Big Dave

QUESTION 1: I think I've located the source of an oil leak I've been experiencing since I replaced a damaged cylinder head: the front bearing cap (the one that covers the length of the cylinder head at the front of the head). Instead of using the Porsche-recommended Loctite 574 to mate the bearing cap surface to the head, I used Permatex. I suppose I might not have used enough, but instead of taking a chance again, I'd like to be sure I use an appropriate sealant when I pull it apart again.

However, no one seems to carry Loctite 574 in any local stores. Does Loctite still make the 574 product, or has it been replaced with a different number?

Has anyone used an alternative that works as well as Loctite 574?

QUESTION 2: If anyone has their timing covers off on a 32v car, can the bolt on the front of the bearing cap be accessed through the hole in the cam gear? I don't want to pull off the timing belt and cam gear if I don't have to.

TIA,

BD

SeanR

I had to have Roger order my the 574, don't recall where he got it from, I think from one of the suppliers he regularly uses.

As to the 2nd part, I think you will have to pull the belt/cam gear on that side. I don't have one apart right now to be certain, but I think so.

Jim Morton

For those cam / head bearing caps, I have used Curil-T with good success.

It's a little more common than Loctite 574, but still intended for machined metal to metal toleranced connections.

blown 87

A company called "Fastenall" can get it for you, nation wide.

But then so can any of the 928 parts folks.

AO

I used Permatex's "The Right Stuff" with great succes on both my GT and the '87. Use sparingly and make sure surfaces are super clean.

Mrmerlin

I would suggest to use the 574 loctite use a razor blade held perpendicular to the surface to clean both of the mating surfaces.
I think that the cam pulley needs to be removed to get that 10mm bolt out This bolt holds the cam cover rear housing to the cam cap

6.0-928S

Volvo uses the same stuff except it's red. PN 1161059. Available at any Volvo dealer.

Regards, Hammer

blown 87

Feels a bit different to me, same for the MB stuff, may just be in my head though.

blown 87

I personally think that any kind of RTV has no place on a Porsche motor.

To each their own I guess, some how it always seems to end up in the oil pick up and in the oil passageways.

Seems like every time I say that to some one they bring up the cam cover gaskets, my reply is Hylomar.

AO

"The right stuff" is not RTV. It is an elatomeric rubber - not to different from hondabond. I might be nit-picking, because I understand your point, but in this application, if a small piece were to come loose, it would make its way to the sump and sit there harmlessly.

The Loctite 574 is an anerobic sealant - that means it cures in the absence of air. Permatex makes a similar product called Flange Sealant. Should work just as well as the loctite product if you really want to go for that. Might be easier to find as well.

blown 87

You might want to do some research on that.

Imo000

I used regular RTV but very littel and very thinly spread, staying away from the edges or any oil passages by at least a couple mm. This way when the excess gets squeezed, it won't go past the two mating surfaces. And it won't end up in the oil and eventually in the pick up screen.

Bill Ball

928 Intl sells 574 as well.

http://www.mailordercentral.com/928i...asp?number=000 043 010 00

Imo000

When I went to get one locally, the distributor told me that 574 has a very limited shelf life and no one in Ontario storcks one because of it.

Big Dave

Thanks for the replies. Does anyone else have input on the second part: whether the front bolt for the bearing cap can be accessed through the hole in the cam gear?