Join Date: Aug 1998
Location: Waldorf Md. USA
Re: Are splash shields on valve springs helpful?
I might be wrong, but I doubt that the seals are causing your plug fouling. Everyone seems to forget that the early small blocks, up until the mid 70's, did not have any valve stem seals other than the o-rings and the splash shields. They certainly did not foul plugs.
As far as the plastic sleeves go, are you sure you got the right seals ? The stems should be .340 or so, so they are correct. Most of the sleeves that I have seen are almost an inch long, you usually have to cut them because they are too long. I think you are right in staying away from the teflon seals on a street engine. I really dont think they work as well in the long run as a good viton seal. The teflon seals are not very flexible, they work fine on race engines but after a while they seem to loosen up on street engines, either way they should not need replacement after only 1500 miles, I think you have other problems. By the way, I have never used a condom on the rubber seals and as far as I know have not had a problem.
Hope this helps,
Advanced Automotive Machine
1971 Chevelle "Heavy Chevy" original owner
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.