Quick help on tq specs and coolant plug size
Thread Starter
Joined: Jun 2004
Posts: 5,125
Likes: 4
From: Alexandria, VA
Quick help on tq specs and coolant plug size Just need some quick help on a few things as I'm finishing up my head install.
I need the tq specs on the following:
- Coolant crossover bolts
- Coolant block off bolts
- Steering Knuckle bolts
- P/S pump bolts
- Spark plugs (I just tightened them pretty tight with a socket, no tq wrench used)
Also need to know what size the coolant plug is for the LQ9 heads. All I know is it's smaller than 3/8" which is the water temp tap I used when searching for the plug today... Forgot I had the passenger side head tapped larger for that sensor
I need the tq specs on the following:
- Coolant crossover bolts
- Coolant block off bolts
- Steering Knuckle bolts
- P/S pump bolts
- Spark plugs (I just tightened them pretty tight with a socket, no tq wrench used)
Also need to know what size the coolant plug is for the LQ9 heads. All I know is it's smaller than 3/8" which is the water temp tap I used when searching for the plug today... Forgot I had the passenger side head tapped larger for that sensor
The crossover/blockoff bolts I just do hand tight, I like to dab a little RTV around the gaskets if they are tweaked up. My front ones don't even have gaskets because I lost those little bastards. 
Steering knuckle needs some blue loctite, TQ specs might be on LS1howto.com up at the top, but I just got mine "sufficiently" tight. PS pump bolts are huge, I'd just tighten them "enough" and call it a day. 22 ft-lbs is probably the number lol. Spark plugs go in hand tight, plus 1/8-1/4 turn (says how to on the spark plug box).
Steering knuckle needs some blue loctite, TQ specs might be on LS1howto.com up at the top, but I just got mine "sufficiently" tight. PS pump bolts are huge, I'd just tighten them "enough" and call it a day. 22 ft-lbs is probably the number lol. Spark plugs go in hand tight, plus 1/8-1/4 turn (says how to on the spark plug box).
Thread Starter
Joined: Jun 2004
Posts: 5,125
Likes: 4
From: Alexandria, VA
I probably tightened the plugs a bit too much. Could that harm anything?
I've been using the tq specs from ls1howto but some things aren't listed, such as the steering knuckle. I've got red locktite, so I hope that works well enough.
I've been using the tq specs from ls1howto but some things aren't listed, such as the steering knuckle. I've got red locktite, so I hope that works well enough.
i would say the coolant crossover &block off will be the same as the intake.i can't remember exactly but i'm thinking around 120 inchlbs.i always go at least 1/2 turn past finger tight,i've had too many plugs come loose,and that is very irritating to be out somewhere without a socket or wrench handy
