Reply With QuoteI've just done my hg and never had the head skimed and its been fine. Like yours my hg never went just changed it as I had cam and turbo off etc. to clean every thing I just used break and clutch cleaner
Whats the rule with skimming heads when they they come
off engines that havent been cooked or blown the hg on?
If no warping is suspected and the surface is pretty flat is there
any need to remove any material or is it just good belt and braces
practice to skim off a few thou?
Also whats best for cleaning up the top of the block and
pistons whilst the heads off?
I've just done my hg and never had the head skimed and its been fine. Like yours my hg never went just changed it as I had cam and turbo off etc. to clean every thing I just used break and clutch cleaner
You shouldn't need to skim it, but check for cracks, they are hard to see.
Thanks guys.no wont have it skimmed then now.i didn't
see the point tbh but best to check.as the hg was fine i mite
as well renew the water pump casing to block gasket cos there
is no obvious place where ive been losing some coolant slowly
(max to min every 2 weeks).......ive read up on cams and i think
a couple of my lobes are egg shaped unlike the others which are
more pointed.car ran fine if a bit tappy so again i reckon the
cams still ok.......looking forward to the rebuild now.
remember to look for cracks! iv had 8 gt3 cylinder heads, 7 of them were cracked, the only one which wasnt was the one from minimanics 40k gt3 which got sold to Rachel
Ill ask the machinists to examine it for cracks before they do
Anything else.too some photos before it was collected so i can
have a cursory look.
sounds like your cam is badly worn, ideal time to upgrade,
did you undo the head bolts in the correct order?
Yeah correct order.got another cam with only one lobe slightly
egg shaped.well not as pointy as the others.on the inlet
valve for no.1 cylinder.
if anyone knows of a good machine shop in birmingham let me know. somewhere that does spark erosion. i was going to take the head to cylinder head services in Bilston but this is the one thing they dont do. looking really for a one stop shop.
I have a good 1600 cam with no worn lobes if your after abit of a upgrade
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