need hemtt Detroit Diesel 8v92ta mechanic near Sacramento

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bigmike

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Dixon CA.
Update 2/4/2020:
dropped the #3 and #4 mains. Bearings looked washed out just like the connecting rod bearings. Journals look great. Ordering a complete out of frame rebuild along with an oil cooler and 2 new connecting rods for the two cylinders that took the brunt of the damage. Still pulling the supercharger to check and clean it.
 

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bigmike

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Dixon CA.
Update 2/8/2020: pulled the turbo and supercharger along with the air compressor. Had my first failure. I broke the top bolt of the engine lifting plate. I needed it moved to get the fuel pump removed. I ended up cutting it off. If I need to lift out the engine, I’ll find another way. Otherwise, ready to pull the aftercooler.
 

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davidb56

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Bonners Ferry Idaho
I appreciate your up dates. I ALMOST wish I was visiting Ca so I could help. But I fled from there 8 years ago the day after I retired from EBMUD. (Pardee dam section)
 

bigmike

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Location
Dixon CA.
Update 2/9/2020
pulled the aftercooler today. no visible signs of leakage. Getting a quote on the complete rebuild kit plus 2 connecting rods, oil cooler core, spin on oil filter adapter and a rebuilt water pump. Bracing for price shock impact.
 

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JDToumanian

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Phelan, CA
Hey Mike!

Wow, you're really digging deep into that Detroit! I've been away from here, got busy on other projects, and then my wife was in the hospital since November so I was a bit occupied, but I did see your PM that you got a new HEMTT... Awesome!

Instead of a spin-on oil filter adapter, you can get a direct spin-on replacement housing, this is for the 92-series only... See attached pic. It's Detroit part number 5104413. They're out there on Google. It's from HET and PLS trucks.

Boy those liners really got cooked. The 92 series is particularly sensitive to heat, and they don't like to be lugged. On a mountain grade, a good rule of thumb is that you should be holding your speed without the pedal to the floor. If you do put the pedal to the floor, you should still be able to accelerate up the hill. If you can only hold speed with your foot to the floor, or you can't accelerate anymore when you do floor it, it's probably time to let the speed come down a bit and drop to a lower gear.

Obviously you've already been told about Bus Grease Monkey... I really like his videos, it's amazing how fast he can do an inframe on a 92...

My HEMTT is down as well... Radiator replacement. It was dripping when I bought the truck, and I managed to find a NOS replacement. The leak mysteriously stopped for a while, but then it started gushing out a steady stream from the middle of the core. I'd love to attend the Plymouth event but....... I doubt it will happen. While the radiator is out, I'm doing a bunch of other work. Belts, hoses, water pump, air conditioning, block heater, coolant filter, and I'm going to paint the engine.

Regards,
Jon
 

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Last edited:

bigmike

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Dixon CA.
Jon,
OMG, it’s so good to hear from you. Sorry to hear about your wife, I hope everything worked out well. Once the motor is rebuilt, I can check the tranny to see about lugging the engine Otherwise I’m focused on the rebuild. More updates are coming.
 
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