My new engine a 125

[kitepaulx2]

Got a new engine and fired it up started very well so happy with that.

Not sure the prop is right, intact dead sure its a wrong un... any thoughts anybody have what I need, or does a century plus prop fit?

[Charles uk]

That is a 125 prop, no other prop will fit & work without changing the prop shaft, and Seagull did not make another prop suitable for this powerhead.

Did you check the big end?

[kitepaulx2]

So no spring just a split pin then?

[Charles uk]

Look at the inside of the prop it's got a rubber cushion hub, can't remember if it has a sheerpin as I scrapped my one as it had a dead big end.

[Oyster 49]

Those engines are very prone to big end caps failing I believe. Suggest you heed CharlesUK's advice re the big end.

Don't rev it hard in neutral, or the big end could let go. You might be able to obtain a replacement big end cap of you ask around, as a few people have made them I believe?

[Horsley-Anarak]

Don't rev it hard in neutral, or the big end could let go. You might be able to obtain a replacement big end cap of you ask around, as a few people have made them I believe?

Post some pictures kitepaul we all like a few pictures.

H-A

[Niander101]

[quote="Oyster 49"]

Don't rev it hard in neutral quote]

Good advice with any engine!

[Charles uk]

That's a red line at 4250 maximum if the standard big end & crank journal is in perfect condition.

[kitepaulx2]

Ok no drive, have pulled the engine over with prop engaged but it does not turn any thoughts before i have the gear box apart?

Seams like there is no drive to the prop, HELP...


Horsley-Anarak, what sort of pictures are you looking for?

[Charles uk]

Turn the prop by hand does the prop shaft move?

[Stelios_Rjk]

Critical question! It had happened twice to me, tried to turn the flywheel in vain. Luckily the first engine had sucked ropes that had stuck under the pump rotor and the second had a so rusted drive shaft that it had swollen and stuck in the shaft's housing


Are those bronze big end caps obtainable?

[kitepaulx2]

Yes prop turns just seams no connection between the two, like its out of gear?

[1650bullet]

Yes prop turns just seams no connection between the two, like its out of gear?

Does the prop turn on the prop shaft. eg; if your turning the prop, does the prop shaft turn with it. Or is it still.

[Stelios_Rjk]

Pictures please!

[kitepaulx2]

It has begun, took a while but at last have started to strip/look for the broken bits.

Drive shaft is oil all drained (was not much in there)

Can't get a further need the correct size allen key and rest of bolts/screws seized, so all sprayed with wd40.....