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Got it! Upper timing gear. Now, the big question is whether or not this is just leftover debris from a long resolved issue or if there’s a minor disaster lurking beneath my timing cover. The engine ran fine a week ago so it’s hard to imagine my timing gear is completely smoked. I guess the only way to find out, for sure, is to take a look under the timing cover…unless someone has another suggestion. 🤔
If this is your gear I see all kinds of issues with it and would change it ASAP.
If this is your gear I see all kinds of issues with it and would change it ASAP.
a lot of slop. The first indication of a stretch timing chain on a small block with big block Chevy is that the fuel pump side of the cover is usually got a bulge in it, and the paints gone usually means the timing chain was slapping up against the cover
You had mentioned you’re going to replace that motor or rebuild it. I recommend a 327, 350 hp camshaft from Chevrolet. I really wake that small block up for Street Croix with a good LT one intake manifold good combination for a strong speaker that I’ve done many times over in the past along with a little bit ahead work such as 194 intakes and set a 160 exhaust and I’m shredding the bowl area really wake that motor up
a lot of slop. The first indication of a stretch timing chain on a small block with big block Chevy is that the fuel pump side of the cover is usually got a bulge in it, and the paints gone usually means the timing chain was slapping up against the cover
Not only that but cracks in the plastic gear, missing pieces etc.
This is a standard, maybe 5000 rpm, street engine.
As long as it has 15psi at hot idle, it does not need any more.
There is zero benefit, on a street engine, and it will cost some HP.
Now if the oil psi is already low, at idle, you have other issues anyway.
Got it! Upper timing gear. Now, the big question is whether or not this is just leftover debris from a long resolved issue or if there’s a minor disaster lurking beneath my timing cover. The engine ran fine a week ago so it’s hard to imagine my timing gear is completely smoked. I guess the only way to find out, for sure, is to take a look under the timing cover…unless someone has another suggestion. 🤔
Replace that timing gear set ASAP with a nice double roller. I am seeing cracks and missing chunks already. That gear is on borrowed time right now.
