340 oil galley plugs
I'm looking for verification on an oil plug problem. My brand new 340 build destroyed the main bearings in 6 hours running. Found metal on the magnetic pan plug. Changed the oil 4 times thinking the machine shop didn't clean the block and it was flushing but the metal kept coming. I know I should have torn it down on the first inspection so you don't need to bring that up, lol.
The crank should clean up at .010". Back to the plug issue. When I got it out of the shop the first time I noticed the two drive in plugs under the cam plate were missing and the two allen plugs at the back of the oil galleys were out too. Spoke to the shop and they couldn't understand why they were still out. I installed those but didn't notice the plug wasn't in the back of the block near the oil filter and during priming pumped 4 quarts of oil into the bell housing and had to have the clutch refaced. Now at the second trip to the shop they asked if I removed the plug that would be under the oil filter or the 90* adapter. Told them that I didn't remove any except water plugs. So the question is, is there supposed to be a plug under the filter (the hole is threaded) I can't remember seeing one or not? Do you think having that one missing would effect the main oiling? Looks like it goes to the lifter galley. They are blaming over fueling so getting fuel in the oil. I have a FITech system that was still learning. I'm thinking trash left in the block from boring and honing or having to crank it a lot at first start because of a ignition issue. They are being helpful on parts cost and doing the block work free, (feeling guilty maybe). Just don't need the cost of another tear-down. By the way when it started cold the pressure was 75#, idled hot at 35# on 10 w 30.
Larry
I'm looking for verification on an oil plug problem. My brand new 340 build destroyed the main bearings in 6 hours running. Found metal on the magnetic pan plug. Changed the oil 4 times thinking the machine shop didn't clean the block and it was flushing but the metal kept coming. I know I should have torn it down on the first inspection so you don't need to bring that up, lol.
The crank should clean up at .010". Back to the plug issue. When I got it out of the shop the first time I noticed the two drive in plugs under the cam plate were missing and the two allen plugs at the back of the oil galleys were out too. Spoke to the shop and they couldn't understand why they were still out. I installed those but didn't notice the plug wasn't in the back of the block near the oil filter and during priming pumped 4 quarts of oil into the bell housing and had to have the clutch refaced. Now at the second trip to the shop they asked if I removed the plug that would be under the oil filter or the 90* adapter. Told them that I didn't remove any except water plugs. So the question is, is there supposed to be a plug under the filter (the hole is threaded) I can't remember seeing one or not? Do you think having that one missing would effect the main oiling? Looks like it goes to the lifter galley. They are blaming over fueling so getting fuel in the oil. I have a FITech system that was still learning. I'm thinking trash left in the block from boring and honing or having to crank it a lot at first start because of a ignition issue. They are being helpful on parts cost and doing the block work free, (feeling guilty maybe). Just don't need the cost of another tear-down. By the way when it started cold the pressure was 75#, idled hot at 35# on 10 w 30.
Larry
