Re: Motometer and loose fit/leaking water.

Posted by Ed Johnson on Oct. 15, 1998 at 18:09:40

In Reply to: Motometer and loose fit/leaking water.
posted by J.R. Aiello on Oct. 15, 1998 at 13:47:56

: Ah, more of the simple questions.

: I have a motometer on my '30 Sport Coupe. When it gets warm, and the engine gets into high rpms, I get green foam coming out of the neck of the radiator. I really thought there was something wrong. Sprayed the radiator shell, windshield, everything. I have water/anti-freeze inside, so I guess that's where the color comes from.

: I installed a new gasket between the cap and radiator neck, and a new one between the cap and the motometer. There seemsed to be a cork gasket up under the motometer upper part but I couldn't find a replacement for that, just the neoprene red on the goes on top of the lower half (above the hex screws). The problem is, the meter seem loose when I close it on the cap, like the red gasket isn't sealing. My father-in-law says it's the clips on the meter. "All you have to do is bend them down gently with a hammer so it pulls the cap down farther." AHHHH!

:
: I have two questions:

: 1. Is this green foam normal, but just usually inside the radiator, Or do I have oil (from the engine) or grease (from the water pump) getting into the water?

: 2. Do I need to replace that cork sealer, not just the red ring, or should I do like he said (horrors) and bend the clips down to make it fit tighter? I really have reservations about doing that. I hear these are expensive, and hard to find accessories.

: Thanks in advnace for the help and patience.
: J.R.

....No matter what kind of radiator cap you have it should seal and excess water, foam, etc. should all go out the overflow. The plain water experiment it useful. If that reduces foaming then try the new sierra antifreeze it is better. you will probably need to lower initial water level to where you can just see it or expansion will cause you to lose some at first but it should be going out the overflow..Ed




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