan if I had to use that aftermarket bent washer. If not, you should plan on retightening after a few hundred miles.
Come on man, you know I'm not done with it. I just want to make a vid to show where all the peaces go and what to expect.
TheEZGZ ok bud 👍🏻
I find the same constant fitment problems left and right. Currently having nightmare issues getting a forged crank from AA Performance to work with a crank get set (also from AA performance). I have yet to get the damn timing gear on. 5 tries and I ended up damaging it (and the bearing too when my anger got the better of me). Oh. And the forged flywheel also is going to require 4 shims to get to proper end play! There's no way around it!
AA Pistons has always treated me right. I'm sure they will fix you up. I feel your pain and frustration. I think this long term lock down adds to everyone's impatience. I think the wholesalers and everyone down the line needs to speak up and stop this poor quality. But on the other hand we have to be willing to pay a fair price.
I'm driving my VW bug every day! Of course I have AAA...
50 year old car, ya just never know. hehehe
Are Holes in fan better?
Mine has no holes and his family entry edge on fan has 3/8 " gap
Away from shroud
should have a total of 12 shims. and the vent should be pointed down. air comes in through the alternator and out through the bottom of the engine. Those belts are total trash. order a continental.
9 shims are required on either side of the pully....Total of 9......3 shims are required on the fan side. if you dont have all the shims. the pully will crack same with the fan if you dont have all the shims the fan will crack.
So which is it?😜
My experience is about 11 shims. On the inside you just need clearance for no fan contact and full support. On the outside you need fanbelt tension and enough threads without bottoming out the nut. New aftermarket is mostly junk.
Hay EzGz do you believe in keeping the thermostat and flaps working because here in Australia Queensland people I spoke say not needed and also I have trouble purchasing a thermostat, thanks 😊
Let's just say the factory put it on every car they made. It wasn't an optional thing. Gene Berg used to swear by them. Lot's of folks swear at them and don't know how to adjust them. Instead of getting 100k miles from your engine. Maybe you will only get 75k. It depends on how you drive. If you give the engine a chance to warm up before you actually drive it that will help.
Hi EZ it has been a while since your last video . Are you allright . I really enjoyed your videos man .
At 14:50 you say you can put the intermediate plate two ways. This is incorrect as the outside holes will not line up with the gen/alt mounting holes if you have it wrong.
Ooh nooo not those chinees alternators. If got 3 of those and all bearings go bad in a 100miles. The castings are also full of air and break when trying to rebuild. Better buy an old one, doesn't care about the state its in, rebuilding a genuine bosch will save you lots of money and headaches. Good luck...., i would send that chinees crap back straight away. My experience.
I will test and get back to everyone. Stay tuned
thank you ezgz
Thanks you as well
Limburger cheese, what's a limburger? the B52s sang about it.
Great video. I'm doing this myself on the next project . Which alternator was in the kit ? I can buy kits with a Bosch alternator or with a chinese brand . The one with the chinese one is about 100 € cheaper here in Belgium, but the store doesn't give any warranty ...
I just bought the cheapo 55 amp one. It'll be fine
Question for ya, Ez I’m doing a replacement upgrade and I’m wondering if there are different sizes in the chrome nut that holds the belt pulley. I ordered the same kit that you are using there I think. From empi. Brand. Thanks for all your great help keep up loading your helpful videos. Derick
I think they are all the same
@@TheEZGZ thanks for getting back to me. I needing a replacement nut. And was wondering. I didn’t know and hated to order the wrong size. I hope your feeling ok. Haven’t seen any new up loads from ya. Can’t wait to hear more about a brake up graded. I won’t to go at least to front rotors. Thanks again . Derick
You can get yourself a Gell Saddle for your bicycle
No Thanks. If you leave your bike out in the sun and go in for a cup of coffee it holds the heat and will cook your nuts. hehehe
2:15 plug the holes in the fan shroud if you're not going to mount the plug wires there.
Good Point!
Don't use the chrome pulley there cheap. You will find that it will develop stress cracks like a fan will.
Question: How much does that bubble top aluminum case weigh? I know they are heavy. I've got a TF1 case and it must be like, 60 lbs!!!
I forgot what my last one weighed but I will post that up when it gets here?????
An alternator is better on a dune buggy and especially a sand rail due to water! I have had generators temporarily stop working for hours after a good rain soak!
Really! Most of my stuff is protected somewhat. I must admit. I do prefer the alternator and always ran one on my sandcars. Only problem I ever had was a grain of sand making the brush's stick and that was a quick fix.
@@TheEZGZ sand is a problem for sure, especially when ya sitting naked on a beach!
@The EZGZ. What brand fan shroud is that. I have a 1915cc engine with dual Kadrons & I want to go with an all black OEM look. I am between used powder coated OEM, Scat black powder coated or the CB Performance shroud. Any recommendations? Thanks
I got mine from AA pistions and haven't installed it yet. It does seem to have all the channels inside. I wouldn't spend the money on new powdercoat as eventually it will get scratched anyhow. Rattle can is easy to touch up and I haven't seen the inside rusty due to all the air movement
@@TheEZGZ So which of the 3 would you recommend? OEM used German, Scat, CB Performance or the one from AA Piston?
@@paulv8453 Well, for one thing you didn't what kind of vehicle it was going in or what it would be used for. I made a video of my results. I always choose stock with stock flapps and thermostat for everyday street use in a stock car even if it is a 1915 with Kadrons. OEM is old and worn out. Any brand of new stuff is a gamble and just because you get a good one one time it doesn't guarantee it will be good the next time. If you want a powder coated show car it doesn't matter IMHO because those kind of cars don't get driven much. Recently I drove my Baja over 12k miles in one year. Not many people need to or want to do that. I don't take anything for granted. Every time I get gas or go on a long ride I'm always looking and listening for problems and I seem to find lots of them. If I tell you what to buy and you don't like it I don't want you to blame me. Lately everything I buy is a disappointment.
@@TheEZGZ Hello EZGZ! I really enjoy your channel. I have a 1970 VW Bay Window Campmobile. In the last 10 years, I have only driven it about 1,000 per year. He used to be my daily driver & ONLY vehicle but things have changed. He’s now a weekend warrior. 😀 I do plan on getting back into driving him more often and putting more miles. I want to be able to go long distance from one coast to the other if I want. I live in central Texas where it’s hot most of the time. It doesn’t really get too cold here, maybe in the high 20’s. One engine builder warned me of flaps because they could get stock closed and advised me to just let it warm up for at least 5 minutes before driving. I don’t drive my bus hard. I try to go easy on him and I usually take back country roads vs the freeway. I was thinking about ordering a complete OEM German kit from Awesome Powder Coating. I’m sure everything has its pros and cons. Thank you for your time
@@paulv8453 Flapps sticking open is an old wifes tale no matter where you live. 94mm cylinders are a horrible idea for a bus. I have never had a problem or failure using Gene Berg parts or advice take some time and read this stuff
www.geneberg.com/cat.php?name=Valve%20Train&cPath=6
You mentioned that the alternator takes more hp to turn than the generator is it a noticeable difference with a stock 1600dp
Your seat of the pants meter wouldn't probably pick it up but you might see numbers change at a drag strip
What's the deal with the round hole in the outside plate?
My printed diagram shows it above altenator.
I'm glad you asked! I just went out to take a look at that engine and noticed the lower left mounting screw is missing. I did place the hole at the bottom on mine. I don't notice any problems so far. If your directions show it on top then I would go with that. I think I lost the screw because the fan is not perfectly balanced and it's setting up a vibration. Before I installed it I took it to the machine shop that balances my my engine parts but they could not balance fans?? This Alternator / fan set up concerns me.
Jbugs called it a breather hole then he put a wire holder it it then wires. I'm putting it underneath with wire clip
What happened to the aluminuim case videos didnt get a chance to finish the second one ?
Drama in progress. Had to send it back.Defect. Stay tuned
17:27 what do you do when it doesn't want to go on
could you be more specific?
@@TheEZGZ I got it on now, but that first nut part of the hub set. I had such difficulty getting it on all the way it wouldn't even budge.
That Gen. On the red buggy and the one in the floor is installed incorrectly whitch tells me the tin on the back of them is wrong to.
Come on man.
Seems to be working and keeping things in the normal operating range. Please explain?
Havent seen new videos you doing ok? If not get better
Still waiting on parts. Uploading now.
Parts ripp off as old as time.
I bought vone of these that looks identical it is a rebuilt peice of crap from Bosch (Really)? better to take a old on and rebuild it yourself the ,garbage sold under german name is very sad and pathetic,just like all parts now ,China counterfittjunk.,thanks US customs dept. Buyer beware
I agree