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Just a hone needed?

PostPosted: Wed Mar 04, 2015 9:02 pm
by jonno
Just stripped down top end and found this.The hatching marks have worn away in parts of the cylinder,and looks like evidence of tightness on the piston.Would a deglaze with one of the 3 pronged deglazing tool be sufficient to bring things back or would it need a hone?


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Re: Just a hone needed?

PostPosted: Wed Mar 04, 2015 11:23 pm
by Donnie
evidence of a light seizure would be more likely :-( Whats teh piston to bore clearance??

Re: Just a hone needed?

PostPosted: Thu Mar 05, 2015 11:36 am
by Knowledge
Nice porting. Is it your own work?

Re: Just a hone needed?

PostPosted: Thu Mar 05, 2015 5:54 pm
by jonno
No Knowledge its an MB tuned TS1 240,sprint motor.Done in 2000.34 hp.This is why I need the advise to keep cost down if it needs a lot doing as in rebore etc.

Re: Just a hone needed?

PostPosted: Thu Mar 05, 2015 5:57 pm
by jonno
Donnie the clearance is ok had it checked a while ago.May be heat seize.Its from my sprinter,prob got too hot waiting in line,but surprised the hatching has gone.

Re: Just a hone needed?

PostPosted: Thu Mar 05, 2015 9:56 pm
by coaster
That looks more like scoring from grit particles being digested....dusty paddock maybe?

Re: Just a hone needed?

PostPosted: Sat Mar 07, 2015 3:04 pm
by jonno
Possibly as I run an open carb coaster.So whats the best course of action,a few runs of a deglazing tool and clean up the piston with emery paper?