[FWDLK] Fw: [FWDLK] help again

Looks like you have beat this thing to death. Here is something you may think about.

1. The timing gears may have jumped time. If this engine is original and never been overhauled it has (as best as I can remember) the fiber timing gear on the camshaft. Changing timing on distributor will not help. If engine is new rebuild it could have been timed one tooth off. In this case engine will still run but will heat and usually hard to crank when hot

2. The block is full of sludge and rust. You would be supprised how much rust the engine can collect over the years. For example when I rebuilt my 57 Plymouth and 58 Dodge engine I removed the freeze pluges and with hammer and a piece of small pipe dug crap from around the cylinder walls as best as I could and then had the block vated under high pressure. You would not believe how much came out. Back flushing will help very little. Also had to open up holes in trhe heads. I know none of these things are simple. Good luck and keep us informed.

Mack

----- Forwarded Message -----e
From: Nick Sperduto <drt-rdr@xxxxxxxxxxx>
To: L-FORWARDLOOK@xxxxxxxxxxxxx
Sent: Thursday, March 22, 2012 4:11 AM
Subject: Re: [FWDLK] help again

One thing I never liked about guages without numbers.

I would temporarily hook up and aftermarket guage so you can see what the engine is actually doing.

Is the car 6v or converted to 12v?

From: Forward Look Mopar Discussion List [mailto:L-FORWARDLOOK@xxxxxxxxxxxxx] On Behalf Of Jesus Jimenez
Sent: Wednesday, March 21, 2012 8:51 PM
To: L-FORWARDLOOK@xxxxxxxxxxxxx
Subject: [FWDLK] help again

Hello,

I am completely dumbfounded and I have hit a dead end on my cooling problem with my '55 Ply 6 cyl. Essentially, the motor overheats as indicated by the meter. The meter hits the highest temperature even before the thermostat opens. Consequently, I have worked as systematically as I was able to try to eliminate possible problems but still, the meter indicates overheating before the thermostat opens:

These are things I have done or observed:

1. changed the thermostat three times from 180 to 160 (tested both thermostats separately in hot water and both open)

2. checked the timing

3. replaced the radiator with another one

4. replaced the water distribution tube with a brass type

5. replaced the water pump with a NAPA brand

6. replaced the temp gauge

7. replaced the temp sensor twice-the current one is brand new from a '57 Chrysler

8. replaced the wire sending unit twice with wires of different gauges (#14 and #16)

9. checked oil pressure --normal

11. done reverse flushing

12. checked the water temperature with a glass and metallic thermometers and both indicate 180 degrees as the water circulates when the thermostat opens.

As the motors runs, water circulates and both hoses are hot but by this time the meter indicator is out of range and have to turn the engine off.

Hope someone has some other ideas or maybe knows what's going on.

Thanks

Jesus '55 Ply 6 cyl Belv

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