(800) 853-2651
SHOP NOW

Onan engine problem any ideas

are the contacts clean? gotta be clean -- are the points going back and forth like they should? If the points aint moving the cam gear is stripped of a few of its teeth -- common on an onan -- let us know and we can go from there -- Roy
 
jocco,It could be that special 2 cyl coil.Get the points closed and with ignition on open them with a screw driver to check spark.Hook an old plug to each of the plug wires and ground the plug base on the engine head ,block and look for spark when the points are opened.
 
Yes points are moving and has fire but none to the plugs filed them but no help. Engine just has a coil 2 cylinder type.
 
I think I'd put a test light on the primary side of the coil and see if it flashes when you crank it over, if it does then I'd replace the coil.
 
What I should have said was what spec,or post full model and serial number. But here are a few items to check. Condensor would be the first.If it has a red cap on it change it. It could be one of the ones Onan had a problem with.If it has the plug wires with the metal shield. Change to automotive style wire. The braids were known to break and cause problems.If it has the plastic coil under the exhaust manifold. Check it for cracks. Don't worry about the cam gear stripping. Doesn't happen on a CCK. Coil's rarely go bad but it can happen.Check it out with new plugs.Let me know what you find. Remember both plugs fire at the same time.The CCK is the one everyone is looking for. The best Onan ever made.At one time there was a six month back order list. Just to get one.
 
You must log in or register to reply here.

Similar threads

E
D17 Allis chalmers series 2
Replies
12
Views
547
EasyE
E
A
Ferguson TO30 wiring
Replies
5
Views
240
Ericp351
E
S
Sears 18/6 lawn tractor carb problems
Replies
2
Views
633
Duner Wi
D
R
Would you hazard a guess on a JD 3 pt system
Replies
4
Views
586
Tx Jim
Tx Jim
M
Case 446 lawn tractor
Replies
1
Views
247
Klyde
Klyde
Tractor Parts Tractor Manuals

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

Back
Top