thermodynediesel Posted October 20, 2009 Share Posted October 20, 2009 Looking for some opinions on this.My 59 B-61 has a 673 with 10 speed TRD 72. The engine runs good,but it has the idle problem that I did mention a couple weeks back, The thought is that maybe the fuel pump is worn out,and needing rebuilding.It looks like the block has had some brazing done to it, put dose not leak water or anything. Here's the question, I also have a 62 B-61 that has a great running 711 with a TRDL 725 air uni-shift 10 speed. The previous owner had had some extensive motor work done while he had it, Like new sleves, rings,rod bearings,cam bearings,resurfaced heads,cleaned and bead blasted pistions ect ,and had some transmissions work done. There is a couple grand in receipts for work he had done. Should I swap the motor and transmission from the 1962 or just the motor ? will there be any issues with doing this ?? Thanks in advance. Mike Quote Link to comment https://www.bigmacktrucks.com/topic/11104-engine-and-trans-swap/ Share on other sites More sharing options...
terry Posted October 20, 2009 Share Posted October 20, 2009 should be a bolt in swap, everthing will interchange, and why not use the unishift if everything works all right. terry Quote Link to comment https://www.bigmacktrucks.com/topic/11104-engine-and-trans-swap/#findComment-42136 Share on other sites More sharing options...
thermodynediesel Posted October 20, 2009 Author Share Posted October 20, 2009 should be a bolt in swap, everthing will interchange, and why not use the unishift if everything works all right. terryThanks for the reply terry,I am going to strongly consider doing the total swap. Quote Link to comment https://www.bigmacktrucks.com/topic/11104-engine-and-trans-swap/#findComment-42175 Share on other sites More sharing options...
vanscottbuilders Posted October 20, 2009 Share Posted October 20, 2009 I agree - a swap should be a pretty minor affair.Also a good opportunity to put new hoses on the engine, and to check out all the various plumbing and weak links that might have been overlooked for many years.Good Luck!Paul Van Scott Quote Link to comment https://www.bigmacktrucks.com/topic/11104-engine-and-trans-swap/#findComment-42177 Share on other sites More sharing options...
Mike Posted October 21, 2009 Share Posted October 21, 2009 Mike, I agree with each of you guys about this but, why do all the changing when all you have to do is change a pump because of a little idle issue. Sounds like a lot of work for just a pump issue. That is the way I understand the situation. Sounds like both trucks are decent enough to just enjoy the way they came from the factory. If ya keep them long enough you'll have plenty of work to do on them as is. mike Quote Link to comment https://www.bigmacktrucks.com/topic/11104-engine-and-trans-swap/#findComment-42210 Share on other sites More sharing options...
Freightrain Posted October 21, 2009 Share Posted October 21, 2009 How about swapping pumps and see if the ol 673 runs okay then? Or find a pump that is a known good one and try it. Might be simpler to fix then R&R the whole thing.Just a thought. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/11104-engine-and-trans-swap/#findComment-42214 Share on other sites More sharing options...
thermodynediesel Posted October 22, 2009 Author Share Posted October 22, 2009 One of the real positive points about the engine in the 1962 B is all the work that was put into it, I was also thinking about down the road that this engine would have the longer life left since I plan on doing a total restoration on the 1959 B and just wouldn't want to end up having to do engine work later on after the truck is restored. Quote Link to comment https://www.bigmacktrucks.com/topic/11104-engine-and-trans-swap/#findComment-42241 Share on other sites More sharing options...
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