Weekend Freedom Machines banner
1 - 10 of 10 Posts

·
Banned
Joined
·
2 Posts
Discussion Starter · #1 ·
I've got a onan b43e i'm trying to disassemble completely to get new gaskets in it and inspect it, but cant get the crank gear off. there is a key in it and cant figure out how to get that out so i can get the gear off. any ideas would be great. thanks.
 

·
Registered
Joined
·
323 Posts
The face of that gear has two threaded holes. You will need a puller centered on the crankshaft and two 10-32 bolts.

I will be attempting same in the next few days.

Harbor Freight is a good source for inexpensive tools you use infrequently.
 

·
Registered
Joined
·
627 Posts
The best way to get that gear off is heat from a good torch. Heat just the gear (not the shaft) and it will expand, while leaving the crankshaft at the same size. Try to use as much heat as possible to quickly get the whole gear heated up. Then use the puller on it. It will be much easier that way.
 

·
Registered
Joined
·
58 Posts
Hello everyone! Keeping in mind that I am somewhat electrically inept, can someone tell me how to test the output of the alternator on my 98 455. It had been cranking slow and I had to jump start it during the cold snap we have here in Michigan. Once I got it started I was plowing with the headlights on and it just quit. I was able to jump start it again and got it inside. I put a voltmeter on the battery which is a few years old and got nothing. I will be installing a new battery but I want to make sure that the charging system is working. Any advice in simple terms will be greatly appreciated. Thank you in advance!!
 

·
Registered
Joined
·
326 Posts
Not a perfect test, but to see if it is charging:

Measure battery voltage without the engine running.

Now start the engine and measure voltage, quickly after starting.

there should be an increase in system voltage as the battery lost some charge with the start and the alternator/regulator should be in replenish mode. Normally, engine running system voltage should be around 13.2-6.

If you don't see that, more in depth tests are in order.
 

·
Registered
Joined
·
58 Posts
Ken,

Thank you!!! I bought a new battery and tested as you described. I was getting 13.4 volts with the system running. I went out and busted drifts for 2 hours with no issues.

Thanks again. This site is awesome!!!
 
1 - 10 of 10 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top