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1
Pre-Cup Needed
I checked all the pistons while I had the heads off and they all said .040 on them and .040 was stamped on both sides of the block. It does kind of seem like a balance issue. If I disconnect the fuel shut off solenoid and have a helper crank the engine over while I hold my hand to the exhaust it...- 19887.3IDI
- Post #46
- Forum: 6.9L IH & 7.3L IDI Diesels
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1
Pre-Cup Needed
Its not a full chuff its very slight. The valve guides are good I checked that when I had the heads off. I also lapped the valves. As far as I know the cam is stock its the same one as jasper put in. I did put a new set of lifters in but it still shakes. I did notice less lifter chatter...- 19887.3IDI
- Post #45
- Forum: 6.9L IH & 7.3L IDI Diesels
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1
Pre-Cup Needed
Yes the lowest is 500psi and the highest is 515psi and all the others are pretty much right at 500psi I am going to double check that though. I wouldn't think 15 psi difference would cause it to shake as bad as it does you can stand back and watch the whole truck shake.- 19887.3IDI
- Post #41
- Forum: 6.9L IH & 7.3L IDI Diesels
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1
Pre-Cup Needed
Would that make that slight chuff in the exhaust? Because if I put my hand up to the exhaust I can feel that there is something different with one cylinder from all the others. speedwrench72 on FTE suggested that there could be a lobe down on the cam so ill degree it and see if I can find any...- 19887.3IDI
- Post #39
- Forum: 6.9L IH & 7.3L IDI Diesels
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1
Pre-Cup Needed
Well I got a matching pre-cup, installed it and it is flush with the head surface. I then reassembled the engine and fired it up and it still shakes the same. Needless to say I'm starting to get frustrated with this thing. I messed with injectors some more buy finding one from my spare sets I...- 19887.3IDI
- Post #37
- Forum: 6.9L IH & 7.3L IDI Diesels
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1
Pre-Cup Needed
Where did you find them for $7 each?- 19887.3IDI
- Post #19
- Forum: 6.9L IH & 7.3L IDI Diesels
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1
Pre-Cup Needed
Ill take A2 if that's ok with you.- 19887.3IDI
- Post #12
- Forum: 6.9L IH & 7.3L IDI Diesels
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1
Pre-Cup Needed
Ya I know its a stretch but its the only thing I can find that is different from the other cylinders in the heads and the block. Its not just a rough idle it shakes all the way up to about 2,000 rpm than after that it starts to smooth out a little but its still kind of rough at higher rpm as...- 19887.3IDI
- Post #10
- Forum: 6.9L IH & 7.3L IDI Diesels
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1
Pre-Cup Needed
The shop I got the pump from was USDieselParts.com. When I push the plunger in on the side of the pump the engine does sound different and smokes blue but it doesn't change the shaking it might run a little rougher too but it still has the same shake along with it. I got the injectors from...- 19887.3IDI
- Post #7
- Forum: 6.9L IH & 7.3L IDI Diesels
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1
Pre-Cup Needed
Here is a thread that I have going over at FTE that should answer all your questions and more. http://www.ford-trucks.com/forums/1300299-shaking-engine.html- 19887.3IDI
- Post #4
- Forum: 6.9L IH & 7.3L IDI Diesels
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1
Pre-Cup Needed
Does anyone have a pre-cup exactly the same as this one that would be willing to sell to me? I only need one to match the other 7 because there is one that is different and causing my engine to shake.- 19887.3IDI
- Thread
- Replies: 73
- Forum: 6.9L IH & 7.3L IDI Diesels
