oops....gasser head bolts used on 81 1.6 NA - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.
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oops....gasser head bolts used on 81 1.6 NA by 78sharpshooter on 06 May, 2010 12:42
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Guy at napa matched my old head bolts and after getting everything back together and killing time on this forum I saw that this is a no no. I have 8 of the old head bolts (chopped and slotted 2 to hold the gasket on when putting the head back on). I have only warmed up the engine and have not driven it yet so would it be wise to replace the head studs with the original ones doing it one at a time?
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#1 by Mark(The Miser)UK on 07 May, 2010 02:28
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Guy at napa matched my old head bolts and after getting everything back together and killing time on this forum I saw that this is a no no. I have 8 of the old head bolts (chopped and slotted 2 to hold the gasket on when putting the head back on). I have only warmed up the engine and have not driven it yet so would it be wise to replace the head studs with the original ones doing it one at a time?
M11 gasser bolts are 2mm longer than the diesel ones.
I suspect that this 'swap' may have been the cause of at least some 'block death'
I don't know how deep the block holes are on early blocks, but M12 holes with stretch facility' are only about 2 turns from bottoming out
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#2 by maxfax on 07 May, 2010 03:10
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The holes are plenty deep for the gasser head bolts.. The worry would be whether they and/or the block are strong enough. The gasser bolts are stretch bolts so they require a different torque procedure.. I think the spec is 54 ft/lbs plus one quarter turn.. I'd be a bit leary of the block cracking on that last quarter turn.. I have heard a few claims of the gasser bolts working okay.. Seems like I get one of these engines in front of me with gasser bolts, the reason I have it is because the HG failed and/or the block is cracked...