Quote:
Originally Posted by jaros44sr
A 1971 blazer, turned down my sending unit, as I was having incorrect readings on my gauge, G1852 seems to stick in my head, but I could be wrong, if you can't find one at NAPA, he will supply one turned down for your truck.
The flat spark plug shield will clear the sender, but in retrospec, someday , I will replace with the angled one.
After I've completed a couple more heat cycles I'll bend the manifold bolt locking tabs down.
I believe the shields are tapped in the block with 1/4-20 bolts
Check your intake manifold gasket you may have blo cked your cross over port
The Eastwood cast iron coating is not holding up to my liking, someday ceramic coating.
Also I'm not fond of the the gasket for the exit port(down pipe) I use a sold sintered piece with a metal sleeve
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Great info, Jim. thanks for sharing photos, bolt sizes and your experience.
Can you elaborate on what you mean when you typed "Check your intake manifold gasket you may have blo cked your cross over port"? I'm not sure what the cross over port is or it's function.
That's too bad about the cast iron paint not holding up, I'm sure that was disappointing. Good to know that may not be not a viable option. Hopefully the ceramic does a decent job against corrosion. I haven't seen long term results though but for $200 it was worth a shot.
I may be overthinking this but if ceramic coating reduces the heat transfer and under hood temperatures, as advertised, the combination of ceramic coated exhaust manifolds and heat stove may actually reduce the effectiveness of warming up the carburetor. I will likely be better than running an open air filter element without the stove and riser set up.
On a side note, DeadheadNM mentioend Letric Limited temperature sending units and I had success going this route when I had incorrect readings.
Funny, this unintended project started a few weeks ago when I discovered a hole in my muffler. Instead of just replacing the muffler I saw it as an opportunity to restore the exhaust/cold start intake system. I'm sure you all know how these projects can snowball.
I appreciate your help with identifying the correct parts that go with the ram horn manifolds.