28Q29U Plymouth Forum

General Category => General Discussion => Topic started by: seasand on September 15, 2015, 01:31:04 PM

Title: carburetor for 29 U & 30 U
Post by: seasand on September 15, 2015, 01:31:04 PM
Does anyone know what make carburetor was used on the 29 U? Also what carburetor was used on the 30 U when they switched from vacuum tank to a fuel pump? Was it the same?
George
Title: Re: carburetor for 29 U & 30 U
Post by: frankp on September 15, 2015, 02:05:00 PM
29U was a Carter RT-08.  Cast in lower base.  Don't know 30U.  RT on your left, carter DRT-08 on right.    frank

Title: Re: carburetor for 29 U & 30 U
Post by: Gary 30U on September 15, 2015, 03:44:17 PM
I think Frank is correct. The RT-08 on the 28, 29 and early 30U. The DRT-08 (much easier to fine) used on the late 30-U and 31 and 32.

Just my guess.

Gary R.
Title: Re: carburetor for 29 U & 30 U
Post by: seasand on September 16, 2015, 02:47:15 PM
So the DRT-08 was used in conjunction with fuel pumps. Does that sound correct?
Title: Re: carburetor for 29 U & 30 U
Post by: Old Man on September 19, 2015, 10:17:24 AM
Boy frank those bowls are REALLY dirty. They should very shiny brass. BTW the same bowl was used on Chevs in those years. I know because the Plymouth bowls split from frezzing up here and we all had to find new ones when we were restoring ours.
Title: Re: carburetor for 29 U & 30 U
Post by: frankp on September 20, 2015, 08:52:51 AM
You're right Old Man, They are dirty!  For some reason I have never been able to get a good seal, bowl to body, or maybe the float level adjusted incorrectly.  Going along fine with no leaks and suddenly it will start.  Have to be in the float/needle valve, but what produces the inconsistency?  Debris in the valve seat I suppose.

Have to laugh.  When Dave first started his engine, he cleaned his carb and reassembled without bowl gasket.  I confidently told him it was sure to leak - ha!  Not a drop!
Title: Re: carburetor for 29 U & 30 U
Post by: Old Man on September 21, 2015, 09:00:23 AM
Original cars I found had a red rubber sealing ring between bowl and carb. Exactly the same as my wife's sealing jars! I used cork (that I can still buy in sheets of different thicknesses )from my local car parts place.
Title: Re: carburetor for 29 U & 30 U
Post by: frankp on September 22, 2015, 01:06:52 PM
Paper gaskets are supplied with today's re-build kits, so that is what I use.  Had to clean carb yesterday and put a bit of polish to the bowl.