 Can I reuse my unheat cycled MLS 7afte head gasket? |
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 Mar 19, 2012 - 6:22 PM
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Enthusiast  Joined Sep 23, '09 From Dartford Kent Currently Offline Reputation: 0 (0%)  |
So basically my head gasket went, while changing it I popped in some ARP studs, cleaned the mating faces and popped in a new gasket.
The new head torqued down fine, but when I torqued in a camshaft it snapped!! My head is warped it would appear, I don't have a straight edge so I took a chance and lost; but I digress. My question is: As my MLS gasket has not been heat cycled is it safe to reuse assuming it comes off clean? |
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Mar 19, 2012 - 10:27 PM
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Enthusiast Joined Dec 8, '03 From Lancaster CA Currently Offline Reputation: 6 (100%) |
just because the camshaft broke does not mean the head is warped. did you torque the camshaft in the right order? you might have had a valve pushing against a piston. you are supposed to move the crankshaft so that none of the pistons are at the top. but if that is what happened, you might have to pull the head anyway because you probably bent those valves
-------------------- 2001 Celica GT-S Turbo
1997 Supra TT 6speed 1997 Celica 3MZ/1MZ swap 1990 Celica All-Trac |
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Mar 19, 2012 - 10:47 PM
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 Enthusiast Joined Nov 12, '02 From Webster Ma. Currently Offline Reputation: 1 (100%) |
i thought the 7a was non interference meaning the valves will never touch the pistons. so no bending.
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Mar 20, 2012 - 12:13 AM
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 Enthusiast Joined May 3, '11 From Ohio Currently Offline Reputation: 8 (100%) |
QUOTE (x_itchy_b_x @ Mar 19, 2012 - 10:47 PM)  i thought the 7a was non interference meaning the valves will never touch the pistons. so no bending. This^ --------------------  |
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Mar 20, 2012 - 9:15 AM
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Enthusiast Joined Dec 8, '03 From Lancaster CA Currently Offline Reputation: 6 (100%) |
im not 100% sure on that. im just speculating on what happened
-------------------- 2001 Celica GT-S Turbo
1997 Supra TT 6speed 1997 Celica 3MZ/1MZ swap 1990 Celica All-Trac |
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Mar 20, 2012 - 1:52 PM
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Enthusiast Joined Sep 23, '09 From Dartford Kent Currently Offline Reputation: 0 (0%) |
7A is non interference, and cams were torqued in correct order.
Considering the coolant level was half way down the block water jacket, I'd say the head is pretty toasted so there's a pretty good guess there. Back to the reusable gasket question please xD |
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Mar 20, 2012 - 2:00 PM
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Enthusiast Joined May 16, '10 From Raleigh Currently Offline Reputation: 12 (100%) |
Short answer: Yes.
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