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MG MGB Technical - valve settings on a piper 270 cam

Just a quickie i guess the valve settings should be 15 thou cold does the same apply for a new cam (piper 270)... Oh and if anyone in the uk wants a free click adjust just drop me a mail. spanner and srewdriver was so much easier this is a nice looking piece of kit but not for me or maybe a swap for something !

Regards
Richard H
Richard H

Richard-
For the Piper 270 the Intake Valve Clearance is .014”/.35mm, and the Exhaust Valve Clearance is .016”/.40mm.
Steve S.

Richard,

I bought a Delta KB grind, which I think is similar to the Piper 270. I was told I could go with 0.014 / 0.014 or I could go with 0.014 in and 0.016 ex. YMMV.

Charley
C R Huff

Are these hot or cold sizes
Thanks
Richard H
Richard H

Richard-
These setings are to be done with the engine cold.
Steve S.

Richard,

I bought and fitted a Piper HR270 this time last year and still have the installation data if you want a copy.

Valve clearances are 12thou inlet and 14 thou exhaust (set cold).

George
G Boath

Thanks for your advice that clears that one up nicely, thanks for the offer George should be ok now
Regards
Richard H
Richard H

FWIW on my Piper cam the spec sheet didn't specify hot or cold, so just to be sure I called Piper and was told that all of their spec sheet clearances are for HOT engines. I called them again in case someone had got it mixed up the first time and was given the same answer.
Steve Postins

So steve just to confirm 12thou inlet, and 14 thou outlet, set with engine hot, on an 1860 engine.

Regards
Richard H
Richard H

Just an update just found out my cam is a piper bp270 the settings should be 14 thou inlet 16 thou exhaust set hot ...thanks all and this should clear things up for any future searches in the archives

Kind regards
Richard H
Ps still no takers for a free click adjust should i be surprised !
Richard H

This thread was discussed between 13/01/2008 and 18/01/2008

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