01-08-2014, 01:24 PM
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CC Member
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Join Date: Feb 2006
Location: Gore. New Zealand.,
SI
Cobra Make, Engine: DIY Coupe, F/T ,MkIV.
Posts: 808
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Wayne, you mention in post #7 that the old heads had a couple of worn guides- they wouldnt happen to have been from cyls 5&6 would they, if so the rings/bores on those cyls may be glazed, also check the stem seals those cyls & inlet rocker studs if they go thru to the port for sealant.
Leak down test 'might' help, but another way is to buy/borrow a 7mm or 10mm headed flexi lead TV camera that hooks up to your lap top, you should be able to get that down the #5 intake runner ( #6 might be a challenge with that intake manifold ), very handy tool to have these days, you can get these in thru a 14mm plug hole for a look inside the cyls as well ( just dont try it on a 'hot' motor), wish we had this stuff back in the 70's, but didnt have the $$ they were asking for borescopes back then.
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Jac Mac
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