...on my last but one trip out with my 40+, I noticed oil and bubbles leaking out of the crankcase joint by the tiller.
On my return i tightened the four bolt as much as I dared, but on my last trip out it was still leaking. Albeit a tad less.
Could you learned Gents give me a blow by blow account of how to get the crankcase off and separated so I can get some silicon gasket between the halves.
P.S. I do have a manual, but it doesn't tell much about removing the crankcase.
Thanks in advance.
Crankcase leaking oil....
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Crankcase leaking oil....
Me? I'm perfectly balanced...got a chip on both shoulders!
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woodbutchergraham
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Re: Crankcase leaking oil....
Personally i wouldn’t strip down just yet, ease the studs around the joint on the crank case. Scrub clean the joint and smear with clear silicone or instant gasket leave to semi set and then tighten the nuts try that. If all else fails you may have to strip it!
Life is what you make it, and what you make could change your life.
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Charles uk
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Re: Crankcase leaking oil....
There is another way, what's happened to your motor is that it's fallen over or been thumped around the tiller arm boss, slightly twisting that area of the crankcase.
Take a good center punch & punch a series of punches 5mm from the weeping seam area on both halves if possible about 5mm apart.
Now start the engine, most of the bubbles should have stopped, you can give it another tap where it's still leaking, whilst it's still running, but not too hard.
If this doesn't fix it, it's a strip down, flatten off both faces & RTV silicon.
Take a good center punch & punch a series of punches 5mm from the weeping seam area on both halves if possible about 5mm apart.
Now start the engine, most of the bubbles should have stopped, you can give it another tap where it's still leaking, whilst it's still running, but not too hard.
If this doesn't fix it, it's a strip down, flatten off both faces & RTV silicon.
Make it idiot proof and someone will make a better idiot.
Re: Crankcase leaking oil....
If I loosen the 4 studs, will I be able to open the joint enough to get any silcon gasket in there, what gap would I expect to see?woodbutchergraham wrote:Personally i wouldn’t strip down just yet, ease the studs around the joint on the crank case. Scrub clean the joint and smear with clear silicone or instant gasket leave to semi set and then tighten the nuts try that. If all else fails you may have to strip it!
Thanks for the help.
Charles... The engine hasn't fallen or gotten knocked at all, and has been fine. I might try the centre punch first. I'll keep you posted.
Me? I'm perfectly balanced...got a chip on both shoulders!
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Horsley-Anarak
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- Location: Surrey
Re: Crankcase leaking oil....
I would not try a centre punch. I have had alot of success with a flat screwdriver blade and a small hammer.
All you need if a few little taps along the join line, normaliy where the tiller bit sticks out on the lower half of the crankcase.
On some of the engines I have taken apart I could see that they have had this treatment, I have been told it was a factory fix.
This method I have also seen used in the steam traction engine world with new or repaired boilers.
Big lump hammer an chisel where the boiler plates meet.
H-A
All you need if a few little taps along the join line, normaliy where the tiller bit sticks out on the lower half of the crankcase.
On some of the engines I have taken apart I could see that they have had this treatment, I have been told it was a factory fix.
This method I have also seen used in the steam traction engine world with new or repaired boilers.
Big lump hammer an chisel where the boiler plates meet.
H-A