G11 smoking on RH pot

Information relating to the Matchless G11 or AJS Model 30 600cc twin
alanengineer
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Re: G11 smoking on RH pot

Post by alanengineer »

I brought a 500 twin cheap last year because one side smoked. It had recently been rebuilt, ie less than 200 miles. I was going to rebuild it when I found some bench space. So, should I let it smoke or pull it to bits.
I have lots of bits already!.
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saltbox alf
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Re: G11 smoking on RH pot

Post by saltbox alf »

If you can still see behind you , run it, or as I have just though and posted on another topic, perhaps it's got a bust ring?
Allons-y, amis de Matchless et AJS
alanengineer
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Re: G11 smoking on RH pot

Post by alanengineer »

It seems sense to take the heads of to install the engine in the frames, so I will have a look then. I have seen some heavy handed people playing with piston rings, so nothing will surprise me.
Need some bench space first, maybe the summer when we are moaning about the drought!.
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robcurrie
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Re: G11 smoking on RH pot

Post by robcurrie »

saltbox alf wrote:
My LH pot smokes a bit - does that mean I'm riding on the wrong side of the road??????
:lol: :roll: :lol: :roll: :rofl:
Is the engine in the frame the correct way round? :rofl:
Alan, did you remember to turn yours around when you drove back to France?
JEAN-NOEL
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Re: G11 smoking on RH pot

Post by JEAN-NOEL »

Hi all,
there are many topics on lubrication problems on early twins.
Often the right side of the engine is full of oïl, and left side is under oiled = seizure on left piston, conrod breakage on drive side.
Also mettering plugs in the right head could be culprit ?
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saltbox alf
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Re: G11 smoking on RH pot

Post by saltbox alf »

Alan, did you remember to turn yours around when you drove back to France?
:o No, but I had no problems , apart from avoiding oncoming cars :rofl:

Back to G11s etc, If they are smoking to an extent where you worry, only one answer :headbang: close inspection after strip down!!
Allons-y, amis de Matchless et AJS
g80csp11
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Re: G11 smoking on RH pot

Post by g80csp11 »

Thanks for the helpful tips , all a great help in solving the problem :headbang:
I was thinking along the lines of over oiling to the LHS
certainly with the rockers covers off , there was more oil on that side , although getting to both
Restrictors on all heads , perhaps a smaller restrictor on LHS might help . it would have been much easier if AMC had added adjustable oil way restrictors to the heads
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