Ive got a 210,000 Btu Mr Heater fuel oil forced air heater. When I first start it up now it blows bluish smoke for about 5 or 10 seconds. Some times it will keep blowing the smoke until I shake the unit. I have new hoses on it and the filter in the tank is clean and is running about 8.5 psi on the gauge. The igniter is working but am wondering if the nozzle might have some dirt in it. Any other ideas where to look for the problem?
- Thread starter Alan K
- Start date
Take the top off and watch the spray pattern when the heater first starts. If the nozzle is worn or plugged they will not atomize the fuel oil correctly. So the flame does not burn all the fuel. This is worse until the heater warms up and then it will more than likely burn better.
showcrop
Well-known Member
Saying that the "nozzle may have dirt in it" is similar to saying that it has not been serviced in awhile. The blue smoke means that it is pushing fuel for too long before firing up. They need a new nozzle every year, a new filter every year, and the electrodes need to be cleaned and checked for proper spacing. And while you are at it the heat exchanger needs to be cleaned or your heat is going up the flue.
Alan The spray pattern maybe correct but is the drop let size correct??? When they get worn they do not atomize the fuel into as small of a droplets. So it takes a little longer for the heater to burn the coarser droplets.
Also is the fuel from last year???? If it is replace it with fresh fuel and see what happens. I dump mine every spring and burn it in the tractor barrel. Then I fill then up with fresh K1 in the fall.
Also is the fuel from last year???? If it is replace it with fresh fuel and see what happens. I dump mine every spring and burn it in the tractor barrel. Then I fill then up with fresh K1 in the fall.
Similar threads
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.
Copyright © 1997-2024 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy