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Gpz1100 a1 crank

Posted: Sun Feb 02, 2025 12:54 pm
Author: stusco
Any recommendations for crank reconditioning and welding in Scotland

Re: Gpz1100 a1 crank

Posted: Sun Feb 02, 2025 1:38 pm
Author: stusco
IMG_0995.jpeg
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What do you think a out the cams this is on the side that takes the load

Re: Gpz1100 a1 crank

Posted: Sun Feb 02, 2025 10:44 pm
Author: Al
Number 4 exhaust at least, looks to have been running with zero clearance.
How do the shells in the cam caps look?
AL

Re: Gpz1100 a1 crank

Posted: Mon Feb 03, 2025 4:40 pm
Author: stusco
Doesn’t look bad ill get a photo

Re: Gpz1100 a1 crank

Posted: Mon Feb 03, 2025 7:25 pm
Author: Al
What does the micrometer say about the diameter of those bearing journals?
Mine look infinitely worse and i just polished them with solvol to remove the roughness. Not had a single problem with that as they still measured within spec and the oil supply side is very very good and it gets changed regularly. I put new shells in (repro ones) and thats where the problems arose for me.
With regard to the base circle on the number 4 exhaust lobe; again no issue with that as it should never (never again) contact the bucket. I would be more concerned with the lift and lower ramps on the lobe itself! If that is grooved then i would say you are done with them.
AL