Should I replace the head studs?

[sammyg2]

dats da ones. less than $10 each.

[KobaltBlau]

Originally posted by Bill Verburg
I'd replace them w/ 993 versions

Bill, are you referring to 993 Dilavar or the steel 993 units that chris bennet is pointing to?

[LeRoux Strydom]

Originally posted by Bill Douglas
Hey LeRoux, talking weather, what's your summer been like? Ours has been hot, dry and not much wind (not much wind for a change!). And has that last kilometer or two of open space between Pretoria and Jo'burg been built over up yet?

Bill

Summer has been great! Lots of rain up here during Dec/early Jan, then a dry spell until last weekend. Temps were mid 30's (celcius) during most of the dry spell. I spent most of December in Cape Town area, where the weather was equally good.

What open space?

LeRoux

[Bobboloo]

993 studs are Dilivar steel studs.

[sammyg2]

Dilavar is a type of stainless steel, probably either a 300 series alloy derivitive or chromium/nickel alloy that is non-magnetic.

The 993 studs I installed were not stainless steel, they were carbon steel and are definately magnetic. Same as the oem upper studs.
They were not dilavar.

[Superman]

Absolutely, positively replace them. Use plain ol' steel ones. When you remove the old ones, use an oxy/acetylene torch to heat the area up along the edge of the spigot, about a half-minute to one minute, roughly. Then they will come out fine. Don't try this without heat. Propane will not come anywhere close to the heat you will need.

[sammyg2]

I used MAPP gas when I removed mine, not as hot as acetylene but much hotter than propane or butane.
Took a little longer (several minutes per stud) but the result was all good.
If you don't have access to an oxy-acetylene torch you can buy a MAPP gas setup at home depot for around $30.
If you break a stud off flush with the case because you didn't use heat, that $30 will look like a bargain.

[Bill Douglas]

Hee hee, It was a while ago when I was in the area and Pretoria and JHB were closing in fast. I did like the goverment house gardens and (spelling) Oum Paul's house.

(spelling) Moy Blay, Bill.

[LeRoux Strydom]

The studs have been replaced with regular steel ones. The old dilivars came out easily, surpringly perhaps. Maybe the car is starting to give me a break.

Thanks for everone's advise.

Bill, it's "mooi bly", but you get 9/10 for effort.

LeRoux