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New Newwell (new to me)
#11

Update, The genset is a diesel after all, Yanmar and it looks like it runs off the aux tank. We filled that and it fired right up. The genset exhaust is broken right behind the the genset itself, looks like it might be at the flex joint? The coach is in Northeast Missouri about 5 hours away which really complicates the logistics
of getting there and back with any time leftover to work.

We changed all the filters and topped off all the fluids. the electric air pump wouldn't work so we hotwired that and it works fine, just not getting any juice from the coach. The engine bay bulkhead insulation came lose and flopped over the alternator, we removed that. As tf175 stated both the air pump and the alternator are gear driven off the back of the engine.

We were able to build pressure with the engine running and the electric pump on and an additional pancake compressor running. but there seems to be quite a bit of air gushing out by the drivers side front wheel.

The coach has sunk into the ground about 6 inches so it won't move, possibly the brakes are also stuck from sitting. in anycase we tried to pull it out so that we could more easily in get back behind the front wheel but to no avail, the coach wouldn't move.

The trans seems to hook up and if I'm slow and gentle I can rock it back and forth a bit but it doesn't really move out of it's holes. We also tried pullling with my pickup but no joy with that either.

Also doesn't apear to be making full power, there's no psi at the pyrometer gauge and I don't hear anything spooling up under throttle. I might have to take a look at the turbo?

We'll make another run at it tomorrow. The plan is to get it out of it's holes, jacked up and cribed up, remove the front wheel and get the air leak fixed. I'm hoping it's just a line and not a bad bag but I was able to verify that the bag hardware is in good shape and not all rustted up so if the bag does need replacing hopfully that won't turn into a nightmare.

Thank you all for you're input, I'm leaning a lot here.

TerryW 86 8V92
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#12

Has anyone had an issue with low power on the 8v92? Possibly a weak fuel supply or a compromissed turbo???

TerryW 86 8V92
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#13

Dear Terry, We had a almost NO Power event with out 8V92. Changing fuel filters didn't help. Changed the big (on ours) air filter and problem solved!

Good luck!

deg
#277
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#14

I have seen a lot of people get stuck (I am not one of them) and instead of using a dead pull from a pickup, the kinetic energy ropes work excellent especially if you have a smaller pull vehicle than the vehicle to be recovered

I see them in the sand dunes.

Of course I have one, but that is why I have never had to use it! They are pricey for the size, I believe I have 1-1/2".

Be careful where you hook it up if you do go that route. I ended up making a bracket with an eye that attaches to the frame as well as a front support so that I would not damage the generator cooling air plenum either.

Coach 500 1998
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#15

Is this by chance the coach in Quincy, IL. 40ft, single rear axle?

Johnny
Former   1987 Newell series 60
Former 1986 Newell -92-
Wichita,Ks
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#16

(09-20-2024, 10:58 AM)Johnnyboy Wrote:  Is this by chance the coach in Quincy, IL. 40ft, single rear axle?

Yes, sir, quite the project

TerryW 86 8V92
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#17

Air leak near front wheel mentioned , the valves for front air bags are behind the headlights . Other air lines in there as well . The electric compressor is in the compartment forward of the front wheel , another possibility of leak in that area .
Chris

1986 #89
VIN 007
Detroit 8V92 TA 475 HP
Allison four speed 
Chris and Sharon Hand
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#18

Update:
We got the coach out of the holes and off the property. But we still have a heavy list to the passenger side and almost no power.
I put 150 gallons of fresh diesel in the main tank and tried it with no air filter at all but still no power, I can barely roll along at 20mph at full throttle.
I suspect it's a fuel issue or air throttle not getting a full stroke.

TerryW 86 8V92
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#19

If you have an air block, you should see black unburned fuel (black smoke) at the exhaust. Will it rev up in neutral? Is this a DDEC controlled engine or all mechanical injection? You may want to place a piece of clean hose in a five gallon bucket and connect that to your fuel pump and see if that makes a difference. If it powers up then, you have a blockage or air leak in your fuel supply hose.

Let us know.

deg
#277
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#20

(09-21-2024, 06:37 PM)dannymarilyn Wrote:  If you have an air block, you should see black unburned fuel (black smoke) at the exhaust.  Will it rev up in neutral?  Is this a DDEC controlled engine or all mechanical injection?  You may want to place a piece of clean hose in a five gallon bucket and connect that to your fuel pump and see if that makes a difference.  If it powers up then, you have a blockage or air leak in your fuel supply hose.

Let us know.

deg
#277

It does Rev up in neutral but it does so kinda lazily.
We gave up for the night.
In the morning I'll check that the throttle is going wfo and if that checks out I'm pretty sure it's got to be low fuel flow/pressure. 
I'll see if I can rig up a tank and maybe a pump and see what that does for power. 
I still have to find the air leak and now the problem with the lean to the passenger side.
It should be a whole lot easier now that I can get a jack and jackstand under her.

TerryW 86 8V92
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