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Topic: Vacuum generator (Read 852 times) previous topic - next topic

Vacuum generator

Is the vacuum generator supposed to run all of the time, except when park brake is set. It has no solenoid valve that I can find. Is it somehow supposed to quit once a certain vacuum is attained. Not connected to my temperature control lever, but I can here the dampers opening and closing. Leaks a lot of compressed air.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

Re: Vacuum generator

Reply #1 –
There is a control that looks like a thermostat that is supposed to limit how much the vacuum generator passes air to make the vacuum. It may be located out front under the 2 lift up doors.
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: Vacuum generator

Reply #2 –
Thanks red tractor, there are two hoses to the vacuum resivouir ball, I assumed one would shut it down somehow, sprayed some lube in both, maybe a percussion adjustment tomorrow. Or maybe it has a bad diaphragm. Have no idea what is normal operation for this piece. Replaced cracked 27 year old hoses. Some where I've got an old hand powered mighty vac.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

Re: Vacuum generator

Reply #3 –
The vacuum generator will stop when there is vacuum in the can. If the check valve is bad it never stops.

obsolete vacuum generator
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Vacuum generator

Reply #4 –
Quote from: craneman –
The vacuum generator will stop when there is vacuum in the can. If the check valve is bad it never stops.

obsolete vacuum generator
Thank you craneman, if there is a check valve it must be integral to the tiny Ventura generator. Also read that post. $1.50 inline check valve from the fish aqaurium store may be the answer.
My brain needs rebooted every once in a while.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

Re: Vacuum generator

Reply #5 –
I bought one at O'reilly's
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Vacuum generator

Reply #6 –
If you have the Ford AC/heater control, make sure the slider stops at least a quarter inch before the left hand stop. I troubleshooted ours for an hour before I found the problem. Place an insert in the slot to limit the travel of the chrome slider. If the vacuum pump runs all the time or a lot of the time, it will fail.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)

Re: Vacuum generator

Reply #7 –
Note to self keep at least a half dozen 1/4" pipe plugs on board. May even be smaller either case I don't have any. I am NOT stranded on the side of the road.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake