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Engine Specific Info and Questions => IDI Engine => Topic started by: mst on March 18, 2006, 04:11:02 pm

Title: Head Studs
Post by: mst on March 18, 2006, 04:11:02 pm

In the forum/FAQ there is a mention of"Jan B's cheap head studs", anybody
have anymore informations?Raceware is not that cheap,and not in Europe! :?:

Title: Head Studs
Post by: moTthediesel on March 20, 2006, 07:37:51 am

I think that that post is refering to using industrial metric studs that can be purchased from supply houses.
I'm going to give them a try, I bought M12x1.75x140 studs from MSC Supply here in the States for about $2.50 ea.
How do they work? Well, when I get it all back together I'll let you know  :wink:
moT

Title: Head Studs
Post by: fspGTD on March 20, 2006, 05:23:42 pm

Andy2 has done some pioneering work experimenting with using 12.9 classification metric capscrews in place of head bolts.  He gives some torque readings he used in this thread:
http://www.vwdiesel.net/phpBB/viewtopic.php?t=2538

Title: Head Studs
Post by: tylernt on March 20, 2006, 08:30:17 pm

Quote from: "moTthediesel"

I bought M12x1.75x140 studs

Anybody know the thread pitch of the top (nut) end of the Raceware studs? I thought they were pretty fine to reduce the amount of torque needed to get a certain clamping force. 1.75 seems a little coarse to me... not that I know anything about this stuff.