Internal Sump Blockage
- Thread starter Dirt2Oil
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Dirt2Oil said:
As I said, could be, but you need to look closely as the '6' is only an etch mark. How wide are the rollers?
Dirt2Oil said:
The 6 would signify that it's a 'Superblend'.
stop-before-crank-destruction-t20048.html
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Right , now I see the faded "6".
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Dirt2Oil said:
Unfortunately, the website containing the "beltdriveman notes" regarding the 'MRJA' bearings appears to be inaccessible at present, but here is the relevant section quoted from a BritBike forum discussion:
http://www.britbike.com/forums/ubbthrea ... #Post66379
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L.A.B. I found a lot of the bearing history-issues in Capt Norton Notes so part the reason I question the common opinion that bearing upgrades is mainly what saved Combat engine lives. So what does your reference imply about factory Combat bearings being a life limiter? Both my Combats were hard run before me for decades yet still had good bearings, same as others have reported here restoring unbroken but long stored Combats.
Peel's non superduper 11 baller now inside Wes's '71,
Peel's non superduper 11 baller now inside Wes's '71,
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- Sep 18, 2012
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Well I have been reading all I could find regarding the bearings. I have decided to leave things alone, do the drilling and start putting things back together. I will take my chances with the MRJA30 and pretend someone got tired of etching the 6 onto the bearings. 
The issues of getting the bearings off and not damaging the shoulder of the crank, since I do not currently have the proper tools, and the new ones on properly just don't seem worth the effort for the way I intend to ride the bike.
I will be mindful to listen for any rumblings and when they occur deal with it then.
Will post some more pictures when the drilling is done, but I an into a long stretch of shifts at work now so it will be a little while.
The issues of getting the bearings off and not damaging the shoulder of the crank, since I do not currently have the proper tools, and the new ones on properly just don't seem worth the effort for the way I intend to ride the bike.
I will be mindful to listen for any rumblings and when they occur deal with it then.
Will post some more pictures when the drilling is done, but I an into a long stretch of shifts at work now so it will be a little while.
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- Sep 18, 2012
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- 46
Well it has been a little while now and everything is ready to start putting the pieces back together.
I drilled the new hole in the TS and had all the extra holes welded. I was more patient than normal and waited until I found someone to do the welding, was nervous plugging the holes with grub screws.
All the welded holes and the new drilled hole. I had the hole for the breather in the 850 timing side welded as well.
A view from the inside
The barrels were stripped and freshly painted
The breather valve from CNW
So time to put things together and get ready for the spring. I am really looking forward to getting a real ride on this bike.
I drilled the new hole in the TS and had all the extra holes welded. I was more patient than normal and waited until I found someone to do the welding, was nervous plugging the holes with grub screws.
All the welded holes and the new drilled hole. I had the hole for the breather in the 850 timing side welded as well.
A view from the inside
The barrels were stripped and freshly painted
The breather valve from CNW
So time to put things together and get ready for the spring. I am really looking forward to getting a real ride on this bike.
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