Re: Re: Re: Re: Re: Re: Engine knock F-20

Posted by George Mikesell on September 07, 2004 at 13:34:17 from (209.42.79.239):

In Reply to: Re: Re: Re: Re: Re: Engine knock F-20 posted by TMAC on October 25, 1999 at 19:39:24:

I have been studying what you have said about the knock on the f-20. First of all the back and forth movement of rod on crank is normal, it is built in. You need to make sure of crant to rod bearing clearance. This would be vertical movement. You really need to check this clearance at top of stroke and then half way down or when the through you are working on is horizontal. This for checking flatness of crank. Or better yet would be to mike the shaft. Yes this can be done fron inspection hole. That was the idea of inspection hole, you can remove the piston and put in rings this way, not easy but can be done. If the rod is truly loose I would want to know why it did not get oil. Pan is not hard to remove I would pull it and see if the oil line is pointing at the dipper. Or if it has came loose and not oiling the rod at all. Also the dipper may be messed up or have something in it thus keeping rod from being oiled. My best advice at this point is check evgerything from oil pump to oil distribution and dipper. Ps clean oil pan and run water through the main tube check for leaks and where waater shoots out will give you good idea if oiler is pointed ad dipper. You can adjust rod bearing by taking out shims, three and one half thousands to five is good fit. Use plasti guage to check can be gotten at local parts store. Remember Check and find out why the problem has occurred.

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