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#1
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Valve covers
Oliver,
You advised me to use an original set of valve covers. Why is that? I always believed that strong aluminium valve covers (with additional fins) would cool the heads a little bit extra, the groove in the sealing area and the 2 or 4 bolt attachment would seal the cover better to the head and they would also dampen the valve train noise a bit better than the original ones. Thanks, Walter |
#2
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bolt-up valve covers have proved to be nothing but a pain in the a$$ in my experience. they rarely seal as well as a good stock cover, ive seen them crack around the bolt holes when torqued up to spec, and i also dont like the idea of putting extra stress on the rocker studs.
maybe oliver has different reasons, but those are mine! ![]() |
#3
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Well, the only problem I always encounter is the sealing around the boltholes. I solved this by tossing the original o-rings away, which are always of the wrong (cheap) material. Instead I made my own copper rings because the ones I can buy are just too thin.
The extra cooling aluminum valvecovers give is not for the heat coming from the head but from the oil in the head which has a better way of giving off its heat through the valvecovers. If the grooves would also be on the inside of the covers the effect would be even greater due to its bigger surface. So far they always worked for me and never leaked. cheers, Richard |
#4
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I'm also using the clip-ons. Had Empi's. All they did was leak. The seals they give you suck too. As an added bonus, the stocks give you that "sleeper" look.
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Julian '74 Super "If you are under control you're going too slow" - Parnelli Jones |
#5
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Thanks, "Speeding Around and about Las Vegas" SPEEDY57TUB |
#6
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...
I recommend the originals for the same reasons, that Bren wrote down. There are aluminum covers, that are working, e.g. I use Type 1 & 4 covers from Remmele, the Type 1 covers from CSP are also pretty fine, the aluminum covers from Eurorace work good, too, but only with minor rework on the bolt-sealing. The originals are just the best because, they fit, last, stay tight and seal correctly! It's just a matter of pricing and room, on most Type 4's in beetles is no room for aluminum covers.
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#7
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I've seen several aluminums Type 4 valve covers that are warped, and need truing up. Also the aluminum hex that the cover bolts into can strip out if you adjust the valves alot.
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