No spark on an Allis-Chalmers B112.
Posted March 17, 2016 - 09:14 PM
Posted March 17, 2016 - 09:29 PM
The plunger could be worn or stuck out possibly.
- boyscout862 said thank you
Posted March 17, 2016 - 10:15 PM
Posted March 18, 2016 - 06:23 AM
Sounds like a worn plunger, what model engine?
- Jwaldrop said thank you
Posted March 18, 2016 - 06:53 AM
Welcome to GTT. You can download the B&S engine manual from our Manuals Section(The Repaimans'). It will have a trouble shooting section to help find what the problem is. The points pungers were notorious for leaking when they get older. There is a specific proceedure for replacing them correctly. The points only close for one brief instance in the revolution of the engine, it may be difficult to spot if it is actually moving. I usually remove the points, and pull on the plunger and then push it in to feel for movement. If it is jammed, I replace it. It is a pia technique involving a self taping screw. Before reinstalling the points, I clean, polish, and align them. Good Luck, Rick
Edited by boyscout862, March 18, 2016 - 07:05 AM.
- MolonLabe and Jwaldrop have said thanks