Should I just give up on this engine?
#11
06-01-2023, 09:40 AM
Your tapping sound may be a slipped sleeve. When "Winston" blew a head gasket I tore everything down. I discovered that my #4 cylinder sleeve had slipped up by about 2mm above the block. Using dry ice and a steel plate with lots of washers and the old head bolts, I was able to push the sleeve back flush with the block ( check my posts about the project). I had a tick for a long long time before hand, the HG breach was on the drivers side. I still have the tick, gets bad at times leading me to believe that my ticking may emanate from the bottom the engine, Just have not had time to look into. I did my HG's etc. 50k miles ago FWIW.
Last edited by mcaramb; 06-01-2023 at 10:03 AM.
#12
06-01-2023, 10:00 AM
Based on your account of the first few minutes of run time, I am concerned about your cam/lifters. New lifters require a 15-30 minute (depending on who you ask) break in period. You'd only want to spin the motor over 20-30 seconds prior to starting it. You really want it to start fast and clean. Immediately bring it up to 3000 rpm and for roughly the next 20 minutes you rev it up and down between 2000 and 3000 rpm. That keeps oil on the cam and lifters and allows them to seat together without eating each other. At idle and while cranking, the cam and lifters see virtually zero oil which is why you want to minimize your cranking time prior to first start. 20-30 seconds just to get the oil pump to catch oil.
I think my idea of running an endoscope up the spark plug holes will tell me if it's a valve collided with the piston or not. At least that's an easy check and won't be much of a drain on my sanity lol
Last edited by mcaramb; 06-01-2023 at 10:07 AM.
#14
06-01-2023, 12:47 PM
Yup. Kinda where I'm leaning. Looking for an engine now, but the car is 85 miles away still at my moms, so I can't check the sticker to recall the size of the engine which I believe they made in 4.0 and 4.6L. Do you know a way to tell off hand if the 2001 D2 is 4.0 or 4,6L I can't remember which is was.
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Alex_M (06-01-2023)
#15
06-01-2023, 01:11 PM
Recovery Vehicle
Yup. Kinda where I'm leaning. Looking for an engine now, but the car is 85 miles away still at my moms, so I can't check the sticker to recall the size of the engine which I believe they made in 4.0 and 4.6L. Do you know a way to tell off hand if the 2001 D2 is 4.0 or 4,6L I can't remember which is was.
really though, either engine could be dropped into an '01. the 4.0s are thought to be more reliable engines over the 4.6s.
The following users liked this post:
Alex_M (06-01-2023)
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