Overall they are great engines that will run an easy 12,000 hours if you take care of them. The top 3 on my list considering the age of the 120 are: 1. injector pump seals - look for a lot of diesel in the injector pump oil when you change it. 2. leaking rear crankshaft seal 3. raw water pump - they are subject to fail but America Diesel has an upgrade. Also be careful of you transmission. Have the oil tested. Any sign of moisture probably means the oil cooler leaked at some point. People often try to flush them out and replace the cooler. There is no way to get all of the moisture out without tearing the transmission down. Any residual moisture will collect around the bearings and eventually cause them to fail. The problem is that if a bearing fails and damages the housing, with these older transmissions some major parts are hard to find. If you have any moisture you should pull the transmission, take to an authorized service center, and ask them to replace the seals. They will tear it down in the process and find any suspect bearings or other warn parts. Bob Smith at American Diesel gave this advice twenty years ago and it ended up saving me a transmission. Tom Collier KK42 - Pirate Date: Fri, 6 May 2016 16:38:50 -0700 From: Richard P <rpackard43@gmail.com> To: "trawlers@lists.trawlering.com trawlers@lists.trawlering.com" <trawlers@lists.trawlering.com> Subject: T&T: Ford Lehman weaknesses Message-ID: <CAKCKiQeSFFmseX3ss-rO_Mr7GMaiPAxycwrjGJhz7POi=mGEEg@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 Can listees give me a heads-up on things I should look out for on a Ford Lehman 120hp from 1979? Thanks Richard ------------------------------ Subject: Digest Footer _______________________________________________ http://lists.trawlering.com/mailman/listinfo/trawlers_lists.trawlering.com To unsubscribe send email to trawlers-request@lists.trawlering.com with the word UNSUBSCRIBE and nothing else in the subject or body of the message. Trawlers & Trawlering and T&T are trademarks of Water World Productions. Unauthorized use is prohibited. ------------------------------ End of Trawlers-and-Trawlering Digest, Vol 165, Issue 6 *******************************************************