Fundamental Rebuild Questions

[kwk]

I'm having my 1989 125 HP Force rebuilt and have a few questions that I'm hoping you guys can help with.<br /><br />1) Wiseco or Mercury pistons? The Wisecos are less expensive, but only have a 30 day warranty compared to 1 year for Mercury.<br /><br />2) What bearings should be replaced preventively? The mechanic says that all of my bearings look to be in great shape and replacing them could actually cause more wear.<br /><br />3) He is only recommending boring out one cylinder 0.030", but just cleaning and honing the others. Is that okay to do?<br /><br />Any other advice on the rebuild?<br /><br />Thanks for your help.

 

[The Marine Doctor]

Re: Fundamental Rebuild Questions

Mercury pistons. Pay for the warranty...you may need it.<br /><br />If the brgs are in good shape they should be fine. <---If the Tech says they are fine. He is the one that warranties it.<br /><br />You can just oversize one cyl. This though is not something we practice at our shop..but..people do it and it seems to work fine.<br /><br />TMD

 

[The Marine Doctor]

Re: Fundamental Rebuild Questions

Mercury pistons. Pay for the warranty...you may need it.<br /><br />If the brgs are in good shape they should be fine. <---If the Tech says they are fine. He is the one that warranties it.<br /><br />You can just oversize one cyl. This though is not something we practice at our shop..but..people do it and it seems to work fine.<br /><br />TMD

 

[force01]

Re: Fundamental Rebuild Questions

If you are going to use the oem pistons have the mechanic order the older pistons that do not have a hedland ring or go with wiseco's. they are an execllent piston for your motor. thanks, bret<br /><br /> If you need further assistance please email me @ forcepower01@yahoo.com. thanks,Bret