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Next noob topic...intermittent/no spark


 
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hogluvr
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PostPosted: Fri May 14, 2021 2:49 pm    Post subject: Next noob topic...intermittent/no spark Reply to specific post Reply with quote

So if you've been following along in your playbook I am going down the line trying to fix things to get my '49 started. PO said it was a carb issues, so far I have found a stuck lifter, 2 plug wites crossed, wrong spark plugs and a leaking carb that would only run on choke. Think I have fixed all of these things so far. Was digging through somebody posts and someone suggested using an adjustable spark tester to test spark. Had used my China Freight checker to verify spark but decided to pick one up. Set it up for 1/4" gap as suggested hooked it up and hit the button. Got a nice spark for a couple of rotations, then nothing. Kept messing around and occasionally it would spark then stop. Jumped the key switch and no difference. Can anyone suggest the next steps to verify what is possibly wrong?
 
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JMOR
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PostPosted: Fri May 14, 2021 3:38 pm    Post subject: Re: Next noob topic...intermittent/no spark Reply to specific post Reply with quote

hogluvr wrote:
(quoted from post at 18:49:26 05/14/21) So if you've been following along in your playbook I am going down the line trying to fix things to get my '49 started. PO said it was a carb issues, so far I have found a stuck lifter, 2 plug wites crossed, wrong spark plugs and a leaking carb that would only run on choke. Think I have fixed all of these things so far. Was digging through somebody posts and someone suggested using an adjustable spark tester to test spark. Had used my China Freight checker to verify spark but decided to pick one up. Set it up for 1/4" gap as suggested hooked it up and hit the button. Got a nice spark for a couple of rotations, then nothing. Kept messing around and occasionally it would spark then stop. Jumped the key switch and no difference. Can anyone suggest the next steps to verify what is possibly wrong?
clean points & set gap.
 
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kossuth
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PostPosted: Fri May 14, 2021 3:53 pm    Post subject: Re: Next noob topic...intermittent/no spark Reply to specific post Reply with quote

hogluvr wrote:
(quoted from post at 15:49:26 05/14/21) So if you've been following along in your playbook I am going down the line trying to fix things to get my '49 started. PO said it was a carb issues, so far I have found a stuck lifter, 2 plug wites crossed, wrong spark plugs and a leaking carb that would only run on choke. Think I have fixed all of these things so far. Was digging through somebody posts and someone suggested using an adjustable spark tester to test spark. Had used my China Freight checker to verify spark but decided to pick one up. Set it up for 1/4" gap as suggested hooked it up and hit the button. Got a nice spark for a couple of rotations, then nothing. Kept messing around and occasionally it would spark then stop. Jumped the key switch and no difference. Can anyone suggest the next steps to verify what is possibly wrong?
Im assuming she has the old front mount distributor setup. With that said I would be doing some checking to make sure the proper resistors are in good shape and in place. Id also be doing a real good look over on the harness to make sure all the wires are in good shape.

Im not super savvy on the front mount setups but that is where Id start. Im sure some folks have some additional suggestions.
 
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hogluvr
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PostPosted: Fri May 14, 2021 4:16 pm    Post subject: Re: Next noob topic...intermittent/no spark Reply to specific post Reply with quote


Should add its been converted to 12v, and not too impressed with what the previous owners did to it? 🙄

I read you need to pull the dizzy to set timing, does that go for setting the points also?
 
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JMOR
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PostPosted: Fri May 14, 2021 4:21 pm    Post subject: Re: Next noob topic...intermittent/no spark Reply to specific post Reply with quote

hogluvr wrote:
(quoted from post at 20:16:10 05/14/21)
Should add its been converted to 12v, and not too impressed with what the previous owners did to it? 🙄

I read you need to pull the dizzy to set timing, does that go for setting the points also?
Front mount, located just above crank pulley....two bolts removes it. Only reasonable way to set points.
 
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hogluvr
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PostPosted: Fri May 14, 2021 4:25 pm    Post subject: Re: Next noob topic...intermittent/no spark Reply to specific post Reply with quote


Ok, thank you! Definitely not much room up there, kinda freaked out when I first saw it! 🤣
 
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JMOR
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PostPosted: Fri May 14, 2021 4:37 pm    Post subject: Re: Next noob topic...intermittent/no spark Reply to specific post Reply with quote

hogluvr wrote:
(quoted from post at 20:25:46 05/14/21)
Ok, thank you! Definitely not much room up there, kinda freaked out when I first saw it! 🤣
Easy to remove. Just be sure slots align such that distributor to timing cover seats with no gap before tightening bolts or will break casting! Slot has narrow & wide sides. Also, best for contact alignment purposes to put coil onto distributor before re-install.
 
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hogluvr
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PostPosted: Fri May 14, 2021 4:47 pm    Post subject: Re: Next noob topic...intermittent/no spark Reply to specific post Reply with quote


Thanks for the advice. Think I read that it's easier to pull if you disconnect cap, remove coil and thennpull the distributor?
 
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