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Messages - chetbrz

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General Discussion / Any Thoughts.?
« on: May 26, 2008, 07:43:30 PM »
I have been having a lot of trouble with burning an excessive amount of oil.  When at idle the oil pressure reads just under 40 psi and when driving my gauge is maxed out.  The motor runs strong and was rebuilt not too many miles ago by the car’s former owners.  Anyway since I was draining the coolant to replace the radiator with an original one I decided to remove the head.  My two purposes are one to inspect the pistons & cylinder walls, and the other reason is to repaint the head silver. 

With the head removed I found pristine cylinder walls with hardly noticeable edge ring.  The cylinders had oil puddled in the cylinders with a lot of black carbon on the pistons.  I cleaned up the area and decided to trouble shoot the oil pressure.

Thinking that my car’s gauge was inaccurate I installed a new modern oil gauge and cranked the engine with the starter.  The gauge read 38 psi after about a half a minute of cranking.  This is the same value as my interior gauge so I guess my old gauge is correct. 

I then decided to remove the pressure relief valve assembly.   After inspection I could not push the valve in far enough to allow the port to open.  I disassembled the valve and cleaned the spring, plunger, and cylinder.   After reassembling the parts I could now push the plunger in to allow the valve to open.   I think this was my problem.  I reassembled the valve into the engine and set the pressure one turn from minimum pressure.  I cranked the engine with the starter and the pressure pumped up to 20 psi and with continued cranking would go up to 35 psi.   The pressure looks much better now then when I started. 

Once I get the motor back together I will adjust for 35 - 40 psi maximum when driving at a normal speed.  I think this should help the excess oil burning problem by allowing less oil to blow by the cylinder rings. 

What do you guys think.?  Is there anything else I should do while the head is off.?


General Discussion / Re: Gary... Read this post !!!
« on: May 20, 2008, 08:30:03 PM »
Just for info. I had my brakes relined by these guys and they did a great job at a resonable price.
The starter on my 29 shorted and I've sent them and email to see what it will cost to have it rebuilt.

Good luck with all your projects


I see that you finally got your wheels off and had the brakes fixed.  Too bad about the starter motor.  Hopefully you will get it back and repaired and be back on the road soon.


General Discussion / Re: Under seat storage??
« on: May 20, 2008, 08:23:07 PM »

You are probably correct in your first assumption.  It might be that this was a storage place for the jack, crank, and a common tool set.   I have noticed this compartment while under my car.  I can’t access the compartment because someone replaced the floor and boarded over this area.  Hay wouldn’t it be great to open that floor up and find a bunch of money left over from a late thirties Bank Robbery.    Oh well I can dream… can’t I.  Most likely nothing there but a pile of rust.

I definitely have to get to a National Plymouth meet and see what one of these cars looks like based on a factory correct restoration.  There was one 29 Plymouth at Hershey last year and I just didn’t have the time to find it.  Mostly looking for parts and I only had an afternoon.  This October I plan to spend at least two full days walking the fields.

I would love to see what it looks like under your rear seat.  If you ever have the camera out I would appreciate a photo.

Tks, Chet…

General Discussion / Re: u model brakes binding
« on: May 20, 2008, 02:22:11 AM »
There are a number of things that can keep your brake pressure from bleeding off. 

You can have some type of obstruction in your brake lines.  If all four wheels are locking then the obstruction may be from the tee in the middle of the car back to the Master Cylinder.

Also there is a tiny drain hole in the master cylinder that is there to allow pressure to equalize on both sides of the drive piston. 

See diagram item 9

Master cylinder piston return spring stuck not allowing the valve to open and bleed off the pressure.  Remote but possible  See item 20 above.

Have you done any work to the brake system lately?  If so that might be a good place to start.  If not then maybe dirt and sludge have accumulated in the lines.  Might be a good time to blow them out and clean the whole system.

For what it's worth my 2 cents,  Chet…

General Discussion / Gary... Read this post !!!
« on: May 19, 2008, 04:46:30 PM »

I call Tom Hannaford at the Antique Auto Parts Cellar to arrange to have my front motor mount re-vulcanized.   We talked a little and he told me that he carries everything mechanical to keep the 28-30 Plymouth rolling including Kingpin sets.

I thought you might be interested:

Antique Auto Parts Cellar
PO Box 3 (6 Chauncy Street)
Weymouth , MA 02190
Telephone: 1-781-335-1579
Fax: 1-781-335-1925


General Discussion / Anyone have any experience with..
« on: May 19, 2008, 01:06:37 PM »
Anyone have any tips or personal experience with changing the return spring on the 29-U starter motor.   


General Discussion / Re: Oil Pressure
« on: May 15, 2008, 05:43:40 AM »
I was just thinking about the info. Does anyone have a diagram
of the oiling system they could send us?  Thanks

This is the best I can do.  The attached file is a cut view of the Modal U engine.


Open the PDF file below the line.

General Discussion / Re: Oil Pressure
« on: May 14, 2008, 10:38:01 PM »
On the U engine the oil pump is external and is located under the intake and exhaust manifold.  If you remove the front cover crank the engine for a short time to ensure that the eccentric is turning.   I believe there is a little gear that commonly wears out.  If your engine was rebuilt I would assume that this was checked but who knows.

Also there is a pressure relief valve that might be creating some problem.   I know that with modern oil pumps you should always prime them prior to installing them.  I am not sure about the U pump but it can't hurt.  There is a pipe that goes from the oil pump to the engine.  Check that for oil content and if the pump is turning then maybe get some oil in it to prime the pump.

My 2 cents, 

Chet…  & Welcome to this web site.!!

PS... If you are not sure you are getting oil pressure then I wouldn't run the engine. 

General Discussion / Re: Getting the 29 U ready for the summer ...
« on: May 14, 2008, 03:47:06 PM »
Chet, How do you like the floor pads. I have been looking at them. I have my originals but they are dried out and warped. Is it very hard for you to get your floor board up to reach the battery. I have a small rectanglar hole I can lift out to check the water but to get the hole floor out is a job


I too have a rectangular hole that allows you to access the battery.   I am not removing the floor just installing a new toe board.  The piece that goes from the floor to the firewall.  I will be putting down rubber mating in the front of the car and for the time being leaving the rear as is. 

My floor is not original and the previous owner laid down tong & grove oak flooring.  Since it is stained and varnished it actually looks real nice especially in the back.  The floor was redone a long time ago so it really has a vintage look to it.  For the 4-door sedan I believe the original floor was plywood with rubber flooring in the front and carpet in the back.

As for the Steel Rubber replacement pads I think they are excellent.  The one for the pedals was copied from an original 29-U item.  If you have a 1928-Q it has to be slightly modified to fit around the steering column.


General Discussion / Getting the 29 U ready for the summer ...
« on: May 14, 2008, 03:22:03 AM »
I am getting the 29 U ready for the summer driving season:

Original refurbished radiator ready for installation.

I can't wait to give her a crank...

Kingston Vacuum fuel pump ready for installation:

I purchased some reproduction floor pads for the pedals and the shifter form Steel Rubber.  These are well worth the money and are excellent reproductions.   I will also redo the toe board and install repro rubber floor matting.


I have lots of other little things to fix like installing the new Steel Rubber windshield molding and fixing the broken passenger side window.  I hope to be back on the road before Father's Day.  I am excited about getting the old girl out on the open road again in a little better condition then she was the year before.


General Discussion / Re: 28 / 29 Interior
« on: May 08, 2008, 05:54:42 PM »
Mr Plymouths

Take a look at Chris’s interior.  It looks pretty original to me.  Also the Passenger side front and the drivers side rear have a map pouch.

What do you think.???


Chris,  My car has no map pouches in the rear.  My interior is leatherette and has a map pouch on both front doors.  (29 Model-U,  US Built approximately March 29)  I don't know if mine is original but the interior is very, very old.  I will post pictures at some point.

General Discussion / 28 / 29 Interior
« on: May 07, 2008, 10:32:49 PM »

There is a 29 Plymouth 2 door sedan on eBay and the interior pictures show a pouch on the passenger side only.    The car looks like an older restoration but looks pretty true to form.  I will check my car tonight on the way home.  I think there are pouches on the rear doors ???  Who knows if my interior is original the only thing I know for sure is that it appears to be leatherette and very old.


General Discussion / Re: Satillite70 did you pick up your car yet ?
« on: May 06, 2008, 10:11:31 PM »

A lot of the questions you are asking might be better answered on the POC Board.  The Plymouth Owners Club strives for strict reproduction to original factory specs.   After near 80 years it is pretty difficult to determine what was truly original in that a reupholstery which was done in 1948 will look pretty damn original in 2008.

As far as screws go Phillips wasn’t patented until 1930 so they are definitely not original. Robertson Screws are possible in that they were patented in 1908 and used in the early Modal T Fords.  I don’t know if Chrysler used them but he might have in that he did at one time work for Mr. Ford.

As far as the door pouches go I have them on both front doors.  For the life of me I can’t remember if the rear doors have pouches.   I would suspect not since the rear seat is so far back in the 4 door sedan that I would think the pouch would be impractical but I’m probably incorrect.   Right now my car is in a storage facility so I can’t check for you.  (No room at the Inn.)

The floor is interesting.  I was told that the floor in the 28 & 29 Plymouth was originally plywood.  Yours appears to be tong & groove hardwood.   Is this correct?  Mine also has tong & groove wood but I am sure that mine it is not original flooring.   Some Ya-Hoo nailed it in and also used drywall screws everywhere.  I may not subscribe to struck originality but drywall screws are just WRONG.

Have fun, your work is looking good, Chet…

General Discussion / Ford Gas Gauge in 29 Plymouth, Oh! My!!
« on: May 03, 2008, 03:51:01 PM »

No original Plymouth parts were modified to make this work.

Please see the link for the project blow by blow…

Cheers,  Chet…

General Discussion / Re: flywheel repair
« on: April 24, 2008, 04:39:23 PM »
The clutch throwout bearing has it's own return spring that is separate from the clutch pedal return spring.  On my 29U, it attaches to a small knotch on the bottom of the upper access opening to the clutch (i.e., the access opening that you use when putting grease into the bearing.)  This same spring was used for many years.  I recently obtained a new exact replacement from PowerWagens for just a few dollars. 

My apologies, I forgot about the spring that attaches to the throw out bearing.

Thanks John for updating this post.  I sent Jim an email alert.


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