Ole

Carl, Does ARP also make main studs (12mm) for the 32 valve?

928SS

how about timecerts for the block threads?? seems a few builders like them

Carl Fausett

Not directly for this application. But, I measure the studs and send them in and we try to cross them to another application that has the same size. Sometimes I get lucky.

I won't know until Tuesday or Wednesday.

John Veninger

Came across this today looking for something else.

GlenL

John,

Very true. But I thought Porsche had recinded that directive. (No?) Anways, doesn't everyone Loc-tite those nuts? I do. That should seal it.

John Veninger

Maybe, do you know the publication were they changed back?

GlenL

Nope. No publication forthcoming.

What is coming back to me is the smooth tones of Mr. Jim suggesting that those special nuts weren't worth the extra money if I sealed them. What's his P/N again?

A check in the PET shows the "928" series nuts being used throughout the series for the 12M studs. Ordinary nuts are in the "N" series. Lemme change that: not recinded, just not necessary.

I've got to wonder if this wasn't an attempt to keep a bit more oil and pressure going to the crank. Having coated nuts would be easier for manufacturing than gooping them one-at-a-time.

John Veninger

Wonder if some very light 571 or 518 would be in order?

Herr-Kuhn

Time sert is a great insert, much better then a heli-coil assuming you have the beef to do it.

Getting the studs out of the block (especially head studs) is not easy. It took two very strong men to remove the head stufs out of the Goldmember's block. The trick is heating the block locally where the studs are threaded in. Even then it can be brutal to get them out. 20+ years in one spot=stubborn!

There is a guy in Florida selling larger studs for the 928/944 and this requires machine work to the block.

Ole

For a discussion on last resort use of time-sert repair http://forums.pelicanparts.com/showt...highlight=time