She's a Red Hot Mamma!!

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Model T Ford Forum: Forum 2012: She's a Red Hot Mamma!!
Top of pagePrevious messageNext messageBottom of page Link to this message  By Trey Gwaltney on Friday, September 21, 2012 - 10:41 pm:

Ok, so I've fixed (I hope!) most all of the little problems that came with this '22 (though probably '24) Roadster. Even got the water pump to stop leaking with some new packing. So as my buddy and I are standing there, proud of our work, and watching with glowing smiles as the engine continues to smoothly run well above idle, we notice that the exhaust manifold is getting really hot.... glowing, in fact. Is this reason for concern? I could still put my hand on the block, the thermometer wasn't even halfway up, and everything sounded great. We realized this was the first time we had worked on the car after the sun had set, and we were outside from using the hose to rinse out the water pump. Our lighting was minimal, and that made the glowing manifold quite noticeable.

Everything ran like clockwork, and the radiator (yes, the thermostat had opened) never got hot enough to overheat. Do I have reason to be concerned with this very hot manifold, or is this a common occurrence, and we have simply never noticed it before?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Erich Bruckner, Vancouver, WA on Friday, September 21, 2012 - 10:48 pm:

It is not normal in a correctly operational T. I wonder is your timing is set to retarded.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Erik Johnson on Friday, September 21, 2012 - 10:53 pm:

You're your gas/air mixture is too lean. Adjust the carb via the nob (clockwise = lean, counterclockwise = rich).


Top of pagePrevious messageNext messageBottom of page Link to this message  By Bill in Adelaida Calif on Friday, September 21, 2012 - 11:30 pm:

Mouse nest in the muffler?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Erich Bruckner, Vancouver, WA on Friday, September 21, 2012 - 11:37 pm:

All the above, or combo.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mike Robison on Friday, September 21, 2012 - 11:39 pm:

Many times the manifold will get red from # 3 exhaust port all the way to the bend in the exhaust pipe. Like you said the light was low and you were able to see it. No big deal in most cases.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Trey Gwaltney on Friday, September 21, 2012 - 11:58 pm:

Well, I think I can address each of these suggestions....

The timing lever was pulled almost all the way down, which seems to make the engine run the smoothest.

The choke was adjusted so the engine sounded to run the smoothest. Much more in either direction and it would start to sputter and appear to want to choke out.

I'll admit, I haven't been in the muffler, but there is a pretty steady stream of hot air puffing out of that thing.

I'll check all of these things tomorrow, but keep the suggestions coming....

Thanks.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Gregush Portland Oregon on Saturday, September 22, 2012 - 12:04 am:

After I did some repair on my carb last night and had the car running outside, I saw the same thing, the back half was a nice warm glow. Opened up the spray needle a little and pulled the spark lever down a bit more. The glow was gone in just a little bit.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Erik Johnson on Saturday, September 22, 2012 - 12:27 am:

You should only need to choke during a cold start up. Choke should be off when the engine is running. Are your referring to the mixture rod? You may be running too lean.

Just because the spark lever is down does not mean the ignition is timed properly. Your ignition may still be retarded if the timing rod has not been properly adjusted.

If you have not already done so, read the owners manual. If you don't have a copy, you can read it online via the MTFCA.com website.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Gregush Portland Oregon on Saturday, September 22, 2012 - 01:34 am:

The amount of priming with choke depend on the car and carb. Some need to be choked more then others.


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