Gezzer
Member
I have an elderly (1974) Petter AB1WM single cylinder engine in my hurley 24, I have got never really got on with this engine but I think it has a problem, and having the throttle cable snap today when reversing out of marina berth, leaving me beam on to wind and no power, and SWMBO hopping from bathing platform to bathing platform fending me off while I wedged into a vacant berth has not helped my dislike for engine.
Did'nt hit anthing though.
1.It is difficult to start from cold and generally needs priming with a dose of oil in the primer.
2. When it does start it picks up revs very slowly (even in nuetral) needing at least 20 -25 seconds (sometimes longer) to get up to cruising or max revs. when it gets to revs however it will happily stay there all day, even when warm the slow rev pickup does not get any better.
3. a general lack of power (and when you only have 5.5 hp to start with it really shows).
I am loathe to change engine for something like a new Yanmar although this would be best thing to do, as I will only be keeping the boat for this season and although in excellent condition I don't think it would increase the boats resale value by much if anything.
So anybody got any ideas on problem before I start pulling thigs apart, and hair out trying to find spares etc
my thoughts are low compression
Exhaust blockage although the fact that the engine will run at high revs seems to counter this
The propshaft runs freely and can be easily turned by hand, the engine does not smoke excessively, bit of blue until warm and a small amount of black when working hard
Many thanks and any thoughts appreciated
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Did'nt hit anthing though.
1.It is difficult to start from cold and generally needs priming with a dose of oil in the primer.
2. When it does start it picks up revs very slowly (even in nuetral) needing at least 20 -25 seconds (sometimes longer) to get up to cruising or max revs. when it gets to revs however it will happily stay there all day, even when warm the slow rev pickup does not get any better.
3. a general lack of power (and when you only have 5.5 hp to start with it really shows).
I am loathe to change engine for something like a new Yanmar although this would be best thing to do, as I will only be keeping the boat for this season and although in excellent condition I don't think it would increase the boats resale value by much if anything.
So anybody got any ideas on problem before I start pulling thigs apart, and hair out trying to find spares etc
my thoughts are low compression
Exhaust blockage although the fact that the engine will run at high revs seems to counter this
The propshaft runs freely and can be easily turned by hand, the engine does not smoke excessively, bit of blue until warm and a small amount of black when working hard
Many thanks and any thoughts appreciated
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