David & the Giant Peach AKA Chiquita

I had air in my k20 that I got out by parking on a gravel pile and just letting it run for a while. Took 5-10 minutes probably. That was my first thought as well, air pocket.
 
_stucky said:
I had air in my k20 that I got out by parking on a gravel pile and just letting it run for a while. Took 5-10 minutes probably. That was my first thought as well, air pocket.
Click to expand...
I’ve let it run without a cap until warm. 15-20 minutes. I’ll give this a try again.
 
It seems based off temp drop radiator is flowing, can you see coolant moving in top of tank with truck running warmed UP?

It sounds like air bubble but im not small block chevy guy so dont remember where coolant temp sensor is located
 
Is it just the drivers side bank / head heating up? Try shooting the temp gun on the pass side head in the same spot.

I would start with the thermostat cheapest and easiest to replace, maybe put a 180 in there. If it sat for a while the thermostat could be corroded shut or just not working.
 
Well added the transmission cooler. Apparently the tranny was hating life and wasn’t being cooled which then was causing excessive heat running thru the radiator. Cruised it around a good portion of my Sunday routine. Temperature never crossed over into the red :eek: It would float around 210 then I could see when the thermostat would kick in and would drop the temp to The mid range of gauge. I cruised around in 98* in lots of stop and go. Next step, still going to flush the radiator, replace the thermostat for a 180 unit and replace the water pump. But definitely happy I could finally maintain the temp. Going to finish addressing the cooling system then move on to the suspension/ shocks. Definitely drives like Ace Ventura.


4786AF41-47D3-423E-A7A3-6C30D3ADC20C.gif


 
72blazer said:
Possibly. But this is the way the truck came and previous owner didn’t have much info on the motor build so doubt he’d know anything about the tranny. I’ll keep plugging away.
Click to expand...
I tried to figure out how to check the stall, the easiest way (not sure about correct) is to see what the rpm drop is when the truck shifts. As I understand it, the drop is the stall rating.
 
Progress ongoing. I think I’ve made some headway. Replaced the water pump, thermostat, and radiator hoses. I flushed the radiator with plain water twice. Gauge wasn’t moving much from the picture. Gauge got up to about 1/3 revving the engine to 2800 rpm, let off the throttle, and immediately went back down. Put it in reverse and let it idle for 5-6 minutes with no change in position. Drove it down the road for about 10 minutes with no movement. Got back and drained the water. Debating on using some stuff I picked up at Oreillys called Blue Devil Radiator Flush or just filling it with 50/50 already. Anyone with experience using the radiator flush, worth the time? It was $6 and will probably take me a couple of hours driving around to get it to really deep clean per instructions. I did notice small particles in the water but no major rust or debris when draining. It’s a really nice 77* here so I need to get a real test in stop and go traffic in 98* weather. :flipoff2:

DA628BF1-E37A-41F8-A6DC-7E3FF54BC27C.jpeg
 
72blazer said:
Anyone with experience using the radiator flush, worth the time?
Click to expand...
I used radiator flush in the before mentioned 400 sb, that's what washed the head gasket sealer out of the cracked heads and blown head gasket, personally I would skip it.

Have you checked the ignition timing?
 
M92PV4U said:
I used radiator flush in the before mentioned 400 sb, that's what washed the head gasket sealer out of the cracked heads and blown head gasket, personally I would skip it.

Have you checked the ignition timing?
Click to expand...

Yeah I’ve been going back and forth on the flush. I might just run water thru it again and leave the draincock open. I’m planning to cruise it out today and see how she does.

I haven’t checked the timing. Might be on the to do list.


Im getting the itch to pull the top off. :stirthepot:
 
72blazer said:
Anyone with experience using the radiator flush
Click to expand...
I've used radiator flush a couple of times with success, YMMV. I can understand the hesitancy as what M92PV4U points out could be an issue.

But at a minimum, I would do a reverse flush with one of these:

ums%2Fu13%2Fripperbloodshed%2FPrestoneFlushandFill.jpg


This always get the system clean in my experience. Since you're running water currently, letting it drain to the ground shouldn't be an issue.
 
Well last night I drained the hell out of it after the flush. Threw the coolant in. Drove it to work today. Lots of stop and go traffic for 20 minutes. It did spike up once to below the red line then quickly came down. Let the air out several times. After work, I said **** it let’s see what she does on the highway. In stop and go traffic and on the highway she seemed to stay consistently around the 180/190 mark. Cruised at 60 with no issues. Tranny seemed happy too with no smoke noticed.

BDDEF3A8-C45E-419A-9974-D184F840FCE0.jpeg
 
Damn been a bit. She’s been a consistent weekend cruiser ever since Wednesday blew a VE pump. I finally took her on her maiden voyage an hour away over the Thanksgiving break. Meet up with my friend Robert and our dads for breakfast then a town cruise. She drove pretty good, coolant temp would get up to the line just below red so I’d have to back down to 55 on the highway with a strong headwind. I haven’t really done much else but fuel up and cruise. She’s chugging fuel like it’s a beer bong. Continue to love cruising this thing.

My dad’s ‘88 and my buddy’s ‘64

BF9FD0CA-DCDC-4861-BD4B-4E6CC3FB4C41.jpeg


EE9A848F-6A09-4254-AC8C-49FDBFA7973B.jpeg




I added rock lights too. Just kidding, I’m missing front inner fenders. :flipoff2:
F0A9D0BF-3CBC-4FBD-B14F-E6419FB209FF.jpeg
 
You must log in or register to reply here.
Top Back Refresh