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Topic: Engine torque (Read 925 times) previous topic - next topic

Engine torque

Does engine torque cause the right side of our coaches to raise while driving cause it's a diesel pusher? It used to twist the heck out of my GTO raising the left front. Asking this question because nitehawk is going to spend money cause his leaf spring coach at rest leans to the right. May have been designed that way.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

Re: Engine torque

Reply #1 –
I don't think anybody would launch a motorhome full throttle from a stand still, we have to buy the parts it abuses. Once under way there would be no twisting.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Engine torque

Reply #2 –
Phred, our coach sat in storage for over 10 years, with the two 8A/8D batteries on the right side under the steps. About 180# each. I noticed the coach had a bit of "lean" a couple years after we bought it. Then the lean started to get a little bit more visible every couple years.
Last November we hit a very, very nasty drainage half/culvert doing about 45 MPH. No warning it was even there. Just down a steep slope, then a poorly made transition from blacktop to concrete "trough" in the road, then back up a slope to level road. We hit so hard I thought the front end of the coach was torn off and we had lost our towed.
Handling seemed to slowly get progressively worse and was a nightmare coming home after we met you in Wichita. Finally decided, after discussing problem with the folks here on the Foforum, to get new springs and shocks. Problem was getting worse and becoming dangerous, and my responsibility is to keep my DW safe. When I looked over and saw her holding a map over her face because she was so scared I knew it was time to either fix the problem, sell the coach, or get rid of the DW. And I sure wasn't going to do the last two!!
Nitehawk,  Demolition Lady, & our NEW master, Zippy the speeding BB cat.
1989 Grand Villa 36' ORED
Oshkosh chassis, 8.2 DD V8
2006 Saturn Vue AWD

Re: Engine torque

Reply #3 –
Quote from: Old phart phred –
Does engine torque cause the right side of our coaches to raise while driving cause it's a diesel pusher?
Foretravel coaches do not twist from the engine torque thanks to the superior semi monocoque frame design.  However, amazed bystanders have often reported seeing daylight under the front wheels of my coach when it comes off the line at full throttle.  :o

THE MIGHTY CUMMINS RULES!
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Engine torque

Reply #4 –
I looked down and saw 2" of daylight under the front wheels of our 8.2 DD Turbo-charged 200 HP V8. You know, the underpowered V8.
Impressive until I realized the front leveling jacks had fully extended!!
I swear it is true! Re leveled and tires were back on the ground. (I explained in another post how this dumbass--no names here, please--had put a box under the couch that leaned on the HWH level sensing unit)
Nitehawk,  Demolition Lady, & our NEW master, Zippy the speeding BB cat.
1989 Grand Villa 36' ORED
Oshkosh chassis, 8.2 DD V8
2006 Saturn Vue AWD

Re: Engine torque

Reply #5 –
And I am sure your DW had a couple options of her own........
Justin & Cathy Byrd
1995 U280 "Old Faithful"
36' Build #4673
C8.3 Cummins
Allison MD3060R 6 speed - retarder
Powertech 10KW  4cyl Kubota

Re: Engine torque

Reply #6 –
Quote from: Chuck & Jeannie –
  However, amazed bystanders have often reported seeing daylight under the front wheels of my coach when it comes off the line at full throttle.  :o THE MIGHTY CUMMINS RULES!

Get your pink slip out, daddy. My CAT will eat you for breakfast!  ^.^d
1993 U-240 "La Villa Grande"..CAT 3116 w/ Pacbrake PRXB...Allison 3060 6-speed..
Previous: 1983 Airstream 310 turbo diesel, 1979 Airstream 280 turbo diesel
                                      Build # 4297
                                      PNW natives
                      Home base:  'Cactus Hug' (Ajo, Arizona)
                        DW Judy & Chet the wonder dog
                        Full-Timers 'Sailing the asphalt sea'

Re: Engine torque

Reply #7 –
OK....
Where are all the Ole' DD fans?
I'm sure they will want some of this too.
Justin & Cathy Byrd
1995 U280 "Old Faithful"
36' Build #4673
C8.3 Cummins
Allison MD3060R 6 speed - retarder
Powertech 10KW  4cyl Kubota

Re: Engine torque

Reply #8 –
Who has that 500 HP 36' now?
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Engine torque

Reply #9 –
Quote from: Chuck & Jeannie –
Foretravel coaches do not twist from the engine torque thanks to the superior semi monocoque frame design.  However, amazed bystanders have often reported seeing daylight under the front wheels of my coach when it comes off the line at full throttle.  :o

THE MIGHTY CUMMINS RULES!
Chuck, sounds like the PO installed a very large auxiliary black water tank well aft of the rear axle and it's about to overflow. Should be easy to find, just follow the hose from the macerating pump rearward to the tank!
Oh yeah and get rid of motion of the ocean water bed.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

Re: Engine torque

Reply #10 –
0 - 60 in 19.88 seconds (3rd run) I can't tell if that's horse power or torque. The front end never left the ground, wheelie bar.
Eric, Mary and Carl the jack russel terrorist
1997 U320, #5143, w/450 hp, 6.9 on the richter scale
Sammie the toad
Live Free or Die

Re: Engine torque

Reply #11 –
Hope I'm not giving Nitehawks secret away but under his coach near the back frame are 2 big maybe 4 to 6 inch castors,what they
are actually for is beyond me,maybe we can get a picture.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Engine torque

Reply #12 –
Did I mention the modifications Brett made to the 3116 ? Bring it on, slow pokes!  ^.^d
1993 U-240 "La Villa Grande"..CAT 3116 w/ Pacbrake PRXB...Allison 3060 6-speed..
Previous: 1983 Airstream 310 turbo diesel, 1979 Airstream 280 turbo diesel
                                      Build # 4297
                                      PNW natives
                      Home base:  'Cactus Hug' (Ajo, Arizona)
                        DW Judy & Chet the wonder dog
                        Full-Timers 'Sailing the asphalt sea'

Re: Engine torque

Reply #13 –
No pictures right now, Dave. We got 19" of snow over the last two days. A new record for the area. Now have to contend with blowing & drifting snow. Am going out & putting the snowblower on the tractor.
I think the big wheel casters were for the first owner who was an optimist. Thought 200 HP in a diesel was overkill? Maybe a psych tool for other class A owners?
Caflashbob maybe would know the thinking behind the casters. His store sold this "overpowered" wheelie caster equipped coach. :))
Nitehawk,  Demolition Lady, & our NEW master, Zippy the speeding BB cat.
1989 Grand Villa 36' ORED
Oshkosh chassis, 8.2 DD V8
2006 Saturn Vue AWD

Re: Engine torque

Reply #14 –
They were placed there to keep the rear end from dragging when going through large dips like going into a gas station.
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins
 

Re: Engine torque

Reply #15 –
Of course all this horse power is only as good as your coach is light.   
Robert and Susan
 1995 36' 280 WTBI 8.3 3060r
 1200 watts on the roof, 720 Ah of lithium's
 Build # 4637. Motorcade # 17599
        FMCA  # 451505
        18  Wrangler JLUR