Engine Backfiring. + amateur/newbie pics.
#61
You haven't said yet if you've checked to see if the belt is broken or not. If it's not broke then changing it is not going to solve any of your problems. Either do the check Indycam mentions above or get the distributor cap off to check it. This means removing the piece of big plastic tube to left of the cap and removing 2 screws. There's not much play in the 7 leads that go to the cap but maybe enough so you can peek in there and see if the rotor arm is loose. A spinning rotor = broken belt, resistance as you prod it means the belt is good.
#63
Take the first step... You'll be okay. Just make a clear mental note of all the things you do.. and then put them back in reverse order. Go slowly. It'll be fine.
#65
Also, keep in mind that the belt can be intact but could have slipped a notch or two or more. This can happen with an old dry belt per my personal experience a while back. There are folks on this site that can tell you how to determine if the alignment of the two rotors are correct. I knew once, but as with a lot of things, it has slipped out of my brain.
#66
You think maybe the belt inside the distributor is broken ?
There is a very easy quick test to do .
With the motor running ,
unplug the connector to the ignition switches one at a time .
When you unplug one of them , you are turning off one distributor / set of plugs / coil / ignition switch .
If the motor will run with A and or B unplugged
then the belt is still working .
If the motor runs well with one disconnected and poorly with the other ,
then you need to look into why it runs poorly on that side .
There is a very easy quick test to do .
With the motor running ,
unplug the connector to the ignition switches one at a time .
When you unplug one of them , you are turning off one distributor / set of plugs / coil / ignition switch .
If the motor will run with A and or B unplugged
then the belt is still working .
If the motor runs well with one disconnected and poorly with the other ,
then you need to look into why it runs poorly on that side .
#68
Kahd and Indy, done it already.
And it is running poorly on the other because of this broken belt.
Which i'm assuming is due to the lack of distributor vent over the years.
But, there is a bit of rust / damage on the distributor. I'll post pics later.
And it is running poorly on the other because of this broken belt.
Which i'm assuming is due to the lack of distributor vent over the years.
But, there is a bit of rust / damage on the distributor. I'll post pics later.
#69
#70
If I understand you correctly you've disabled each distributor one at a time by following Indy's suggestion and the engine still runs, albeit poorly. This indicates the belt is not broken, atleast not completely.
Bill
90C2
Bill
90C2
#72
#75