oldschoolvolvo
Well-known member
- Joined
- Mar 27, 2004
- Location
- Lancaster, PA
@TR Conn
What radiator is that? Haven't seen a port in the endtank like that before.
Hello Guest, welcome to the initial stages of our new platform!
You can find some additional information about where we are in the process of migrating the board and setting up our new software here
Thank you for being a part of our community!
Without a doubt, you have identified the problem perfectly. If it cools down with more airflow, then that's what it wants.I noticed the temp gauge likes to rise from middle position (1/2 way to HOT) and slowly raise up to the 3/4 position when sitting at lights. Goes back down after I start moving.
New thermostat won't help a bit. That affects only the engine minimum temperature, not the maximum.Is there an issue I am missing? Or is it simply a matter of installing a better fan set-up, changing the thermostat, or adjusting the temp of the fan cut-in, OR... get a new rad?
@TR Conn
What radiator is that? Haven't seen a port in the endtank like that before.
I am also very concerned with overheating.
This is the setup I had on a 305 conversion I did about 15 years ago.
A pusher, two pullers and a fan cooled oil cooler.
The only time I had a problem was sitting in traffic for 2 hours, 90+ degrees outside and the A/C blasting. All was well until the fuse socket melted.
BTW this was fed by a 180 amp alternator.
How does the PRV rad compare to the Diesel in size?
Or the thermostat is sticking open.
Most likely this.
The cool-kid upgrade is to use a 160F thermostat... which is a terrible idea. I think 185F is stock.
If you end up replacing the t-stat, spend the extra few dollars on a "high flow" thermostat. Major upgrade if you're cooling system is on the verge of being marginal when pushed hard.
ACDelco 12TP1D is one option
Without a doubt, you have identified the problem perfectly. If it cools down with more airflow, then that's what it wants.
Some folks rationalize that V8 heat is normal. But for the folks who have fixed the issue, the secret is fans.