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How do I adjust the rotor to the pump on a Master B 150.

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Before setting the gap make sure the motor does not have any motion in the shaft indicating a worn bearing. If so, the motor must be replaced.

The rotor is surrounded by a metal ring called the pump body, which has 2 screws that attaches it ti the motor. Loosen the screws. This will allow a slight up/down movement of the pump body. Install the rotor. Adjust the rotor so that on the top side of the rotor there is .003 to .005 clearance then tighten the screws.

Then set the pump pressure. Watch this video with instructions.

Posted on Oct 17, 2010


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Adjust reddy heater pump pressure it will not pump passed 2half psi i need it to go to 4half psi

To adjust the pump pressure on this type of heater, turn the threaded adjuster clockwise to increase the air pressure, but if the adjustment makes no difference, there maybe a loss of air pressure caused by a crack in the plastic filter end cover, the rubber seal at the end of the nozzle may be broken, gone hard, cracked or missing, there could be a crack in the burner head (where the nozzle screws in), leaking air supply pipe between the compressor and the burner head, the rotor and/or blades may be worn or damaged, or if contaminated with dirt,paint spray or oil, one or more blades may be stuck in the rotor If contaminated they will need to be replaced, but if doing so, remember to reset the clearance between the top of the rotor and the pump body, your manual will give you the correct clearance.

Jan 15, 2014 | Master Heaters Heating & Cooling

1 Answer

I have a Ford E-150 Fullsize van. Having a problem with front brakes. Replaced a couple of times within a year. Need a answer on what might be the problem. Also have a problem with the abs system. any...

Was kinda wondering what the ABS problem is. The Master cylinder should be pressure tested as a start. On some models the rod in the power brake booster is adjustable. If the Booster rod does not have some slack in it, your brakes will not be completely off. It is also possible that the Master cylinder is not returning to the Neutral position because the pistons inside the Master cylinder are hanging up.

When you pressure test a Master cylinder you will find the fluid pressure from each port in the Master cylinder. You will also see if there is zero pressure when the Brake pedal is not touched. So this clears the problem to the next testing area. The ABS unit. There are diagnostic plugs for the ABS which will describe a problem and it will be tested Electrically. The same problems about sticking pistons that can be in the Master cylinder, can also exist inside the ABS unit. You mechanic may want to pressure test each one of the ABS ports.

By this point you should have some idea how much pressure is going to the back and front brakes.
You will know if the back brakes are fully functional or not. The only thing left after this would be hanging Calipers that do not return to a neutral position. I am sure you know the feel of Warped Rotors. They can be a sign that the Pads are always dragging.

Front wheel bearings. Often overlooked for Brake wear, if the wheel bearings are too loose the Rotor will not run Perpendicular to the front spindle. The rotors can "canter" slightly and rub the pads.

Take a look at the NAPA rotors on their first line parts. Check the thickness of their cooling fins on their rotors and the amount of metal on the rotor surface Try to get Lifetime Warranty pads from whomever you use. These 2 things will save you money in the longrun.

I hope I have given you some new ideas to fixing your Van. Thanks for using Fixya.

Nov 26, 2010 | 2003 Ford E150

1 Answer

Brakes work on my f 150 but can easily be pushed

power brake booster is blown if the pedal goes to the floor and everything you stated was done correctly

Feb 28, 2010 | 2006 Ford F-150

1 Answer

Ive put a new rear rotor on my 03 kx250 and i

Yes, you need to bleed the system. Somehow air has gotten in.
First, fill the master cylinder to the full level with brake fluid. Locate the bleeder valve down on the caliper and get out a wrench that fits it. Then pump the pedal several times and hold it down as you open the bleeder valve. Do not let the pedal back up while the valve is open - or else air will be drawn back in. After a few seconds, close the valve and pump the pedal again.
Perform these steps until normal feel to the pedal is achieved. Make sure the master cylinder does not run low on brake fluid while you are doing the bleeding.

Jan 13, 2010 | 2003 kawasaki KX 250

1 Answer

Having problems with the brakes on my f150 pickup i have changed the calipers and bleed them properly and still there is a problem can anyone tell me if it could be the master cylnder or the splitter valve...

maybe bleed the back brakes,Have you adjusted the back brakes yet?if the master cylinder is bad then the pedal will go all the way to the floor,and not always lets you stop.if the back brakes arent adjusted enough then you would have to pump them a couple of times to stop.The same if air was in the lines.

Sep 26, 2009 | 1989 Ford F 150

1 Answer

Keeps brackeing the carbone disk that runs the fuel pump

Are you setting the gap between the rotor and the pump body? .003-.005 each time
If the answer is yes, then check the shaft of the motor. Up & down movement of the shaft indicates a bad bearing and the movement will kill the gap that has been set and cause breakage of the rotor!
How to properly replace a rotor

Jan 08, 2009 | Master Heaters Master B115DT 115,000BTU...

2 Answers

Adjust clutch

no its hydraulic controlled

Oct 29, 2008 | 1984 Ford F 150

2 Answers

Rear disc brakes freezing up

Master cylinder may be bad or most likley air in the lines---bleed the brakes.

May 27, 2008 | 2005 Ford F-150

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