Emergency! Dropped nut :(

[Rising]

So you don't even use studs? I've thought about that.. but wouldn't it be harder to line the gasket and cover up? And if you over torque you would destroy your head instead of a stud... Hmmm.



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[Rising]

You don't keep the old studs so just take them off with vice grips.
 If they are turning hard you will need to smack them on the end with a hammer to loosen them up, you do not want to break one.

 Nooow, I don't use the shoulderless studs that come with the rubber gasket.
 Many people have had problems with the nut hitting the bald spot before the valve cover is tightened down. The G60 valve cover the rubber valve cover gasket was used on is thicker.
 I get allen head set screws fully threaded, no bald spot and use blue lock tite to set them in.

i use oil pan bolts with the allen head, AND 10mm head...

You are a genius ror.  I don't know why I ever doubted. Got a set of m6x1.0x20mm Allen head bolts and it was sooo much easier getting the valve cover back on. That's a far better system. Tightened down with new gasket. Not leaking except by the little half moon plug thing... Seems to seep a bit. Have to check that out...

Thanks guys!

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[theman53]

I would get longer socket heads as you are threading into aluminum and the whole point of the studs is that they are fully into the aluminum when you tighten. 20mm with gasket thickness and VC thickness maybe too shallow for most of the holes. IIRC most are through holes anyway, so if they are long it isn't a big deal.

[Rising]

Yeah I thought about going longer on the other stud holes but the 20mm is almost too long for the corner holes so I figure the rest are fine. I really thought the corner studs would bottom out... I almost went back and got 17mm for the back two.

I didn't realize they were straight through till I already had measured and bought the 20mm...

If i take it off again I'll put 25mm in all but those two when I take it apart. 25mm is definitely too long for the back two corners. The valve cover would be loose.

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[theman53]

I think washers are better than not being fully threaded. The aluminum is not the best for holding threads especially when they are not all being used. I put 35mm socket set screws in mine and with the nylon lock nut it is about flush. I also have a G60 valve cover that is thicker so it may not be needed for the stamped steel.

[bajacalal]

So you don't even use studs? I've thought about that.. but wouldn't it be harder to line the gasket and cover up? And if you over torque you would destroy your head instead of a stud... Hmmm.



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Use the 1 piece rubber gasket and the attached "half moon" at the end holds it in the right place. Also, put some silicone under the half moon and on the front, on top of the front seal carrier under the rubber, and it won't leak there. If you over torque a tiny 6 mm valve cover bolt to the point you damage the aluminum head, you become an honorary member of the ID 10 T club, you're supposed to be gentile with them.

[8v-of-fury]

They are like 18 in.lbs (wild guess) aren't they? lmao

[CRSMP5]

i have never seen a nut able to get to the shouldered part of the stud when screwed down as the metal rings in the rubber vc gasket is thicker...

i rember the days they used cork gaskets and those studs... no way a rubber one can get that flat... not possible... unless your using some crap non factory stud... that i bet is those stories issue was...

[Rising]

I'll try a touch of silicone spray on those spots. Yeah I figure I'm supposed to be gentle. But if the man is worried about two threads not engaging in the aluminum I can see the advantage of studs being a replaceable item to strip vs. Screwing into the head...

I guess it just makes sense why they did it that way from the factory is all I'm saying.

But the socket cap screws worked great...


The man: I like the washer idea. I could fine tune it a bit. I'll check protrusion from the bottom of the holes tomorrow and see how close 20mm is to engaging fully. It has to be close. But it may be worth it to go to 25mm and washers. (I know 35mm would be like way too long on this stamped steel cover..)

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[theman53]

I have had the privilege of working with some heads that were not new. In the 25 years prior to me owning them someone must have went to 66ft/lbs and a 1/4 turn. If you have a virgin head and/or have better luck with used stuff do whatever, but there are only about 7 threads in the head to begin with I prefer to have all engaged.

[Rising]

Yeah I'm with the program now you really only have to worry about correct length on the back two corners. So I'll do those up with washers and the rest I'll just let them hang out the bottom.

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[bajacalal]

I'll try a touch of silicone spray on those spots. Yeah I figure I'm supposed to be gentle. But if the man is worried about two threads not engaging in the aluminum I can see the advantage of studs being a replaceable item to strip vs. Screwing into the head...

I meant the silicone gasket sealer RTV not the silicone lubricant... I don't know if there is a spray sealant, but a bead under the 1/2 moon and under the rubber band that goes on the front side and (ideally) neither will come off or leak, even when you remove/replace the valve cover a few times.