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77Clark · 06-28-2009, 12:04 AM

My dad and I just bough a 77 Brave. Its in pretty decent shape. Getting a few things back in working order and the only gauges that don't seem to work is the coolant gauge(the push button one) and the vacuum gauge. Traced the vacuum tubing from the gauge to the motor but led to a dead end. Where does the line go to on the motor?

JimElliott · 06-29-2009, 09:13 AM

Quote:

Originally Posted by 77Clark

My dad and I just bough a 77 Brave. Its in pretty decent shape. Getting a few things back in working order and the only gauges that don't seem to work is the coolant gauge(the push button one) and the vacuum gauge. Traced the vacuum tubing from the gauge to the motor but led to a dead end. Where does the line go to on the motor?

Well it can be located at a few places....Base of your carb or a plug in the manifold.
Just idle up your engine and start pulling off vacuum lines one by one and you will hear a big hissing sound along with a huge engine stumble....
Maybe where the brake booster is plugged in MIGHT have a place to "T" off.....Good luck.

Jim

Dave78Chief · 06-30-2009, 11:16 AM

The coolant level sending unit is loacted on the top rear of the radiator. Make sure the wire has not come off.

Dave

77Clark · 07-03-2009, 02:42 PM

yes that little sensor has fallen off. How should it be re-attached to the radiator?

Dave78Chief · 07-04-2009, 02:21 PM

Mine is a screw in sensor. Sounds like the plastic portion (interior) of yours has broken off. I can find Dodge P/N's for both the transmission and engine oil level sensors but no radiator fluid level indicator. I suspect this is one item you will have to locate in a junk yard. Make sure your coolant recover system (passenger side of radiator) is in good shape. Yes, there are 2 radiator caps. The one on the radiator is used for the coolant recovery line. The other is just an extension to allow easier access for filling the cooling system. The proper 440-3 skirted thermostat is available from Jegs or Summit racing under Mr. Gasket P/N 4367. An unskirted thermostat will not cool the engine properly.

Dave

77Clark · 07-06-2009, 03:39 PM

I had read about the thermostat somewhere else too. Thanks for the part number I will get on Summit now and get one. I think the overflow tank does leak. Just another project!