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General Information => Troubleshooting => Topic started by: motomike33y on March 13, 2012, 08:03:23 am

Title: Missing Main Bearing Cap-any remedy?
Post by: motomike33y on March 13, 2012, 08:03:23 am

Have a 1.6 block w/crank and pistons but discovered that I somehow am missing the middle cap on the main bearing.  I've read about the line-boring and matching of caps so am I SOL or can a different cap be used?  What options do I have?  thanks

Title: Re: Missing Main Bearing Cap-any remedy?
Post by: rallydiesel on March 13, 2012, 08:33:23 am

Find another cap and get it line bored. No other option.

Title: Re: Missing Main Bearing Cap-any remedy?
Post by: motomike33y on March 13, 2012, 10:17:33 am

assume that is a complicated and expensive process?

Title: Re: Missing Main Bearing Cap-any remedy?
Post by: rallydiesel on March 13, 2012, 04:58:12 pm

Block needs to be bare and taken to a machine shop. Not super expensive, just lots of time and labour in the prep.

Title: Re: Missing Main Bearing Cap-any remedy?
Post by: sdwarf36 on March 14, 2012, 09:33:15 am

We'd get $250 at our shop to line hone it. More if theres major complications.

Title: Re: Missing Main Bearing Cap-any remedy?
Post by: motomike33y on March 14, 2012, 11:54:59 am

certainly an expensive lesson then for misplacing cap-block was only worth about $100-now minus $150 in value.  :(

Title: Re: Missing Main Bearing Cap-any remedy?
Post by: pointynoggin on March 14, 2012, 04:45:38 pm

I think that cap has the thrust brg too which you should consider.  you may have to get the flats milled to match and do a custom fit on the thrust brgs.  I'm not sure.

Title: Re: Missing Main Bearing Cap-any remedy?
Post by: R.O.R-2.0 on March 14, 2012, 07:24:18 pm

Quote from: pointynoggin on March 14, 2012, 04:45:38 pm

I think that cap has the thrust brg too which you should consider.  you may have to get the flats milled to match and do a custom fit on the thrust brgs.  I'm not sure.

that was a point i was also going to bring up.. the thrust bearings are contained in the #3 journal and cap..