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Author Topic: 6v92 engine repair Indianapolis?  (Read 2676 times)
luvrbus
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« Reply #30 on: November 01, 2017, 08:18:31 AM »

That 1 liner and piston set needs to be replaced so pull the pan the rod is probably bent too like Geoff said check all the bearing.
Have the shop check the others if they check out, it is common to replace 1 liner or all the liners (3 or 4) on 1 side of the V engines it doesn't hurt a thing   
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B_K
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« Reply #31 on: November 01, 2017, 06:52:57 PM »

Scott probably has a liner kit in stock. He has a bunch of DD parts he bought a little while back. Not sure about a head.
I have a 6V92 in my shop that the turbo went bad on and we were getting water out of one side of it afterward. I have never taken it apart, but one head may or not be OK.
I'm with Clifford and Geoff that the pan needs to come off and check the bearings and rods. Pretty sure Scott could help supply or locate parts needed. (after all that is his backyard. BTW I have no knowledge about the shop doing the work, as I moved out of INDY 30 yrs ago and I lived on the west side in the Speedway area)
Grin  BK  Grin
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aaronjweiss
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« Reply #32 on: November 08, 2017, 06:25:26 PM »

Quick update: the shop hasn't finished the engine yet, so we went ahead and rented a moving truck & van to start off the tour (which is costing us lots of $ on top of the engine repair  Embarrassed). They replaced the broken valves, and 3 cylinders & sleeves and bearings---today they started the engine and it ran w/ no smoke but now no oil pressure (they double checked w/ mechanical gauge). They think it's either the bearings were the wrong size or a bad oil pressure regulator---any other ideas of what this might be? They're going to open up the oil pan tomorrow, I just figured it'd be worth asking on here in case there's other possibilities they might've missed.

Thank you! A.
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Aaron W.
1990 MCI 102c3
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chessie4905
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« Reply #33 on: November 08, 2017, 06:32:42 PM »

I'd be disappointed if they hadn't checked bearing clearance before putting together.
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eagle19952
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« Reply #34 on: November 08, 2017, 06:42:58 PM »

I'd be disappointed if they hadn't checked bearing clearance before putting together.

if they didn't check before ordering parts...and again before putting the pan back on...

i'd be a lot more than disappointed. Angry
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Donald PH
1978 Model 05 Eagle w/Torsilastic Suspension,8V71 NA, DDAllison on 24.5's 12kw Kubota.
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Scott & Heather
Scott & Heather's buses: MCI-9 & MCI-102
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« Reply #35 on: November 08, 2017, 09:50:17 PM »

Ugh I hope they know what they are doing working on a two stroke.


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Scott & Heather
1984 MCI 9 6V92-turbo with 9 inch roof raise (SOLD)
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« Reply #36 on: November 08, 2017, 10:58:40 PM »

Ugh! Zero oil pressure? Something ain't right with this picture. Maybe something wrong with the oil flow up top, but generally I'd say, for them to tell you they ran the engine with no oil pressure is a bad, bad sign.
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chessie4905
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« Reply #37 on: November 09, 2017, 03:52:06 AM »

They did use straight 40 weight or 30 weight for winter? Was it zero or very low? At idle or higher rpms?
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GMC h8h 649#028 (4905)
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« Reply #38 on: November 09, 2017, 01:28:27 PM »

aaronjweiss  What was found once they dropped the pan?
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Thanks,
Brian Stanton
American Fleet Inc.
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aaronjweiss
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« Reply #39 on: November 09, 2017, 01:42:53 PM »

Just got word they replaced the oil pressure regulator valve and now we've got pressure again. A week and a half and $6,500 later, looks like we're getting our bus back, my friend's currently driving it to our show in Columbus, OH. All things considered, I'm feeling good.

To chessie4905's question, they're using straight 40 weight, which is what we always use---is 30 weight a good option in cold conditions?

Also, we sometimes pour some of that Lucas oil stableizer in there--any opinions on the benefit/harm of that product?

Thanks again for all the input fellas!
  -Aaron
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Aaron W.
1990 MCI 102c3
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chessie4905
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« Reply #40 on: November 09, 2017, 04:57:49 PM »

That oil stabilizer is like STP, and slightly thickens oil and raises oil pressure slightly. 30 weight is recommended by DDA when operating temps are below 32F or something like that.
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GMC h8h 649#028 (4905)
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eagle19952
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« Reply #41 on: November 09, 2017, 08:09:27 PM »

we used 30 wt in the Arctic.

a good motor with good compression (which yours has to be better) and decent battery i would run 40 wt down to 10 degrees or even 0.
provided you warm it up at least long enough to build air.
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Donald PH
1978 Model 05 Eagle w/Torsilastic Suspension,8V71 NA, DDAllison on 24.5's 12kw Kubota.
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sledhead
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« Reply #42 on: November 10, 2017, 04:37:42 AM »

I would not put the lucas in until the new piston , sleeves are broke in

dave
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dave , karen
1990 mci 102c  6v92 ta ht740  kit,living room slide .... sold
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eagle19952
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« Reply #43 on: November 10, 2017, 11:22:53 AM »

I would not put the lucas in until the new piston , sleeves are broke in

dave

i wouldn't use it even then.
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Donald PH
1978 Model 05 Eagle w/Torsilastic Suspension,8V71 NA, DDAllison on 24.5's 12kw Kubota.
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buswarrior
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« Reply #44 on: November 15, 2017, 05:02:16 AM »

Busnuts in the lower 48, just use 40 wt.

What busnut in colder areas of the lower 48 wouldn't have some form of engine heater?

Find something else to obsess over, proudly run 40 wt and plug in an hour before starting if it is sub-freezing?

happy coaching!
buswarrior
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Frozen North, Greater Toronto Area
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