safeT1st
ArboristSite Operative
Here's the situation ;
I have been pulling wrenchs for many years but have little 2 cycle engine assembly experience . I have stripped an old Poulan XXV down to the ground and collected the parts required for a proper rebuild ( restoration) . I have glass beaded and masked the parts in preperation for primer and original paint scheme . My son and I will assembly this saw together as he is in power mechanics and shows an interest and aptitude for this work . I have a few specific questions and would also be interested in any thoughts the members might have .
1) piston pin tight in piston - Heat piston in hot water prior to assembly for slip fit ?
2) Piston pin clip location - appears piston clip grooves will demand gap at bottom ?
3) New cylinder transfer and exhaust ports - any need to lightly dress them to accept new rings ?
4) Oil pump diaphragm - dry ?
5) Assembly fluid - 2 cycle oil , lubriplate ?
6) Run in mix - leaner than normal (meaning more oil) ?
7) Run in procedure ?
If the members could address these questions and offer any other experience or techniques it would be most appreciated . I have put a little more money into this than I care to admit but it is a worthwhile project for my son and I to work together on . If you think about it there are probably more than a 1,000 man years of experience on this topic up here,( and that's just counting Andy ) . What a work force to draw on . Thanks alot and I will post pics as we go .:greenchainsaw:
I have been pulling wrenchs for many years but have little 2 cycle engine assembly experience . I have stripped an old Poulan XXV down to the ground and collected the parts required for a proper rebuild ( restoration) . I have glass beaded and masked the parts in preperation for primer and original paint scheme . My son and I will assembly this saw together as he is in power mechanics and shows an interest and aptitude for this work . I have a few specific questions and would also be interested in any thoughts the members might have .
1) piston pin tight in piston - Heat piston in hot water prior to assembly for slip fit ?
2) Piston pin clip location - appears piston clip grooves will demand gap at bottom ?
3) New cylinder transfer and exhaust ports - any need to lightly dress them to accept new rings ?
4) Oil pump diaphragm - dry ?
5) Assembly fluid - 2 cycle oil , lubriplate ?
6) Run in mix - leaner than normal (meaning more oil) ?
7) Run in procedure ?
If the members could address these questions and offer any other experience or techniques it would be most appreciated . I have put a little more money into this than I care to admit but it is a worthwhile project for my son and I to work together on . If you think about it there are probably more than a 1,000 man years of experience on this topic up here,( and that's just counting Andy ) . What a work force to draw on . Thanks alot and I will post pics as we go .:greenchainsaw: