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Bumper off #846 today, guess I'm diving in...
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LCAC_Man
Posted 2018-11-08 10:52 AM (#6014 - in reply to #6012)
Subject: Re: Bumper off #846 today, guess I'm diving in...


Extreme Veteran

500252525
Location: Oceanside, CA
"have to cruise around 70 mph on 6th gear in order to keep the rpms were they need to be, below that we must keep it on 5th gear"
This is pretty close to what I see...I stay in manual tap shift mode all the time, I only select 6th when I'm in the flats/down slopes and am running over 65(which is rare, I'm in 5th way more than 6th).
This should put your gear ratio concerns to bed...stay under 70mph and you'll be in the same boat as we are for overdrive/total drive ratio...the Allison .71 5th gear and the 47re .69 4th are damn near a match..
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byegorge
Posted 2018-11-08 10:56 AM (#6015 - in reply to #5996)
Subject: Re: Bumper off #846 today, guess I'm diving in...


Veteran

10025
Location: Olympia, Washington
I like the Oldsmobile analogy Lenny the trick is to get those suggestions in early ahead of time beat the lag.
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ricogomez
Posted 2018-11-17 4:57 PM (#6049 - in reply to #5977)
Subject: RE: Bumper off #846 today, guess I'm diving in...


Veteran

100
Location: Houston, Texas
Our FMC has great steering control, we only had to changed the steering shaft “Rag Joint” and adjusted the steering box and is been great.

Last time we went to Carthage MO, I asked Frank about the two front tires wearing
uneven and after he inspected them, he suggested to adjust only the center link
because both tires were toed in a bit too much, after we came back from Chama,
we didn’t notice any more uneven wear so we think we got them dial in where they
need to be.

We are hoping we can install the rear Air Bags in the very near future,
I’m going to look into cutting the front fresh water tank in 1/2 (maybe) there’s
place in the Houston Texas área that can do that type of work, if successful,
We would have a place to add weight at the front, unless the rear Airbags bring
the front end down an inch or two ????

The front end feels light now and I know it could use some counterweight,
maybe I will wait and see how far back I can install the air bags to see if it
helps ????


You can pm me if you think I can be of any help or ?????


Rico & Carmen
397
12 V Cummins & 6 speed Ally
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BigRabbitMan
Posted 2018-11-17 5:40 PM (#6050 - in reply to #5977)
Subject: Re: Bumper off #846 today, guess I'm diving in...



Elite Veteran

1000
Location: Cottage Grove, OR
Do one thing at a time. Do rear airbags first and that will probably resolve the issues and then you won’t have to do any more.
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LCAC_Man
Posted 2018-11-17 6:01 PM (#6051 - in reply to #6050)
Subject: Re: Bumper off #846 today, guess I'm diving in...


Extreme Veteran

500252525
Location: Oceanside, CA
Rear air bags for sure. Move your spare tire up front...it's a noticeable difference. Move your starting/chassis batteries forward. Get the generator out of the engine bay.
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andy1canada
Posted 2018-11-17 6:30 PM (#6052 - in reply to #6049)
Subject: RE: Bumper off #846 today, guess I'm diving in...


Extreme Veteran

10010010025
Location: Victoria, BC. Canada
Thanks Rico. I'll try not to be too much of a pest. Frank could well be the foremost source for Cummins swap feedback and I'll likely be sending him a question or two as I go.

Lenny: I would argue that it would be good to keep a lighter version of genny behind the rear axle to provide at least some counterbalance for the offset of this much heavier engine. Now, if a guy was going to revamp the engine bed to move the engine over onto the center-line of the coach - like a transit - then, yes, I'd be totally on board with that idea.

Looking for a usable weigh scale to weigh some this heavy stuff - like the rad and bumper etc - so I can better estimate what's worth doing (to save some weight) and what isn't.

Cheers,
Terry
#846
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BigRabbitMan
Posted 2018-11-17 6:35 PM (#6053 - in reply to #5977)
Subject: Re: Bumper off #846 today, guess I'm diving in...



Elite Veteran

1000
Location: Cottage Grove, OR
Adding the rear air bags will reduce the need be so aggressive with the weight issue as the balance point shifts rearward.
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LCAC_Man
Posted 2018-11-17 6:41 PM (#6054 - in reply to #5977)
Subject: Re: Bumper off #846 today, guess I'm diving in...


Extreme Veteran

500252525
Location: Oceanside, CA
Well...my actual weights show that the left side is still 200lbs heavier than the right, fuel tank, bathroom and kitchen are heavy..
Gross Weight: 15200lbs
Left Side: 7700lbs
Right Side: 7500lbs

Front Axle: 5060lbs
F/Left: 2580lbs
F/Right: 2480lbs

Rear Axle: 10140lbs
R/Left: 5120lbs
R/Right: 5020lbs

Fuel Tank Full
Water Tank maybe 5 gallons
Gray and Black Empty
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andy1canada
Posted 2018-11-17 6:42 PM (#6055 - in reply to #5977)
Subject: Re: Bumper off #846 today, guess I'm diving in...


Extreme Veteran

10010010025
Location: Victoria, BC. Canada
Maybe somebody can point me at these air-bags (brand/model # etc) so I can start learning about them. I'm assuming they provide a similar geometry as does the weight-distribution hitch for towing. Am I on the right track here? I gleaned a little from the pics Len posted of his trailing arm mod he welded up for his coach, but that's too over the top for me. My speed is more along the lines of Timbren rubber-spring jobbies :-0

Hey Stephen, I got more stars than you and mine are better colors! Ha-ha... yours is red; I know what my Yankee bro's think of red stars! ;-0

Terry
#846
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hemi354az
Posted 2018-11-17 6:44 PM (#6056 - in reply to #6052)
Subject: Re: Bumper off #846 today, guess I'm diving in...


Extreme Veteran

1001001002525
Location: Scottsdale, Aridzona
1. Turn the body around on the chassis or put the engine in front.
2. Get rid of the Generator, just run the engine all the time like all the real Diesel Trucks do.
3. Get an Air Cooled Deutz Engine and get rid of the radiator.
4. Get an Air Bag Suspension Controller from those 70s Cadillacs . . . they worked real good . . . sometimes.
5, Sell it and call Uber.
It still will NOT FLY . . . the Wings are TOO SHORT !

Got a bathroom scale ?
Keep at it. Lou #120

Edited by hemi354az 2018-11-17 6:46 PM
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andy1canada
Posted 2018-11-17 7:00 PM (#6057 - in reply to #5977)
Subject: Re: Bumper off #846 today, guess I'm diving in...


Extreme Veteran

10010010025
Location: Victoria, BC. Canada
All good advice Lou.

I tried the bathroom scale method while holding - clean & jerk style - the 135 lb bumper; scale broke, wife's pissed!

Terry
#846
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hemi354az
Posted 2018-11-17 7:56 PM (#6058 - in reply to #6057)
Subject: Re: Bumper off #846 today, guess I'm diving in...


Extreme Veteran

1001001002525
Location: Scottsdale, Aridzona
Carpenters have to make the math so complicated . . .
1. Weigh yourself.
2. Weigh yourself holding item.
3. Subtract Step 1 weight from Step 2 weight equals Item Weight.
Everyone else.
1. Put Item on scale.
2. Read Number that equals Item Weight.

Ain't Science/Math wunnerful ?
Lou #120.
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