09-19-2024, 05:05 AM
Welcome Terry !
I will go on the assumption that your '86 is similar to mine , although we know that no two Newells are the same .
My set up :
Alternator and air compressor are direct drive off the engine . Both at rear of engine , over bell housing .
The alternator is at the top, centrally mounted . Drives off blower shaft.
Compressor on driver's side, accessory drive .
Both accessible from driver's side engine compartment door.
I have a propane tank , driver's side . Third door to rear of left front wheel , inboard of two fuel/water separators .
My coach has air throttle , not much will happen without air . With no air the rear brakes are locked as well .
You may have a major air leak , possibly at the air dryer . My coach came with a CR Roadmaster dryer , mounted on forward bulkhead , driver's side
engine compartment . Round , finned vertical job . Air goes to dryer from compressor , dryer purges at the bottom . Unless the compressor just stops
building air , there may be a leak . You mentioned that air starts to build , there can also be a problem with the " unloader" in the compressor or the governor . The governor is easily accessed , beside the bottom of the air dryer .
If you haven't already , check your alternator output at the alternator itself . Mine was originally a Leece Neville 85 amp unit . I went over a few hurdles , I can at least tell you some things to avoid .
I'm sending a PM .
Chris
I will go on the assumption that your '86 is similar to mine , although we know that no two Newells are the same .
My set up :
Alternator and air compressor are direct drive off the engine . Both at rear of engine , over bell housing .
The alternator is at the top, centrally mounted . Drives off blower shaft.
Compressor on driver's side, accessory drive .
Both accessible from driver's side engine compartment door.
I have a propane tank , driver's side . Third door to rear of left front wheel , inboard of two fuel/water separators .
My coach has air throttle , not much will happen without air . With no air the rear brakes are locked as well .
You may have a major air leak , possibly at the air dryer . My coach came with a CR Roadmaster dryer , mounted on forward bulkhead , driver's side
engine compartment . Round , finned vertical job . Air goes to dryer from compressor , dryer purges at the bottom . Unless the compressor just stops
building air , there may be a leak . You mentioned that air starts to build , there can also be a problem with the " unloader" in the compressor or the governor . The governor is easily accessed , beside the bottom of the air dryer .
If you haven't already , check your alternator output at the alternator itself . Mine was originally a Leece Neville 85 amp unit . I went over a few hurdles , I can at least tell you some things to avoid .
I'm sending a PM .
Chris
1986 #89
VIN 007
Detroit 8V92 TA 475 HP
Allison four speed
Chris and Sharon Hand