Lycanthrope Posted January 24, 2023 Report Share Posted January 24, 2023 Greetings everyone, I'm finally putting my 218 back together for my 53 belvedere and one rod bolt, nut and washer assembly has disappeared, This wouldn't be a big issue but the rods on this engine have a recessed area for a lock washer in the rod and my parts motor (Same year of Plymouth) has different rods with no washer. Does anyone know a source? Any idea what years they used lock washers? I feel that one of these engines may have been swapped in the past. Thanks Quote Link to comment Share on other sites More sharing options...
Bob Riding Posted January 24, 2023 Report Share Posted January 24, 2023 I am currently assembling the pistons in my 230, and have the same issue- some missing split washers. Would any grade be OK, or is say Grade 5 or 8 needed? Quote Link to comment Share on other sites More sharing options...
DJ194950 Posted January 24, 2023 Report Share Posted January 24, 2023 Bob I found that lock washers called Hi collars fit perfect. I used Grade 8 my self. Doug high-collar lock washers McMaster-Carr.htm Quote Link to comment Share on other sites More sharing options...
Sniper Posted January 24, 2023 Report Share Posted January 24, 2023 https://www.mcmaster.com/high-collar-lock-washers/ 1 Quote Link to comment Share on other sites More sharing options...
FarmerJon Posted January 24, 2023 Report Share Posted January 24, 2023 Is the rod bolt pictured one you will be reusing? It appears to be covered in moderate surface rust. I would personally feel very ill-at-ease using any critical hardware that looked to be in that condition. Rod bolts especially, they face a lot of hardship, and fail with an expensive BANG. 1 Quote Link to comment Share on other sites More sharing options...
Lycanthrope Posted January 24, 2023 Author Report Share Posted January 24, 2023 No, that bolt is just for example, the nut and washer are fine as they are from another rod, but the bolt is definitely not safe to use. that's why I am trying to find another one. I checked the Mcmaster site and may go that route for washers if I can't find a stock one. Thanks for the help everyone. 2 Quote Link to comment Share on other sites More sharing options...
Doug&Deb Posted January 25, 2023 Report Share Posted January 25, 2023 I’m following this with interest. My rods have no washers. There were none when I disassembled the engine. My engine is from 1958. Did they stop using washers at some point? Quote Link to comment Share on other sites More sharing options...
Sniper Posted January 25, 2023 Report Share Posted January 25, 2023 The Freewheeling Tony Smith does a set of Mopar con rods, he touches on the lock washers. Just click the right arrow to go thru the postings. https://www.facebook.com/photo/?fbid=2375796022441640&set=pb.100063489375749.-2207520000. Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted January 25, 2023 Report Share Posted January 25, 2023 (edited) I'm thinking around 1953 the countersunk lock washers were dropped. NOTE: I did more research... Both MoPar car and truck parts books show the use ofbthese con rod lock washers #668555 on the flat head six engines thru 1958. I'm not sure I believe that as I have seen quite a few using no lock washer ans no groove for it in the rod cap. It's possible the rods with no washers were re-conditioned rods with the washers being eliminated and the rod caps groove eliminated...just a wild guess. Edited January 27, 2023 by Dodgeb4ya More info. Quote Link to comment Share on other sites More sharing options...
Bob Riding Posted January 25, 2023 Report Share Posted January 25, 2023 51 minutes ago, Dodgeb4ya said: I'm thinking around 1953 the countersunk lock washers were dropped. My '56 has a space that looks like it would receive a washer... Quote Link to comment Share on other sites More sharing options...
Bob Riding Posted January 25, 2023 Report Share Posted January 25, 2023 3 hours ago, Sniper said: The Freewheeling Tony Smith does a set of Mopar con rods, he touches on the lock washers. Just click the right arrow to go thru the postings. https://www.facebook.com/photo/?fbid=2375796022441640&set=pb.100063489375749.-2207520000. So FWTS says split (lock washers) are unnecessary and they make accurate torquing impossible due to the damage that they do to the mating surfaces. I just looked at my disassembly pictures and they did not come with washers. Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted January 25, 2023 Report Share Posted January 25, 2023 19 minutes ago, Bob Riding said: My '56 has a space that looks like it would receive a washer... Maybe I'm wrong..what are the part #'s on your rods? Quote Link to comment Share on other sites More sharing options...
Bob Riding Posted January 25, 2023 Report Share Posted January 25, 2023 Just now, Dodgeb4ya said: Maybe I'm wrong..what are the part #'s on your rods? Looking again, it may just be a larger-than-bolt head mating surface. Hard to tell from my photos Quote Link to comment Share on other sites More sharing options...
Sniper Posted January 25, 2023 Report Share Posted January 25, 2023 Tony's pictures show the recess machined in a rod that uses lock washers. Later rods do not use them I believe, I do not know when that occurred. Quote Link to comment Share on other sites More sharing options...
DonaldSmith Posted January 25, 2023 Report Share Posted January 25, 2023 All seriousness aside, who is Rod Bolt? Perfect name for a fictional character, brawny he-man, takes no crap. My sister-in-law married an Alex Bolt. She is a retired audiologist, and late in her career had to get a doctorate in audiology. If I told you that Dr. Bolt is coming to see you, to set some things straight, you might be a bit apprehensive. She is maybe 5 ft 3, maybe 100 lbs, not quite the image expected. But she still doesn't take no crap Quote Link to comment Share on other sites More sharing options...
Doug&Deb Posted January 25, 2023 Report Share Posted January 25, 2023 Thanks. I’m doing my first engine rebuild so I’m hypercritical about everything lol. I keep thinking I’m forgetting something. Quote Link to comment Share on other sites More sharing options...
Sniper Posted January 26, 2023 Report Share Posted January 26, 2023 8 hours ago, DonaldSmith said: If I told you that Dr. Bolt is coming to see you, to set some things straight, you might be a bit apprehensive. When I was in the Navy we had a Master Chief who's last name was Doom. "Hey sailor, Master Chief Doom wants to see you" ? Quote Link to comment Share on other sites More sharing options...
rallyace Posted January 26, 2023 Report Share Posted January 26, 2023 High collar lock washers. They are used under socket head bolts and fit the rod bolts perfectly. As has been mentioned they are available at McMaster Carr. Quote Link to comment Share on other sites More sharing options...
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