Sluggish 8V92

[Don Bradner]

A prior owner replaced the DDECII in mine in February, 2003, so there must have
been a problem, I just don't know what. I've heard that person is still a Bird
owner, but he's never been on any forum so I don't know how to ask.

Don Bradner
90 PT40 "Blue Thunder" For Sale: http://www.arcatapet.net/rvforsale
My location: http://www.bbirdmaps.com/user2.cfm?user=1

On 11/29/2012 at 8:35 PM Jerry wrote:

>Air and fuel filters have been ruled out....he pretty much has it
>narrowed down to a computer issue....the tech says he's got a used "DDEC
>II" that he is going to install and see if that rectifies the problem.
>
>Has there been many issues with the "DDEC II"? Just wondering if this
>tech is on the right track or is he just playing guessing games with me!!!
>
>He should be updating me in a few days. Jerry
>
>--- In WanderlodgeForum@yahoogroups.com, Ron Thompson wrote:
>>
>> Are you sure you don't have a reduction of your air supply. I have not
>had a problem with my Series 60 diesel but I have had that problem with my
>Kubota generator. The air supply filter is located low on the engine and
>on a trip to Alaska on the Alcan highway there was a lot of really dusty
>highway construction going on and my generator started lugging down and it
>turned out that the filter had sucked so much dust that it clogged up and
>only a little air was getting through it. Replaced the filter and the
>engine ran like a top after that.
>>
>>
>> Ronald Thompson
>>
>> TEXAS
>>
>> 1995 Wanderlodge 42'
>>
>> --- On Wed, 11/28/12, Jerry wrote:
>>
>> From: Jerry
>> Subject: [WanderlodgeForum] Re: Sluggish 8V92
>> To: WanderlodgeForum@yahoogroups.com
>> Date: Wednesday, November 28, 2012, 12:16 PM
>>
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>> Well...it appears the tech jumped the gun on the "bad injector"
>being the problem. He installed the new injector and it still does not
>fire on that cylinder. He actually is saying now that when under a load,
>it appears to be missing on more then just the one cylinder.
>>
>>
>>
>> Says he has to dig deeper to find out what's going on....this was a
>couple of days ago, haven't heard anything new since then.
>>
>>
>>
>> I'm beginning to think it may be the "DDEC II"...or something else along
>the electronic end. Jerry
>>
>>
>>
>> --- In WanderlodgeForum@yahoogroups.com, "Oene Pomper" wrote:
>>
>> >
>>
>> > What did you find out?
>>
>> >
>>
>> > >>> "Don Bradner" 11/9/2012 3:17 PM >>>
>>
>> > 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
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>> >
>>
>> > Upshifts occur at 2100rpm and drop to 1670rpm
>>
>> >
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>> > 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
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>> > >it shifts, and watch the tach for small drops in RPM's
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>> > >________________________________
>>
>> > > From: Jerry
>>
>> > >To: WanderlodgeForum@yahoogroups.com
>>
>> > >Sent: Thursday, November 8, 2012 9:14 PM
>>
>> > >Subject: [WanderlodgeForum] Re: Sluggish 8V92
>>
>> > >
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>> > >
>>
>> > >Â
>>
>> > >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
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>> > >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
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>> > >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
>>
>> > >>
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>> > ------------------------------------
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>> >
>>
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