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Sluggish 8V92
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Sluggish 8V92
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Sluggish 8V92
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11-07-2012, 07:43
Post: #1
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Sluggish 8V92
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 |
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11-07-2012, 07:46
Post: #2
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Sluggish 8V92
Were primary and secondary fuel filters both replaced ? I'd take both of them out and see if they are dirty.
Thanks, Markus -----Original Message----- From: Jerry Sent: 7 Nov 2012 19:43:49 GMT To: WanderlodgeForum@yahoogroups.com Subject: [WanderlodgeForum] Sluggish 8V92 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 |
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11-07-2012, 07:55
Post: #3
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Sluggish 8V92
Without feeling it, it is hard to say. The 8V92 is an engine that has to rev
high before you get any torque going, so it is always slow off the line. Just as described I would say that mine is the same, and is normal. That includes turbo values. The only thing that is a question mark is your use of "Lately" which implies that it didn't used to be that way. Don Bradner 90 PT40 "Blue Thunder" My location: http://www.bbirdmaps.com/user2.cfm?user=1 On 11/7/2012 at 7:43 PM 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 > > > > > >------------------------------------ > >Yahoo! Groups Links > > > |
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11-07-2012, 08:05
Post: #4
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Sluggish 8V92
Hi Jerry,
You mentioned the fuel filters have been recently serviced. Is that about the time or shortly there after that your rough idle started? If it were me I would start simply and economically by changing out the fuel filters again. Does your Racor gauge show alot of restriction? Try that and see how you make out. At 200K you are probably due for a valve adjustment and other tune up items. Try the filters first. You may have one that is allowing a very slight amount of air into the fuel system or an o ring not quite seated on your Racor. Cheers Gary --- In WanderlodgeForum@yahoogroups.com, "Jerry" > > 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 > |
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11-07-2012, 12:47
Post: #5
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Sluggish 8V92
Jerry What temperature is cold? Mine does Steve Quandt 1993 PT-40 From: 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 |
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11-07-2012, 12:50
Post: #6
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Sluggish 8V92
Steve- are you in Marble Falls? I looked at the river cg and didn't see anything but white trailers Ernie Ekberg 88 PT40 Wanderlodge Weatherford, Texas 817-475-3991 From: Steve Quandt To: WanderlodgeForum@yahoogroups.com Sent: Wednesday, November 7, 2012 6:47 PM Subject: RE: [WanderlodgeForum] Sluggish 8V92 Jerry What temperature is cold? Mine does not like temps much under 50 to start smoothly. I would also start with the filters then to the valve adjustment. Had a valve adjustment done on mine two years ago, lots of difference. Steve Quandt 1993 PT-40 Iron Mountain, MI From: WanderlodgeForum@yahoogroups.com [mailto: WanderlodgeForum@yahoogroups.com ] On Behalf Of Jerry Sent: Wednesday, November 07, 2012 1:44 PM To: WanderlodgeForum@yahoogroups.com Subject: [WanderlodgeForum] Sluggish 8V92 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 |
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11-07-2012, 23:00
Post: #7
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Sluggish 8V92
I would change out my RACOR filter first, Then if it is still sluggish check your air filter. Simple cheap things first
Rob, Sue and Joey Robinson |
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11-08-2012, 00:57
Post: #8
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Sluggish 8V92
Ernie We are at Sunset Point. Steve From: Steve- are Ernie Ekberg 88 PT40 817-475-3991 From: Steve Quandt < Jerry What temperature is Steve Quandt 1993 PT-40 From: I have a
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11-08-2012, 03:19
Post: #9
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Sluggish 8V92
Thanks for all the quick replies.
Have checked the filters and exhaust, they look okay. (Changed the final fuel filter, cut the old one apart.) Recently changed the fuel/water separator, gauge still shows it to be good. Plan on checking the fuel pressure today. If I don't find anything obvious, I will have the valves and injectors looked at. I know these things don't jump off the line, but this thing is really getting bad. There is just so little throttle response when accelerating from a dead stop. In response to how cold when doing cold starts....doesn't seem to matter if its summer or winter.....here in Georgia, we're talking 60's down to 30's. Thanks again, and if and when we find out the problem, I'll report back. --- In WanderlodgeForum@yahoogroups.com, "Jerry" > > 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 > |
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11-08-2012, 05:46
Post: #10
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Sluggish 8V92
hope you have a ggod stay. I was driving thru last week on my way to a quick look see on a job in San A Ernie Ekberg 88 PT40 Wanderlodge Weatherford, Texas 817-475-3991 From: Steve Quandt To: WanderlodgeForum@yahoogroups.com Sent: Thursday, November 8, 2012 6:57 AM Subject: RE: [WanderlodgeForum] Sluggish 8V92 Ernie We are at Sunset Point. Steve From: WanderlodgeForum@yahoogroups.com [mailto: WanderlodgeForum@yahoogroups.com ] On Behalf Of Ernie Ekberg Sent: Wednesday, November 07, 2012 6:51 PM To: WanderlodgeForum@yahoogroups.com Subject: Re: [WanderlodgeForum] Sluggish 8V92 Steve- are you in Marble Falls ? I looked at the river cg and didn't see anything but white trailers Ernie Ekberg 88 PT40 Wanderlodge Weatherford, Texas 817-475-3991 From: Steve Quandt < smquandt@... > To: WanderlodgeForum@yahoogroups.com Sent: Wednesday, November 7, 2012 6:47 PM Subject: RE: [WanderlodgeForum] Sluggish 8V92 Jerry What temperature is cold? Mine does not like temps much under 50 to start smoothly. I would also start with the filters then to the valve adjustment. Had a valve adjustment done on mine two years ago, lots of difference. Steve Quandt 1993 PT-40 Iron Mountain, MI From: WanderlodgeForum@yahoogroups.com [mailto: WanderlodgeForum@yahoogroups.com ] On Behalf Of Jerry Sent: Wednesday, November 07, 2012 1:44 PM To: WanderlodgeForum@yahoogroups.com Subject: [WanderlodgeForum] Sluggish 8V92 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 |
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