Does my engine have a chance of living?

Ewhitaker0020 · Oct 13, 2019

I've attached a couple of photos of what I found while replacing my intake manifold. It seemed to be a bunch of carbonization especially around the heat crossovers. There's were loose 1 inch chunks of the stuff just sitting around along with the caked on pieces.

In the last pic you can see that I was able to get everything cleaned up. I removed the valve covers and they're in decent shape with very minimal to no crud in that area.

My question is what is my next step? I'm thinking I need to pull the oil pan and make sure there isn't a bunch of crud in the pickup screen before I get everything back together and start the truck. Is there anything I can do to help make sure the oil galleys aren't plugged? I cannot afford to replace or rebuild the engine at this time as this is a secondary vehicle and we're trying to pay off debt. I've heard of top end oiling kits to make sure there's no issues with oil starvation.

What do you recommend I do?

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Snoots · Oct 13, 2019

You're better off pulling and hot tanking the whole thing. All engines eventually die.

Ewhitaker0020 · Oct 13, 2019

Snoots said:
You're better off pulling and hot tanking the whole thing. All engines eventually die.

I don't have the money or the means to do this right now.

Snoots · Oct 13, 2019

Put it back together. Change the oil and filter. Run it for 5 minutes. Change the oil and filter again.

shiftpro · Oct 13, 2019

I would at least pull the oil pan and oil pump. Open the pump too, it's easy. Then follow Snooter's advice...

Paladin · Oct 13, 2019

Damn, that's some serious gunk, stop using the Pennzoil! :cheers:

1987 GMC Jimmy · Oct 13, 2019

Holy cow! Are you running a PCV valve? If so, do you check it at regular intervals to make sure it’s working?

Ewhitaker0020 · Oct 13, 2019

1987 GMC Jimmy said:
Holy cow! Are you running a PCV valve? If so, do you check it at regular intervals to make sure it’s working?

The PVC valve seems to be working. It rattles when I shake it and I can blow air through it fine.

Ewhitaker0020 · Oct 13, 2019

shiftpro said:
I would at least pull the oil pan and oil pump. Open the pump too, it's easy. Then follow Snooter's advice...

I plan on pulling the oil pan and possibly replacing the oil pump and screen just to make sure.

Craig 85 · Oct 13, 2019

My last truck had a lot of sludge in it when I bought it. It developed a lifter tick at cold starts when the temp was below 60 degrees. I ran 1 quart of Marvelous Mystery Oil for 2 oil changes and the tick went away.

I would maybe run the Chevy 2 -Qt oil filter for a couple of rounds to pick up more gunk.

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87_stepper · Oct 13, 2019

Ewhitaker0020 said:
I've attached a couple of photos of what I found while replacing my intake manifold. It seemed to be a bunch of carbonization especially around the heat crossovers. There's were loose 1 inch chunks of the stuff just sitting around along with the caked on pieces.

In the last pic you can see that I was able to get everything cleaned up. I removed the valve covers and they're in decent shape with very minimal to no crud in that area.

My question is what is my next step? I'm thinking I need to pull the oil pan and make sure there isn't a bunch of crud in the pickup screen before I get everything back together and start the truck. Is there anything I can do to help make sure the oil galleys aren't plugged? I cannot afford to replace or rebuild the engine at this time as this is a secondary vehicle and we're trying to pay off debt. I've heard of top end oiling kits to make sure there's no issues with oil starvation.

What do you recommend I do?

You must be registered for see images attach

You must be registered for see images attach

You must be registered for see images attach

Clean up exactly like you did buy some 15-40 and a few filters mix the 15-40w with some diesel 50-50 run at idle for a couple minutes pull the filter cut open, drain repeat twice I have had great results also used ATF which is high in detergents.

shiftpro · Oct 13, 2019

Craig 85 said:
My last truck had a lot of sludge in it when I bought it. It developed a lifter tick at cold starts when the temp was below 60 degrees. I ran 1 quart of Marvelous Mystery Oil for 2 oil changes and the tick went away.

I would maybe run the Chevy 2 -Qt oil filter for a couple of rounds to pick up more gunk.

You must be registered for see images attach

You must be registered for see images attach

Thanks I've been trying to source out these large filters.Auto parts store no help... they want to know color the vehicle is...!

Snoots · Oct 13, 2019

Just for good measure, put a BIG magnet on the oil filter.

Go and buy yourself a magnetic drain plug too.

Paladin · Oct 13, 2019

Snoots said:
Just for good measure, put a BIG magnet on the oil filter.

Go and buy yourself a magnetic drain plug too.

X2 excellent advice! :cheers:

PrairieDrifter · Oct 14, 2019

I’ve seen this buildup on a lot of old motors. It’s probably a tired motor but get it cleaned up as best you can and run it for as long as it’ll go

The crossovers are a VERY common buildup area. Seen it a hundred times easy, as long as the valves and their runners aren’t too bad they should clean up with some solvent.

Does my engine have a chance of living?

Ewhitaker0020

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Snoots

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Ewhitaker0020

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Snoots

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shiftpro

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Paladin

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1987 GMC Jimmy

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Ewhitaker0020

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Ewhitaker0020

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Craig 85

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87_stepper

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