AVCS Cracked Heads Any Good to Use/repair?
#1
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AVCS Cracked Heads Any Good to Use/repair?
Hi Guys
I've got a pair of AVCS heads which have the usual cracks across the spark plug webs
Are people using the heads like this?
Is there a robust/cost effective fix available?
Cheers
I've got a pair of AVCS heads which have the usual cracks across the spark plug webs
Are people using the heads like this?
Is there a robust/cost effective fix available?
Cheers
#2
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Depends how far up the spark plug threads the cracks go, my rule of thumb is if you can see 4 threads cracked, it usually, when crack tested go 2 or 3 more they would be ok for a std replacement, but not used for a fresh big power build, if they are cracked valve seat to valve seat, there scrap.
To repair would involve removing all valve seats, weld, re machine valve seat locations & re drill & rethread spark plug location & new valve seats, very expensive & time consuming.
I am actually weighing in 8 pairs of 2.0 avcs heads tomorrow for the above reasons, xmas scrap bonus.
To repair would involve removing all valve seats, weld, re machine valve seat locations & re drill & rethread spark plug location & new valve seats, very expensive & time consuming.
I am actually weighing in 8 pairs of 2.0 avcs heads tomorrow for the above reasons, xmas scrap bonus.
Last edited by MOTORS S GT; 17 December 2015 at 06:28 PM.
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02 December 2015 02:22 PM