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Can one of you knowledgeable people please settle an argument?! I've always believed that cylinder 1 on a transverse engine is the one next to the timing belt, but a friend disagrees and says it's 1 to 4 from left to right where the timing belt is on the right hand side, so who is correct?
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Nearly all engines cylinder 1 is next to the timing gear, but there is an odd few designs of lumps out there where they are numbered by the manufacturer the other way round so in theory your both correct.
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There aren't any rules. It depends upon the engine manufacturer.
Most inline engines have number 1 at the free end of the crank.
I've heard that some weird French inline engines are the exact opposite. ;-)
Vee engines can also be fun.
In general, it's best just to check in the manual before starting any serious work.
Number_Cruncher
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Some Peugeot engines of the 60/70's had #1 at the flywheel end.
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Thanks guys; looks like a helping of humble pie for me then :)
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Thanks guys; looks like a helping of humble pie for me
... and your friend!
--------------
Mike Farrow
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Most "V" engines are right bank,front to back-then left bank, front to back;but I am sure there are others.
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And of course you need to take care with terms like "front" and "back".
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Some Peugeot engines of the 60/70's had #1 at the flywheel end.
A good example of French contrary logic !
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With most of my working life spent working on engines, I can say there are no general rules, older British engines tended to number from free end whilst others vice versa.
I work with one very old British built engine that is numbered from the free end, 50 Yards away is a moderen engine from the same manufacturer which is numbered from the Fly wheel!
Don't start me going on V's! some label A & B banks 1 to whatever others 1 to whatever but where No 1 is right or left I always have a look in the book first!
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