I have used the cork Felpro gaskets in the past on my cast Aluminum covers and really haven't had an issue. The last set I purchased was the Felpro rubber gaskets. They seem to be leaking. Has anyone else had an issue with the rubber gaskets?
I've had much better success with cork gaskets. I glue them to the valve cover with 3M 1357 adhesive, then use "The Right Stuff" between the gasket and the head. No leaks that way.
You seem to have to really tighten the VC to get the rubber ones not to leak. I also prefer cork. Glued to the VC and then a coat of grease on the surface so the don't stick to the head. I've reused them many times that way after adjusting valves.
Quote from: 98SVT - was 06GT on March 08, 2020, 08:14:35 PM
You seem to have to really tighten the VC to get the rubber ones not to leak. I also prefer cork. Glued to the VC and then a coat of grease on the surface so the don't stick to the head. I've reused them many times that way after adjusting valves.
+1
I don't want to glue them to the head. They have to come off for adjustment on occasion. I do use a bit of sealer where the intake meets the head. The cast aluminum covers have no retaining lip like stamped steel.
Quote from: The Going Thing on March 08, 2020, 09:09:12 PM
I don't want to glue them to the head. They have to come off for adjustment on occasion. I do use a bit of sealer where the intake meets the head. The cast aluminum covers have no retaining lip like stamped steel.
Re read reply #3.
If you glue them to the valve cover they will last a long time. Factory rockers are not adjustable unless you have a solid lifter cam in a HP 289.
Quote from: The Going Thing on March 08, 2020, 09:09:12 PM
I don't want to glue them to the head. They have to come off for adjustment on occasion. I do use a bit of sealer where the intake meets the head. The cast aluminum covers have no retaining lip like stamped steel.
Quote from: The Going Thing on March 08, 2020, 09:09:12 PM
I don't want to glue them to the head.
I doubt you will get that recommendation from anyone here....... personally a little slather of grease on both sides of the gasket will give you the holding properties along with sealing and subsequent release you require.
Quote from: Royce Peterson on March 09, 2020, 09:34:36 AM
If you glue them to the valve cover they will last a long time. Factory rockers are not adjustable unless you have a solid lifter cam in a HP 289.
Quote from: The Going Thing on March 08, 2020, 09:09:12 PM
I don't want to glue them to the head. They have to come off for adjustment on occasion. I do use a bit of sealer where the intake meets the head. The cast aluminum covers have no retaining lip like stamped steel.
Yes, I built the 427. It's a solid roller.
In my experience a solid roller cam should not require any periodic valve adjustments so long as a good quality roller rocker with a lock nut is used.
The problem is if someone uses worn out factory 406 / 427 style adjustable rockers. Those have no lock nut and the adjusters are only good for one adjustment before they are worn out.
Quote from: The Going Thing on March 09, 2020, 11:50:16 PM
Quote from: Royce Peterson on March 09, 2020, 09:34:36 AM
If you glue them to the valve cover they will last a long time. Factory rockers are not adjustable unless you have a solid lifter cam in a HP 289.
Quote from: The Going Thing on March 08, 2020, 09:09:12 PM
I don't want to glue them to the head. They have to come off for adjustment on occasion. I do use a bit of sealer where the intake meets the head. The cast aluminum covers have no retaining lip like stamped steel.
Yes, I built the 427. It's a solid roller.
I am running Precision Oil Pumps Shafts, Rockers and Stands. However, After the break-in and running it up to 6500 a couple times, I need to go back and tighten a couple.
Felpro cork gaskets glued to the valve covers with super weatherstrip adhesive. A light smudge of lithium on the gasket. Rubber gaskets related to the circle file and exhaust port runners cleaned up... As soon as the roads dry I am going to isolate with a bit of road time.
Quote from: The Going Thing on March 11, 2020, 03:13:20 AM
I am running Precision Oil Pumps Shafts, Rockers and Stands. However, After the break-in and running it up to 6500 a couple times, I need to go back and tighten a couple.
Just a reminder that Kieth's engine is modified with solid lifter cam/valve train so any 67 GT500 owners with more stock hydraulic cam/valve train should disregard attempting to "Running up to 6500 a couple time " or risk serious engine damage. Something to consider is that there are many reading that might not know the difference and think what is OK for one is OK for others. Now back to the discussion.
Has this become the Concours forum? I would venture to guess that most here know better than to spin most engines up to 6500, and the vast collective of Shelby owners do not have stock engines. I think the discussion was about being able to adjust/inspect the valvetrain and the rubber valve cover gaskets leaks like a sieve. I guess 427heaven's endless blathering about 170MPH 67 500 is acceptable. Back to my corner now.
I will remember to try and be more concise with my postings.
A comment:
"you have to really tighten the valve cover in order not to have the rubber VC gasket not leak".
Then beware, you might have slightly stressed the aluminum cover, to the point of creating a crack. I have seen that happen. (not on my car though)
And: use Chapstick on the unglued side of a cork gasket to keep it from sticking. Works on carb gaskets too.
Rodster: I absolutely agree with the frailty of sand-cast aluminum. There is a slight mismatch at the head/intake area. I think the cork is a little more forgiving in sealing imperfections.
+1
That's how we did ours with felpro gaskets, no leaks no problems
Quote from: The Going Thing on March 20, 2020, 12:02:47 PM
Felpro cork gaskets glued to the valve covers with super weatherstrip adhesive. A light smudge of lithium on the gasket. Rubber gaskets related to the circle file and exhaust port runners cleaned up... As soon as the roads dry I am going to isolate with a bit of road time.
Quote from: The Going Thing on March 20, 2020, 12:32:19 PM
Has this become the Concours forum? I would venture to guess that most here know better than to spin most engines up to 6500, and the vast collective of Shelby owners do not have stock engines. I think the discussion was about being able to adjust/inspect the valvetrain and the rubber valve cover gaskets leaks like a sieve. I guess 427heaven's endless blathering about 170MPH 67 500 is acceptable. Back to my corner now.
I will remember to try and be more concise with my postings.
Kieth , there is no need to get so defensive. This is not about you in particular. Thank you for making your car information contributions . It is in the best interest of the marque to consider others who may be reading . Actually the majority of questions in the individual year categories ARE about historical facts and procedures . Many less informed people come here and read everyday.We are trying to help not hurt. Don't assume that every reader is as informed as you. No harm in talking about modified systems just be mindful of others who may not be as informed as you.
Bob: I am not thin-skinned. However, in light of the hostility and nastiness in recent history, I didn't dismiss the response.
I try and be helpful most of the time. Sometimes the discussions are general, but fitting for the thread. I try to even avoid hijacking threads.
Anyway, I have a how-to post that may help people with a better way to fix the chrome edge of their A/C vents and control on 69-70 cars with a product few here are likely to be familiar with.