Bill heath Posted January 26, 2021 Share Posted January 26, 2021 Hello everyone. I have a 1928 IHC truck that runs the Lycoming 4SL, 6-cyl engine. Grandfather bought it new and handed it down to me in 1966. Has always run and drove great, but it is time for main bearings. Hoping someone amongst you can help me locate a set of these. I can provide the factory IHC part numbers. Regards Bill Link to comment Share on other sites More sharing options...
JustDave Posted January 26, 2021 Share Posted January 26, 2021 Try Lester Harris in minded Nevada,Lester has been in the antique auto parts business since are lord built the mountains,you should be able to google. His numbers, Dave Link to comment Share on other sites More sharing options...
Restorer32 Posted January 26, 2021 Share Posted January 26, 2021 It had inserts rather than babbitted bearings ? Link to comment Share on other sites More sharing options...
Bud Tierney Posted January 26, 2021 Share Posted January 26, 2021 If the above is no help and you have to go on the hunt, a 36 engine pats catalog says the Lyc 2S, 3S, 4S, 4SG and 4SM all share mains with your 4SL... If necessary, I can advise some clubs for makes using one or more of the above... I assume you've already tried oldihc and the other IH forums...Lyc pats are not that common now... Link to comment Share on other sites More sharing options...
C Carl Posted January 27, 2021 Share Posted January 27, 2021 11 hours ago, JustDave said: Try Lester Harris in minded Nevada,Lester has been in the antique auto parts business since are lord built the mountains,you should be able to google. His numbers, Dave That would be MINDEN , Nevada. I lived there for a while back in the ‘60s. Love that spellcheck ! - Carl Link to comment Share on other sites More sharing options...
Bill heath Posted January 27, 2021 Author Share Posted January 27, 2021 thank you all! the mains bearings are inserts. they are a very heavy wall brass shell with babbitt overlay. The shells are 0.188" thick including 0.025" babbitt layer. they have the original IHC part numbers stamped on them along with the IHC logo, Federal Mogul logo, Detroit USA and the -020 undersize. I have an original parts book for this 4SL engine and find that the numbers on the bearing shells match those listed in the parts book. The book indicates STD as well as the -020. I dont know where to turn for help. I will contact Lester Harris for help. Can you provide contact info? Link to comment Share on other sites More sharing options...
Bud Tierney Posted January 27, 2021 Share Posted January 27, 2021 Google Lester---home phone, mobile and email will cone up, but better not delay, as Google says he's 90...a poor joke, nut I'm entitled as I'm 89 and heading there myself... If Lester no help try the Elcar and Gardner car clubs---Elcars used the 2S and 4SM at least, and Gardners show with 2S, 4S, your 4SL (generally a truck engine) and 4SM... Even if no help, if bearings now unobtainium. other owners may've found modern work-around.. Link to comment Share on other sites More sharing options...
Restorer32 Posted January 28, 2021 Share Posted January 28, 2021 Not a big deal to have your original bronze shells rebabbitted. Install in block and have them align bored to fit your crank. Link to comment Share on other sites More sharing options...
Guest Posted January 28, 2021 Share Posted January 28, 2021 My main bearings are made the same. It was no problem to have them rebabbitted except my machinist said that even though the bronze backing was heavy it could be distorted by being removed. He recast my bronze pieces and then babbitted them. An excellent job and not very expensive. Link to comment Share on other sites More sharing options...
hattrick4467 Posted February 15, 2021 Share Posted February 15, 2021 How do i go about finding A piston and rings for my 4SL engine? Also one of the cylinder walls has a pretty deep score. Can the cylider be sleeved? Link to comment Share on other sites More sharing options...
Guest Posted February 15, 2021 Share Posted February 15, 2021 8 hours ago, hattrick4467 said: Can the cylider be sleeved? Any cylinder can be sleeved. It is best if all the cylinders have the same bore but not essential if you a building an engine for a trailer queen or only short drives. Link to comment Share on other sites More sharing options...
Bud Tierney Posted February 16, 2021 Share Posted February 16, 2021 The 4SL had two pistons per that 36 catalog... 4SL to #15624 shared pistons with 4S, 4SG, 4SM 6s and 4H,4HM 8s (4 ring piston) 4SLl #15624 (sorry, that's what it says) to 26996 takes a 3 ring piston, not shared by any other Lyc...... Remember that engines used primarily in trucks, so you could post on the various old truck site looking for leads... ... Link to comment Share on other sites More sharing options...
Paul S Posted February 16, 2021 Share Posted February 16, 2021 (edited) I had Egge make a set of pistons for me years ago, they also made new valves. Everything is in a box somewhere. I never finished the project. And as mentioned, the bearings can be Babbitted and machined. Edited February 16, 2021 by Paul S (see edit history) Link to comment Share on other sites More sharing options...
Ernest T. Posted February 28, 2021 Share Posted February 28, 2021 Paul,Not sure how old this post is,but if you still have the pistons/valves from Egge,I would be interested in purchasing them from you.Please let me know either way & thanks,Ernie. Link to comment Share on other sites More sharing options...
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