Water Temp Gauge - 77 corvette

by Ceymore Hobson
(Marshall, Missouri)

I recently bought a 77 vette with a very mild supercharger (6 lb boost) 350 engine and 85,000 miles. It has sat a while.

I've:

1. flushed the system several times,
2. new water pump,
3. used a compressor to blow the fins out on the radiator and the AC condenser,
4. inspected the hoses, added the wire to the bottom hose within 1" of connection to the radiator and pump,
5. put new sending unit in block for water temp
6. poured water down the thermostat, placed a funnel above the radiator with standing fluid and allowed it to "stand" incase of air bubbles
7. Chin spoiler is placed on the car

8. Withstood numerous attacks by my "Native American Wife" for having bought a " @#$% Corvette " I feel I can hold my own after being an Indian Fighter for nearly 25 years, but I am getting slower,older.....and tired.

I placed a thermometer in the radiator and it only reads between 190-210 when idling, but the gauge on the instrument panel shows 250+ and this is idling for less than 15 minutes - yet the thermometer in the radiator doesn't seem to get over the 200 mark.

When going down the road it will red line on temp gauge in less than 6 miles.

I'm thinking of trying an aftermarket temp gauge and sending unit to do another test-

Is it possible that the radiator is staying cool and the block is pegging out? should I take it down to the heads and take a look inside it?

Comments for Water Temp Gauge - 77 corvette

Average Rating starstarstarstarstar

Click here to add your own comments

Aug 18, 2012
Rating
starstarstarstarstar
answef
by: Anonymous

I had a short on the ground to the gauge. Mechanical gauge verified it, and a faulty radiator cap. Added a Mark 8 fan to it now it is okay. Think I.llgo back to trucks. Listed it on craigslist columbia\jeff city mo. Look, for widow maker.

Click here to add your own comments

Join in and write your own page! It's easy to do. How? Simply click here to return to C3 Corvette Ask!.





















Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.
Chris Trautman @ Corvette Assembly Plant 2019

About Us: Corvette Web Central | Owner Bio: Chris Trautman

Established in 2008 by Chris Trautman, Corvette Web Central quickly grew into one of the top leading Corvette enthusiast websites globally. 

"This website is a passion of mine, just as much as being a Corvette owner," says Chris.  He was frustrated trying to find information on the internet about Corvettes which was was not biased or influenced somehow. 

He has owned three Corvettes over the last twenty years and does not plan to stop owning one anytime soon.

Note: Some links on this page are part of our affiliate program and provide a small portion of proceeds to fund the administrative costs and to fund more product reviews.  We are not paid to perform the reviews or are we given any products for free.  

You might like these