Bat21
Well-Known Member
My small 2 stroke outboard no longer seems to pump cooling water. Do any of you know where the impeller is located and how to go about changing it?
Suzuki DT2.2
- Thread starter Bat21
- Start date
oilyrag
Well-Known Member
simple job - remove split pin and take prop off. If it has never been off it might be stuck on the shaft but a bit of light tapping and levering will free it. undo 2 x 10mm bolts on gearbox, lift off cover plate and there it is.
If the impeller looks ok it could be blocked cooling channels in the head which is a slightly bigger job although not difficult.
If the impeller looks ok it could be blocked cooling channels in the head which is a slightly bigger job although not difficult.
Bat21
Well-Known Member
Excellent, thanks for that, if spares are required, do you know any sources?
longjohnsilver
Well-Known Member
I'd put money on the tell tale being blocked, try poking with some thin flexible wire. A very common fault on small o/bs. Otherwise as already said it's the cooling channels, head off and clean out. Easy but obviously new gasket needed.
I'd bet it's not the impellor.
I'd bet it's not the impellor.
ThereAndBack
Well-Known Member
Like other posters here, I suspect you will find it is the cooling channels in the cylinder head that are blocked. They are small and easily clog-up with salt/sand.
It is a fairly straightforward job to clean them - I did mine recently and (fortunately) was able to re-use the head gasket.
It is possible that there is a blockage in the cooling feed pipe which runs up inside the leg, but not very likely, IMO.
There is a wealth of information here: http://store.brownspoint.com/.
Good luck
Alan
It is a fairly straightforward job to clean them - I did mine recently and (fortunately) was able to re-use the head gasket.
It is possible that there is a blockage in the cooling feed pipe which runs up inside the leg, but not very likely, IMO.
There is a wealth of information here: http://store.brownspoint.com/.
Good luck
Alan
Rooster
Well-Known Member
Heckler
Well-Known Member
on the suzuki the exhaust channels block up easy, undo the bolts that hold the leg on and its all there.
Stu
Stu
Bat21
Well-Known Member
/forums/images/graemlins/smirk.gif
Thanks to you all.
As you said simple jobs, about half an hour in all.
Impeller was ok, a little salt in the cylinder head waterways was all I found. Running ok now, think I got away without a
new head gasket. I guess this is all due to short runs and stowing in a locker instead of on the rail.
Thanks to you all.
As you said simple jobs, about half an hour in all.
Impeller was ok, a little salt in the cylinder head waterways was all I found. Running ok now, think I got away without a
new head gasket. I guess this is all due to short runs and stowing in a locker instead of on the rail.