My Gen 5 454 has gone down 4 times in 3 months
#11
artselectricinc.com
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I have went through the same scenario even using different builders. The issue was the bypass valves. Non marine guys can build a good motor and ruin it by putting in the two 11lb valves instead of a single 35lb valve. The last go around I plugged them off. We'll see how this set of engines lasts.
#13
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This really doesnt matter, but if I was you, I would make sure as someone else asked...that there are NO EAGLE parts being used and then the second thing I would do is find a better "reputable" builder. In my thinking, there is no excuse for what you are dealing with on this motor...especially if they have had to go back and mess with it 4 times.
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This really doesnt matter, but if I was you, I would make sure as someone else asked...that there are NO EAGLE parts being used and then the second thing I would do is find a better "reputable" builder. In my thinking, there is no excuse for what you are dealing with on this motor...especially if they have had to go back and mess with it 4 times.
#15
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No the machine shop is doing the assembly, please let mek now what should in your estimation or expertise should the crank and rod bearing clearances be?
#18
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And the most important is when he installs the rod bolts and if he is using new rod bolts everytime he needs to stretch the ROD BOLTS first or they will come loose then the engine will start knocking..
Does he use a rod bolt stretching gauge ??? or does he even know..
Does he use a rod bolt stretching gauge ??? or does he even know..
#19
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I would look into what you're doing with the bypass valves. You need to be running a 30psi bypass, if you are running a external cooler/filter adapter, which I am sure you are. using the 11psi ones, not only are you probably bypassing the filter, you're also bypassing the oil cooler and main galley.
The bypass, in the center behind where the filter would thread onto in the block, goes directly to your main oil galley(return feed). If your bypassing your main oil galley, I can see where your problems are coming from. The other bypass (next to that one) is the oil filter bypass. Use GM#25161284 30lb valve there, and remove the valve in the center so the oil will flow directly to the main galley after its filtered.
The bypass, in the center behind where the filter would thread onto in the block, goes directly to your main oil galley(return feed). If your bypassing your main oil galley, I can see where your problems are coming from. The other bypass (next to that one) is the oil filter bypass. Use GM#25161284 30lb valve there, and remove the valve in the center so the oil will flow directly to the main galley after its filtered.
Last edited by MILD THUNDER; 09-06-2012 at 07:49 AM.