Re: Proper Radiator Cap Pressure Rating for 1994 Honda Accord EX?

jim beam <nospam@xxxxxxxxxxx> wrote in news:G8Kdnc0HP-
uYg1DZnZ2dnUVZ_qmdnZ2d@xxxxxxxxxxxxx:



measuring warpage is real easy. if it's warped beyond limits, take it
to the machine shop! but if it's not, don't waste the money. indeed,
/definitely/ don't waste the money because there's more to it than just
the cost - there's the effect on compression ratio and valve clearance.
machining warped heads is questionable too because of the
considerations of running a straight cam in a warped head - most head
shops won't even /attempt/ to address this.



When my head was skimmed, about .002"-.003" was taken off. My mechanic says
(at least on the B18) you can skim up to 1/16" off before you run into
valve interference and compression issues. Up to that point, you can
compensate. If you do not machine the head for warpage, there is an
increased probability of early gasket failure down the line.

However, he also tells me Honda heads rarely warp much unless badly abused,
so you rarely need to take more than a few thou off for warpage. Machining
beyond that is often done to address *corrosion*, not warpage. If the head
is badly warped on account of severe overheating, he normally advises just
to junk the engine, since head warpage is only a small part of the damage
that will have occurred.

Finally, he tells me Honda blocks are really strong. So long as they are
not severely overheated or the victim of neglected coolant changes, the
block faces are almost always well within flat tolerance.

--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
.

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