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HT4100 engine

07-12-2007, 01:20 AM
I live in Bulgaria and just bought a Cadillac Eldorado 1983 with HT4100 engine. A very rare car for ths region. The engine of my car is dismantled and the head gaskets repaced. Unfortunately my technican do not know the exact torch that is reccomended for the bolts on the head. At least you may know where I can find such data in the web.
Urgent help needed.

07-12-2007, 06:17 AM
Welcome to AF. has an online manual for a 1 year subscription is about 25.00

07-15-2007, 03:54 AM
I already bought a manual but it's not shipped yet.
Torque spec is needed urgently. So is the sequence of tensioning.

07-15-2007, 06:53 AM
From the '93 4.9 manual for any help it may offer...

6 3 1 4 5 Inboard bolts

10 7 2 8 9 Outboard bolts

-Apply camshaft and lifter pre-lube, GM #1052356 or equivalent to all head bolts
-Tighten in sequence shown above to 50 Nm (38 lbs. ft.)
-Tighten again in same sequence to 90 Nm. (68 lbs. ft.)
-Tighten bolts 1,3, and 4 to 120 Nm. (90 lbs. ft.)

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