No pop, it’s a flop, That’s a lot of wiggle In those 2 valves, I hope mine has a good vacuum on the valves and no wiggles, Great true information, Thanks 😊
Instead of pulling it out fast. You can spray the valve stem with a little WD40, insert it, put you finger over the hole as you did and slightly pull the valve out. You should feel a little suction on your finger.
How can someone check for leaky valve guides if the guide housing is cracked?? Top of spring seat location of the neck. I know they’re pressed in but can it leak oil into the chamber/port??
This method baffles me I have some play in my guides but they all still pop from what I can tell. Sill have to remove a couple seals but the ones I notice have the most play still pop. Non of them are nearly as bad as the ones in the video as far as play so maybe that’s why I’m not noticing much. The exhaust valves make a quieter pop noise compared to the intake side with the head I’m working on I wonder if that means just the exhaust side ones need replacing but I’ll probably just replace them all.
Make sure there's no oil or valve seal. A good guide you'll actually feel the suction on your finger tip before the pop. As shown in the video, a semi worn guide will have a slight pop but not alot of suction. It's just a quick check but actually fairly accurate in terms of determining if you'll need guides or liners
Would worn valve guide's burn oil when starting up and acceleration from a dead stop ? My stupid self put worn out 882 heads on my sbc 355 new aluminum heads are coming tomorrow compression is within 10% off each other 140 and 130 psi
Yep that can be worn guides or valve seals causing that. But that compression is certainly on the low side so maybe try a leak down test to see where your compression is going
@@cuttersperformance I'm trying to gauge my finances accordingly, since I'm getting my m62tu completely rebuilt :D. hopefully it will be reasonable since the valve stem guides are brass, and they appear to be replacable. I hope!
@@BlueCollarCriminal I'm sure you found an answer long ago, but in case anyone else is wondering: Short answer: it requires way more machinist labor time than a simple press out & in operation. More detail: If you have valve guides that are bored into the head casting (like with the AMC 258, for example), installing press-in guides requires exact centering to bore out the existing guides (which can be labor intensive because the guides themselves are likely out of round to the point where getting the exact center will be easier said than done). After that, the bores will need to be reamed to reach an exact diameter to accommodate the appropriate press fit of the new guides that will be going in to replace them.
@@qazisajid9119 have you tried a leak down test? Your engine might be getting tired I have a leak down video coming up soon if you haven't done one before
@@cuttersperformance what do you mean by leak down test? I did compression test last night and readings were 175 for all 4 pistons dry and wet do u think any problem could be with valves or valve guides ?
You can't find better or more informative videos than cutters
Appreciate that man, thank you
Thanks so much for this video explanation of a quick valve guide check method!
Really appreciate you posting this. Have to check valve guides and had no idea how other than a wiggle test. Thanks!
I learned something new today.
very good idea on testing the condition of the valve guide
Super video thanks, that Head's very different to my Volkswagen BMD but the principles are clear & relevant
Nice practical test
No pop, it’s a flop, That’s a lot of wiggle In those 2 valves, I hope mine has a good vacuum on the valves and no wiggles, Great true information, Thanks 😊
What a fantastic, informative video. Really useful, many thanks
Fantastic video, great info thanks
Thank you for the great sharing!
Nice! This is a really good idea. Thanks for sharing it.
This helped my yz250f valve situation thank you
Excellent content!
4:06
Thank you for the vid
Thank you so much really makes sense to me good Valve guide good sound
Instead of pulling it out fast. You can spray the valve stem with a little WD40, insert it, put you finger over the hole as you did and slightly pull the valve out. You should feel a little suction on your finger.
5:20 y'all heard it boys.
Hahaha amazing 😄
No nut November is almost over 🤣
Mine stopped sucking years ago!
😂
Thanks alot
Thanks
nice bro ☺️
How can someone check for leaky valve guides if the guide housing is cracked?? Top of spring seat location of the neck.
I know they’re pressed in but can it leak oil into the chamber/port??
This method baffles me I have some play in my guides but they all still pop from what I can tell. Sill have to remove a couple seals but the ones I notice have the most play still pop. Non of them are nearly as bad as the ones in the video as far as play so maybe that’s why I’m not noticing much. The exhaust valves make a quieter pop noise compared to the intake side with the head I’m working on I wonder if that means just the exhaust side ones need replacing but I’ll probably just replace them all.
Make sure there's no oil or valve seal.
A good guide you'll actually feel the suction on your finger tip before the pop. As shown in the video, a semi worn guide will have a slight pop but not alot of suction.
It's just a quick check but actually fairly accurate in terms of determining if you'll need guides or liners
Are you supposed to do this with oil on the stems or dry?
Dry or just very lightly lubed
Would worn valve guide's burn oil when starting up and acceleration from a dead stop ? My stupid self put worn out 882 heads on my sbc 355 new aluminum heads are coming tomorrow compression is within 10% off each other 140 and 130 psi
Yep that can be worn guides or valve seals causing that.
But that compression is certainly on the low side so maybe try a leak down test to see where your compression is going
@@cuttersperformance compression is low due to the 882 heads being 76cc chambers I just rebuilt the engine
Ahh ok, does it have a decent cam aswell?
My boosted engines with approx 8.5:1 will usually have around 145 to 155 psi cold after break in
@@cuttersperformance yeah it's a comp cams xe258 retrofit roller 206/212 duration 110 lsa .480/.488 lift @.050
Is it typically expensive to replace valve guides?
They can be, especially if they are not a press in guide. Depends on your local machine shop prices
@@cuttersperformance I'm trying to gauge my finances accordingly, since I'm getting my m62tu completely rebuilt :D. hopefully it will be reasonable since the valve stem guides are brass, and they appear to be replacable. I hope!
@@cuttersperformance why would a non press guide replacement cost more than a press in?
@@BlueCollarCriminal
I'm sure you found an answer long ago, but in case anyone else is wondering:
Short answer: it requires way more machinist labor time than a simple press out & in operation.
More detail: If you have valve guides that are bored into the head casting (like with the AMC 258, for example), installing press-in guides requires exact centering to bore out the existing guides (which can be labor intensive because the guides themselves are likely out of round to the point where getting the exact center will be easier said than done). After that, the bores will need to be reamed to reach an exact diameter to accommodate the appropriate press fit of the new guides that will be going in to replace them.
My car smokes only at cold start.and it now consume oil there is a blue smoke on cold start at 2000+ rpm what would be the problem
Does it give a good shot of blue smoke at cold start up? Could be valve seals
@@cuttersperformance yes only on at first acceleration after that its quite normal i changed its valve seals but after some time it begin to burn oil
@@qazisajid9119 have you tried a leak down test? Your engine might be getting tired
I have a leak down video coming up soon if you haven't done one before
@@cuttersperformance what do you mean by leak down test? I did compression test last night and readings were 175 for all 4 pistons dry and wet do u think any problem could be with valves or valve guides ?
@@qazisajid9119 what engine is it?
Good Lord you talk a lot to say something that could have been said in like 30 seconds
I have a tendency to do that