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Old 04-24-2020, 08:39 PM #31
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Quote:
Originally Posted by waypoint View Post
Valve job seems like a deep rabbit hole, considering the resulting change in cam lobe clearance and the parts needed to adjust it. I dealt w/ this on my prior '03 Tacoma 4 cylinder, which had hardened shims on top of the buckets and no need to remove the cam to change them. My understanding of the 4.0L is that the entire bucket is replaced to adjust clearance.
That's fact, I only had to grind the exhaust valves so in theory I'll have more of a challenge with 12 buckets. Believe me that crossed my mind too many times before I pulled the trigger on grind the valves and seats.
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1987 22R-E, SR5. 5 Speed, 31's BFG A/T, stock wheels. 4.56 Gears, Rear Detroit locker Front True Track. 1.5" BJ Spacers & Extended Shackles in the rear.

1992 3.0, SR5. 5 Speed. 31's BFG M/T, stock wheels. 4.30 Gears-NON ADD- manual hubs, Elocker, 1.5" BJ Spacers, Moog springs w/ spacers. Sold
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Old 04-24-2020, 08:43 PM #32
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Originally Posted by Captsolo View Post
How many miles on this 2008? Was it lack of maintenance (oil changes) that caused the failure?
I think lack of maintenance and a belief the truck and motor will take anything you can do to it because its a truck.
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1987 22R-E, SR5. 5 Speed, 31's BFG A/T, stock wheels. 4.56 Gears, Rear Detroit locker Front True Track. 1.5" BJ Spacers & Extended Shackles in the rear.

1992 3.0, SR5. 5 Speed. 31's BFG M/T, stock wheels. 4.30 Gears-NON ADD- manual hubs, Elocker, 1.5" BJ Spacers, Moog springs w/ spacers. Sold
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Old 04-24-2020, 08:58 PM #33
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Quote:
Originally Posted by waypoint View Post
Valve job seems like a deep rabbit hole, considering the resulting change in cam lobe clearance and the parts needed to adjust it. I dealt w/ this on my prior '03 Tacoma 4 cylinder, which had hardened shims on top of the buckets and no need to remove the cam to change them. My understanding of the 4.0L is that the entire bucket is replaced to adjust clearance.
The buckets
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Rebuidling 4.0-img_3778-jpg  Rebuidling 4.0-img_3785-jpg 
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1987 22R-E, SR5. 5 Speed, 31's BFG A/T, stock wheels. 4.56 Gears, Rear Detroit locker Front True Track. 1.5" BJ Spacers & Extended Shackles in the rear.

1992 3.0, SR5. 5 Speed. 31's BFG M/T, stock wheels. 4.30 Gears-NON ADD- manual hubs, Elocker, 1.5" BJ Spacers, Moog springs w/ spacers. Sold
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Old 04-28-2020, 10:57 PM #34
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The valves and seats are lapped and ready for reassembly. Heads are cleaned (less some staining) guides clean. Cleaned out all of the oil passages and polished a couple caps because of the dirty oil. I cleaned the cams and VVT controllers and they seem to work fine.
My plan is to assemble this weekend and hopefully the lifter clearances can be set with the lifters I have. $15 a lifter can get expensive.
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Rebuidling 4.0-img_3801-jpg  Rebuidling 4.0-img_3797-jpg 
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1987 22R-E, SR5. 5 Speed, 31's BFG A/T, stock wheels. 4.56 Gears, Rear Detroit locker Front True Track. 1.5" BJ Spacers & Extended Shackles in the rear.

1992 3.0, SR5. 5 Speed. 31's BFG M/T, stock wheels. 4.30 Gears-NON ADD- manual hubs, Elocker, 1.5" BJ Spacers, Moog springs w/ spacers. Sold
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Old 04-28-2020, 11:04 PM #35
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New wrist pins and bushings, the shop had to hone to the correct fit.
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Rebuidling 4.0-img_3793a-jpg  Rebuidling 4.0-img_3795a-jpg 
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1987 22R-E, SR5. 5 Speed, 31's BFG A/T, stock wheels. 4.56 Gears, Rear Detroit locker Front True Track. 1.5" BJ Spacers & Extended Shackles in the rear.

1992 3.0, SR5. 5 Speed. 31's BFG M/T, stock wheels. 4.30 Gears-NON ADD- manual hubs, Elocker, 1.5" BJ Spacers, Moog springs w/ spacers. Sold
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Old 05-03-2020, 12:50 AM #36
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Odd, the main bearings new and the ones that I pulled from the engine don't have the notch on the upper bearing half. I'll call the shop on Monday, anyone see or use these before? I really don't know if the motor was rebuilt before but I sure don't want to take a chance.
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1987 22R-E, SR5. 5 Speed, 31's BFG A/T, stock wheels. 4.56 Gears, Rear Detroit locker Front True Track. 1.5" BJ Spacers & Extended Shackles in the rear.

1992 3.0, SR5. 5 Speed. 31's BFG M/T, stock wheels. 4.30 Gears-NON ADD- manual hubs, Elocker, 1.5" BJ Spacers, Moog springs w/ spacers. Sold
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Old 05-09-2020, 08:23 PM #37
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screwed up, can't remember breaking a ring before but I did this time. $49 mistake. 5 in with no problems now its time to wait Tuesday.
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Rebuidling 4.0-img_3848-jpg 
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1987 22R-E, SR5. 5 Speed, 31's BFG A/T, stock wheels. 4.56 Gears, Rear Detroit locker Front True Track. 1.5" BJ Spacers & Extended Shackles in the rear.

1992 3.0, SR5. 5 Speed. 31's BFG M/T, stock wheels. 4.30 Gears-NON ADD- manual hubs, Elocker, 1.5" BJ Spacers, Moog springs w/ spacers. Sold
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Old 05-10-2020, 12:50 PM #38
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Torqued mains and rods just waiting for the replacement ring to finish # 6
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Rebuidling 4.0-img_3850-jpg 
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1987 22R-E, SR5. 5 Speed, 31's BFG A/T, stock wheels. 4.56 Gears, Rear Detroit locker Front True Track. 1.5" BJ Spacers & Extended Shackles in the rear.

1992 3.0, SR5. 5 Speed. 31's BFG M/T, stock wheels. 4.30 Gears-NON ADD- manual hubs, Elocker, 1.5" BJ Spacers, Moog springs w/ spacers. Sold
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Old 05-10-2020, 12:55 PM #39
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Quote:
Originally Posted by kc15842 View Post
screwed up, can't remember breaking a ring before but I did this time. $49 mistake. 5 in with no problems now its time to wait Tuesday.
Were you spiraling them onto the pistons, or using a ring expander?
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Old 05-10-2020, 01:16 PM #40
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expander, the upper oil ring must have caught the edge of the ring and didn't sit as I pushed into the cylinder, my fault. The others went fine.
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1987 22R-E, SR5. 5 Speed, 31's BFG A/T, stock wheels. 4.56 Gears, Rear Detroit locker Front True Track. 1.5" BJ Spacers & Extended Shackles in the rear.

1992 3.0, SR5. 5 Speed. 31's BFG M/T, stock wheels. 4.30 Gears-NON ADD- manual hubs, Elocker, 1.5" BJ Spacers, Moog springs w/ spacers. Sold
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Old 05-19-2020, 12:51 AM #41
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OK, I knew once I had the exhaust valves and seats machined and I'd need to play with the lifter clearance, so true, ~ .003 difference from the minimum clearance of .011.
The intakes, 11 of 12 were right in there at .008.
I ordered several new lifters today and hopefully by the end of the week I cn button up the heads.
I also did a leak down, The LH was outstanding between 8-10%. RH #3 one of the exhaust valves needs be lapped again. I hope its nothing more than that.
Slowly
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Rebuidling 4.0-img_3869-jpg  Rebuidling 4.0-img_3874a-jpg 
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1987 22R-E, SR5. 5 Speed, 31's BFG A/T, stock wheels. 4.56 Gears, Rear Detroit locker Front True Track. 1.5" BJ Spacers & Extended Shackles in the rear.

1992 3.0, SR5. 5 Speed. 31's BFG M/T, stock wheels. 4.30 Gears-NON ADD- manual hubs, Elocker, 1.5" BJ Spacers, Moog springs w/ spacers. Sold
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Old 05-19-2020, 01:18 PM #42
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Wow, 6-bolt mains? Did you figure out the bearing notch issue?
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Old 05-19-2020, 11:49 PM #43
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Wow, 6-bolt mains? Did you figure out the bearing notch issue?
The used bearings (may not be original)also did not have the notch so I made sure they were oil free on the back side and snapped in place.
Another newer feature is no distributor and no way to prime the oil pump so the priming will be interesting. The nice thing is the oil filter is mounted above the engine so the system will have some pressure loading the oil pump. I'll spend more time making sure the system is totally primed for start up.
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1987 22R-E, SR5. 5 Speed, 31's BFG A/T, stock wheels. 4.56 Gears, Rear Detroit locker Front True Track. 1.5" BJ Spacers & Extended Shackles in the rear.

1992 3.0, SR5. 5 Speed. 31's BFG M/T, stock wheels. 4.30 Gears-NON ADD- manual hubs, Elocker, 1.5" BJ Spacers, Moog springs w/ spacers. Sold
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Old 05-31-2020, 03:08 PM #44
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lifter clearance
So, 12 exhaust valves and seats ground and there was no way around buying 12 new lifters. Waiting for the last 3. The process isn't difficult especially while on the bench.
I should finally be able to wrap up the heads and bolt up.
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1987 22R-E, SR5. 5 Speed, 31's BFG A/T, stock wheels. 4.56 Gears, Rear Detroit locker Front True Track. 1.5" BJ Spacers & Extended Shackles in the rear.

1992 3.0, SR5. 5 Speed. 31's BFG M/T, stock wheels. 4.30 Gears-NON ADD- manual hubs, Elocker, 1.5" BJ Spacers, Moog springs w/ spacers. Sold
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Old 06-06-2020, 12:30 PM #45
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OK, finally got the lifter clearance dialed in and the new cam bearing came in.
Did the final clean on the block and head and I think I'm final ready to install the heads and move on, NOT. I figured I should do a read of the FSM to see if there are any things I hadn't thought of and I find I need to use ThreeBond 1207B to the front edge of the head gasket prior to assembly, damn.
I don't see why it needs to be applied at this stage.
Ordered the ThreeBond on Amazon and I wait another couple days.
Attached Images
Rebuidling 4.0-img_3912-jpg  Rebuidling 4.0-img_3914a-jpg  Rebuidling 4.0-img_3915a-jpg  Rebuidling 4.0-img_3913-jpg 
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1987 22R-E, SR5. 5 Speed, 31's BFG A/T, stock wheels. 4.56 Gears, Rear Detroit locker Front True Track. 1.5" BJ Spacers & Extended Shackles in the rear.

1992 3.0, SR5. 5 Speed. 31's BFG M/T, stock wheels. 4.30 Gears-NON ADD- manual hubs, Elocker, 1.5" BJ Spacers, Moog springs w/ spacers. Sold
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