Sluggish 8V92

[mbulriss]

Interesting post Don. I remembered it as I fired mine up this weekend to go
fill up with propane. Normally, I don't pay much attention to where the shift
points are, as long as they do shift, and I usually light foot it off the start
until I get rolling. Anyway, as I turned a corner to get on IH-10 for a bit, I
felt the 2nd gear lock up shift and remembering your post, I then floored it to
merge in with traffic. My 3/4/5 shift results were very crisp and almost
identical to yours in mpg (35/45/60) but my max rpms and rpm drop off point were
both higher than yours. Not exactly sure what that implies, but it was
interesting to make the comparison.

FWIW,

Mike Bulriss
1991 WB40 "Texas Minivan"
San Antonio, TX



--- In WanderlodgeForum@yahoogroups.com, "Don Bradner" wrote:
>
> The HT755 is a 5-speed, but has 6 apparent/effective gears in terms of rpm
changing. When flooring mine from a stop, the gear shifts occur approximately
at:
>
> 0mph 1st gear
> 18mph 2nd gear unlocked
> 27mph 2nd gear locked
> 36mph 3rd gear
> 45mph 4th gear
> 60mph 5th gear
>
> Upshifts occur at 2100rpm and drop to 1670rpm
>
> Don Bradner
> 90 PT40 "Blue Thunder"
> My location: http://www.bbirdmaps.com/user2.cfm?user=1
>
> On 11/8/2012 at 9:31 PM Julian Cane wrote:
>
> >How about starting at zero mph and go slowly to 50 mph counting how times
> >it shifts, and watch the tach for small drops in RPM's
> >
> >
> >
> >
> >
> >________________________________
> > From: Jerry
> >To: WanderlodgeForum@yahoogroups.com
> >Sent: Thursday, November 8, 2012 9:14 PM
> >Subject: [WanderlodgeForum] Re: Sluggish 8V92
> >
> >
> > 
> >Scott,
> >
> >That is interesting that you mention the transmission....it is something I
> >have suspicioned because that is how it seems when starting from a stop.
> >
> >Is there any way to verify this? Would pushing "1" guarantee that it is
> >indeed in first gear? This has the allison 5 speed, not sure on the
> >model, I think its something like a 745 or 755.
> >
> >Paul,
> >
> >We have an appointment to have it checked out Monday. Finally found a
> >tech in this area willing to work/check a 8V92.
> >
> >I will let you all know what they find.
> >
> >Thanks, Jerry
> >
> >--- In WanderlodgeForum@yahoogroups.com, "Jerry" wrote:
> >>
> >> I have a "1991 Bluebird Wanderlodge WB40" with a silver "8V92".
> >>
> >> Lately it has become painfully slow at accelerating from a dead stop.
> >It is getting to the point of being unsafe to attempt to merge into
> >traffic.
> >>
> >> Once you get it rolling down the highway, it isn't so bad...I have no
> >problems maintaining 70mph.
> >>
> >> Turbo boost will show a bit over 20 for a max, but when accelerating
> >from a stop, boost is less then 10, and the rpm's just don't want to rev
> >up.
> >>
> >> When it is first started, when cold, it does not sound as smooth as I
> >thought it used to.....almost like it has a slight mis. Seems to smooth
> >out once it is warm.
> >>
> >> Bought it used with 160,000 miles, it now has a bit over 200,000 miles.
> >The fuel and air filters have been recently serviced, but I have no
> >knowledge of any past maintenance history.....so I don't know if there are
> >other issues that need to be looked at....ie: valve settings, fuel
> >injectors, etc.
> >>
> >> Has anyone else had this issue, or have any ideas at what I may need to
> >check to help resolve this problem?
> >>
> >> Thanks, Jerry
> >>
>