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Rocker numbering
Posted: Mon Jun 14, 2010 7:47 am
by sgray
I'm at the page in the workshop manual entitled 'Rocker Adjustment' (AA.21) and it gives me the sequence for checking the rocker clearances..
but which is No.1 rocker? - bulkhead (back) or radiator (front) of engine. I can't find anywhere that tells me.
Simon
Re: Rocker numbering
Posted: Mon Jun 14, 2010 8:05 am
by autolycus
No 1 is usually regarded as being at the front (radiator) end on a straightforward layout like a Moggy.
It is left as an exercise for the reader as to whether it makes a jot of difference in this context.
Kevin
Re: Rocker numbering
Posted: Mon Jun 14, 2010 9:25 am
by mike.perry
Adjust the rockers using the rule of 9, no 8 open adjust no 1, no 7 adjust no 2 etc.
To save turning the engine over and over, turn the engine over on the handle and whichever valve opens, adjust the opposite one. Mark the rocker with a piece of crayon and when all the rockers are marked you have finished. Then go along the rockers and check each lock nut is tight.
Re: Rocker numbering
Posted: Mon Jun 14, 2010 12:41 pm
by sgray
Yes I can see why it might be a moot point.
and cylinders - are they normally number from the front too ? It's just the garage said No2 had low compression and now I have the old head on the bench I can take a look at the valves.
Re: Rocker numbering
Posted: Mon Jun 14, 2010 12:48 pm
by MColes
Cylinders are the same - number 1 at radiator (front) end.