28Q29U Plymouth Forum

General Category => General Discussion => Topic started by: 29plycoop on October 09, 2009, 12:31:39 AM

Title: Engine Rebuild info on my 29 Ply "U"
Post by: 29plycoop on October 09, 2009, 12:31:39 AM
Added another THING.  The valve keepers (5/32 pins i think) were not available so the ends of drill bits of appropriate size were used. They are tough and not brittle.
The weather has me worried as it has turned cold and I was in the middle of stripping, cleaning and repainting from the firewall forward. The engine is ready to breath fire and has to wait.
This will give you an idea of what it might take to stop one from smoking. This all came about from the engine smoking a little and a crack across the top of a piston in #4.
HAPPY MOTORING!!!! - RICH[/list][/list][/list][/list]
Title: Re: Engine Rebuild info on my 29 Ply "U"
Post by: Rusty on October 09, 2009, 06:27:45 PM
That is a true complete rebuild.  What did you do with the timing gears?  Reuse the orginial??  What about the oil pump?  thanks rusty
Title: Re: Engine Rebuild info on my 29 Ply "U"
Post by: 29plycoop on October 09, 2009, 09:40:29 PM
Hi Rusty-
The timing gear was OK so it went back in.  The oil pump was removed, checked, cleaned and reinstalled. The re-builder mentioned that the motor must not have very many miles on it that it did not show any ware. He removed and clean the oil pressure valve that it was clogged with build-up. I have read on the internet that if it is working don't try to adjust it to a higher pressure. I will be watching the pressure close for a while when it is back on the road. Happy Motoring!!!! - Rich   
Title: Re: Engine Rebuild info on my 29 Ply "U"
Post by: Rusty on November 30, 2009, 10:02:09 AM
What did  you do with the oil pressure relief valve?  Did you use a new spring or turn out the screw?  Since your engine is back to stock, what would be a good setting to start out with the relief valve setting?

thanks rusty
Title: Re: Engine Rebuild info on my 29 Ply "U"
Post by: 29plycoop on November 30, 2009, 05:37:04 PM
My engine re-builder took the oil pressure valve apart because it was stopped up with old hard oil. It was cleaned and put back in with no parts changed and the oil pressure was checked by hand cranking the engine.  My suggestion would be to count the turns of all the adjustments and put it back that way. Then check the oil pressure by cranking it over with the spark plugs out. Don't forget to rod out (clean) all the internal oil passages.     
Title: Re: Engine Rebuild info on my 29 Ply "U"
Post by: 29UJohn on March 20, 2010, 07:50:11 PM
Who rebuilt your engine?
Title: Re: Engine Rebuild info on my 29 Ply "U"
Post by: 29plycoop on March 20, 2010, 09:43:51 PM
John - My re-builder has been rebuilding engines for about 40 yrs and does all kinds of engines. He is located  in Troy, Missouri just west and north (25 miles) of the St.Louis area.  Email if you want more info. - Rich
Title: Re: Engine Rebuild info on my 29 Ply "U"
Post by: 29UJohn on August 07, 2010, 12:48:34 AM
Where did you buy the oversized pistons?  I bough mine form Egge and they are 33% heavier than the original ones.  I am concerned about the effect on the balance of the engine.
Title: Re: Engine Rebuild info on my 29 Ply "U"
Post by: 29plycoop on August 07, 2010, 03:47:45 AM
The added weight will not affect the performance of your engine.  The main thing to have checked is that each rod and piston assy weighs the same.  Your machine shop can do that for you.  It should not be a problem. My pistons also came from Egges.  The weather has been a little cooler the past few days so I have been painting all the engine parts and getting them put on.  Temps in the upper 90's for the past few months has put a hold on getting my rebuilt engine painted and installed. Good luck with your rebuild. - Rich
Title: Re: Engine Rebuild info on my 29 Ply "U"
Post by: 29UJohn on August 07, 2010, 08:36:37 PM
Thanks!  I'll have my machine shop do that.   They just turned the crank and still have to align bore the mains. 

John