Rzeppa
Rising Sun Member
Ha! I had forgotten about that thread.
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Engine knocking – 1972 FJ-40 F Engine
- Thread starter 72 FJ40
- Start date
LARGEONE
Rising Sun Member
Crap. Was cheering for something less. But now you know what you’re into.
wesintl
Moderator
Shoot! You might as well pull the bearing cap and show us 
. Have to see how bad the crank scoring is. The gasket is no big deal to scrape off.
. Have to see how bad the crank scoring is. The gasket is no big deal to scrape off.should the bearing cap just slide off when I remove the bolts? I'm having problems removing the rod bearing cap (seems stuck) ??? I'm doing this by myself so cant see what is going on when I hand crank it. I removed the plugs and can hand turn the crankshaft. Is there a trick to getting the bearing cap off? Engine is still in the 40...Shoot! You might as well pull the bearing cap and show us
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Capriblue45
Rising Sun Member
- Joined
- May 28, 2023
- Messages
- 416
don't turn it over with the cap bolts removed, take a brass drift and tap the ends of the bolts to break the tension of the oil on the crank.
Thanks. I'll try that tomorrow
I dropped the pan and it came off no problem. Then I looked at the rod bearings and replaced them all… Thanks for the advice on the brass drift works like a charm. It was kind of crazy because it was the bearing on the fourth cylinder and that was the last one that I checked. The bearing had spun, and needed to be pried away from the cap. I replaced all of the bearings and the knock has stopped the 40 is back and up and going.
The most difficult part of the job was getting the oil pan back on. I got an OEM oil pan gasket from groove Toyota and fixed it to the pan overnight. Even with the help of a floor jack it was difficult. I definitely suggest that you get for longer bolts (around 2 inches) to center it up and then screw in the the correct bolts. Jeff Z was very helpful in coaching me. I've driven around town a bit… And just did a couple miles on the highway and it seems to be fine. Thanks for your help everyone.
The most difficult part of the job was getting the oil pan back on. I got an OEM oil pan gasket from groove Toyota and fixed it to the pan overnight. Even with the help of a floor jack it was difficult. I definitely suggest that you get for longer bolts (around 2 inches) to center it up and then screw in the the correct bolts. Jeff Z was very helpful in coaching me. I've driven around town a bit… And just did a couple miles on the highway and it seems to be fine. Thanks for your help everyone.
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wesintl
Moderator
Bam there you go, nice work!
fjc man
Trail Ready
You didn’t need to do anything to the crankshaft?
There were some superficial scratches on the crank wear cylinder for attached and the bearing went bad but I measured it and it appeared to be the right size I also checked it with plastigauge and it was in tolerance. I did hit it with some high grit emery cloth but I don't think that really did anything
Rzeppa
Rising Sun Member
In this situation he was able to stop driving in time and prevent further damage. The crank is hardened and is typically the last thing that gets damaged when a rod bearing wears out and spins. Fortunately he also didn't have any issues with the rod or cap either. He should be good to go for a long time.