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Transmission Discussion of preventative/corrective maintenance and other technical issues regarding your coach's transmission.

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  #61  
Old 11-16-2008
gcyeaw's Avatar
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Gardner
 
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John,
That is a defifite consideration, and one that would be easier that doing the bags. Do you know what the part number for the valve was? I am having truble crossrefrencing the numbers in the blue-books.

I have Ridewell #S-2736-b for the valve.
BB p/n 0871376
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86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
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  #62  
Old 11-16-2008
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Congratulations Gardner,

Good news your Bird is running, How did it shift?? Have the shift points changed?? Do you have lots more power??
The tach seems minor, the height I feel is repair related.
Looking forward to Air Bag replacement adventures.
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  #63  
Old 11-16-2008
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John Wyatt – Administrator/Moderator
 
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Gardner,

I replaced the front height control valve on my 84 ½ PT-36 with a Haldex Neway #90054007. I’ll have to look in my prints and see if the B.B. number and Ridewell was the same as yours.
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Titusville, Florida
1991 40' WLWB-WTB
Body Number F095567
My Location: http://www.bbirdmaps.com/user1.cfm?user=4

1991 40' WB ...From 2008 - Present
1984 ½ PT-36 .From 2000 - 2008
1973 FC-31 .....From 1991 - 2001
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  #64  
Old 11-16-2008
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Gardner,

The B.B. number (0871376) in my prints matches the number you have so it looks like the Haldex Neway #90054007 would work for you. I think the box also included all the fitting to install it.
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John Wyatt
Titusville, Florida
1991 40' WLWB-WTB
Body Number F095567
My Location: http://www.bbirdmaps.com/user1.cfm?user=4

1991 40' WB ...From 2008 - Present
1984 ½ PT-36 .From 2000 - 2008
1973 FC-31 .....From 1991 - 2001
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  #65  
Old 11-16-2008
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Gardner
 
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Thanks John, There seem to be a couple of P/Ns, one with a dump valve and one without. I would replace the dump valve as well, why go to all the trouble and have to do it again.

Bill,
Since the tachometer stopped working after the repair, the shiftpoints are a mistery. They do seem to be pretty much the same based on MPH.
The tach has a sender that reads off the flywheel ring gear. It is either out of adjustment or it was damaged when they replaced the rear main seal on the engine. I am looking for adjustment procedures but not having much luck. If I can take the access plate off the bottom I may be able to see how close the transducer is to the gear. I don't know if there is a way to test the output other than the tach itself.
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86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey
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  #66  
Old 11-16-2008
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Gardner,

I copied this from a post I made on a Thread back in April. So for safety I’ll repeat it here.

Replacing the valve wasn't hard BUT keep in mind that this valve raises and LOWERS the coach. Working on this valve puts you at SERIOUS risk of being crushed if the coach is not PROPERLY supported (leveling jacks are NOT proper support). A wrong move can let the coach drop all the way to it's lowest position! After the valve is replaced, the linkage has to be adjusted to set the ride height to the proper specification (you will need to find out how to measure the height from your documentation or maybe from BB). The coach needs to be on a level surface and you have to be under the coach while making adjustments to the linkage which again puts you at SERIOUS risk of being crushed if the coach is not PROPERLY supported. When my valve went bad my coach was parked inside the storage building so I had access to my support blocks and I had a good level surface to work on. It was still a little scary being under there messing with the leveling valve linkage.
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John Wyatt
Titusville, Florida
1991 40' WLWB-WTB
Body Number F095567
My Location: http://www.bbirdmaps.com/user1.cfm?user=4

1991 40' WB ...From 2008 - Present
1984 ½ PT-36 .From 2000 - 2008
1973 FC-31 .....From 1991 - 2001
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  #67  
Old 11-16-2008
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Gardner, not sure of your tach but many speedos and tachs need an oscillator to check and / or calibrate.

John, good advise and we all need a reminder of the potential danger
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  #68  
Old 11-16-2008
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John,
I am the words biggest chicken when it comes to crawling under the bus. I have two 22,000 pound rated pin type jackstands, the levelers and a bottle jack. So the levelers are nice to raise it up, but I support the heck out of it and let it down on the stands to insure stability. Even then I don't like it under the bus.
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86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey
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  #69  
Old 11-16-2008
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Bill,
I was thinking about how to check the output of the transducer. I have a frequency position on my latest voltmeter, I may give that a try. If there is no output it is the transducer (probably).
Since they took the flywheel off, I am betting that is where the problem is.
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Gardner Yeaw
86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey
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  #70  
Old 11-16-2008
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Gardner,

I found a couple of excellent Posts by Flagman John on Height control valves.

http://www.wanderlodgeownersgroup.co...ghlight=height

http://www.wanderlodgeownersgroup.co...ghlight=height
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John Wyatt
Titusville, Florida
1991 40' WLWB-WTB
Body Number F095567
My Location: http://www.bbirdmaps.com/user1.cfm?user=4

1991 40' WB ...From 2008 - Present
1984 ½ PT-36 .From 2000 - 2008
1973 FC-31 .....From 1991 - 2001
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