743 Bobcat Glow plug / Starting Problem Update and Question

First of all to everyone who posted, Thank you very much. Here is what I found. I talked a Bobcat mechanic and he told me to unhook buss bar to the glow plugs and put 12 volts to the positive post of the glow plug, if i got a spark the glow plug was good, if no spark it was bad. I bought 4 more new glow plugs and replaced them last night and that solved my problem. About 10 seconds on the glow plug switch and it started right up, and since we have owned the bobcat, it has never started that good on a cold start. Now my question is what could have caused the first batch of glow plugs go bad, that is if the were good to begin with, and I did not test them before the installation? The new set I did test with an ohm meter and they checked out good. Thanks again, Jack
 
We had to do our 743b we had it 20 years before had to replace them make sure to wire brush all connections till shiny high resistance causes high current
 

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.

Back
Top