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Old 02-25-2021, 12:05 PM   #41
tubman
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Default Re: Trouble shoot 1950 8Ba initial start up Help

If it has never been run since the rings were installed, the rings have probably not seated and those numbers may not be as bad as they seem. They should be sufficient to start the engine though.
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Old 02-25-2021, 12:18 PM   #42
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Default Re: Trouble shoot 1950 8Ba initial start up Help

The compression numbers don't look that bad for unseated rings, so that should rule out any valve issues. So about has to be an ignition problem. Can you post a couple of photos of the distributor in place that shows the wiring harness and how it is routed to the plugs?

Last edited by JSeery; 02-25-2021 at 08:07 PM.
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Old 02-25-2021, 12:19 PM   #43
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Default Re: Trouble shoot 1950 8Ba initial start up Help

Those numbers are more typical of a worn engine. As noted there is enough compression to start it. Problem would seem to be improper timing.
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Old 02-25-2021, 12:19 PM   #44
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Default Re: Trouble shoot 1950 8Ba initial start up Help

Also, when you check the spark at the plug, is it a bright blue spark?
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Old 02-25-2021, 12:26 PM   #45
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Default Re: Trouble shoot 1950 8Ba initial start up Help

If you are serious in trying to get this started, I suggest removing the dual carb thingy, bolting your best carburetor directly to the manifold and replacing the spark plugs with new ones (the existing plugs are probably very compromised from the previous attempts at priming the engine in various ways). Make sure you still have spark and gas to the carb. Give it one more try before tearing it down.

If it still doesn't start, you might try turning the distributor 180 degrees and resetting the timing.
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Old 02-25-2021, 01:21 PM   #46
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Default Re: Trouble shoot 1950 8Ba initial start up Help

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My thoughts? It should fire on your compression. The oil increases compression because the rings aren't seated.
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Old 02-25-2021, 01:44 PM   #47
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Default Re: Trouble shoot 1950 8Ba initial start up Help

If thatís the case, wad a piece of paper towel stuff in plug hole bump engine when it pops out your on compression stroke
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Old 02-25-2021, 07:37 PM   #48
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Default Re: Trouble shoot 1950 8Ba initial start up Help

Is yours like this? If so the cam is in correct R
Attached Images
File Type: jpg 8 BA timing.jpg (68.9 KB, 93 views)
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Old 02-25-2021, 11:09 PM   #49
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Default Re: Trouble shoot 1950 8Ba initial start up Help

If youíre using repro condenser and points they are junk. I had problems on initial start up because of weak spark. Bought NORS condenser and point and it started right up.
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Old 02-26-2021, 06:35 AM   #50
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Default Re: Trouble shoot 1950 8Ba initial start up Help

Appreciate all the help! Spark is BLUE
New 12V harness installed for complete car
Power Master starter and Power Master generator
Which is an really an Alternator
These are the best $600 with tax between the two
12 volt system and new battery that I charge between intervals
Starter is strong and fast
I am going to convert to adjustable lifters and a new intake
Between the two I think I will have exhausted the issues
Yesterday Sprayed ether and poured fuel down the hatch again today and still the plugs did not smell strong of gas or ether as they should nor did they appear wet . I think that hokey carb set up is bogus and maybe my 94 rebuilds suck although they are squirting???
It’s almost like there is a blockage which is why I am going after the induction set up

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Old 02-26-2021, 07:52 AM   #51
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Default Re: Trouble shoot 1950 8Ba initial start up Help

I think the cam gear dot is three teeth to the left.
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Old 02-26-2021, 08:26 AM   #52
51 MERC-CT
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Default Re: Trouble shoot 1950 8Ba initial start up Help

Just a suggestion, before I did anything else, I would remove the phony dual intake (as previously suggested).
Mount a single carb and try it that way.
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Old 02-26-2021, 09:34 AM   #53
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Default Re: Trouble shoot 1950 8Ba initial start up Help

Quote:
Originally Posted by jimvette59 View Post
I think the cam gear dot is three teeth to the left.
If you look back at the thread you will see crank dot and cam slash line up while pulley dot and pointer line up and rotor is setting at number one plug wire. We have established that.
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Old 02-26-2021, 09:35 AM   #54
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Default Re: Trouble shoot 1950 8Ba initial start up Help

51merc and Tubman good test suggestion on single carb and will try before getting rid of more eagles$$$$$
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Old 02-26-2021, 09:40 AM   #55
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Default Re: Trouble shoot 1950 8Ba initial start up Help

question regarding distributor vacuum advance. currently one of the 94 carbs has the vacuum port built in. If i switch to a different 94 without can i run the vacuum advance line to an aluminum spacer between the 94 and the manifold? Will it work there?
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Old 02-26-2021, 09:57 AM   #56
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Default Re: Trouble shoot 1950 8Ba initial start up Help

Is the distributer gear on the cam correctly installed and is it tight
so as not to rotate when it meshes with the distributor gear?
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Old 02-26-2021, 10:05 AM   #57
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Default Re: Trouble shoot 1950 8Ba initial start up Help

Quote:
Originally Posted by Bustingear View Post
question regarding distributor vacuum advance. currently one of the 94 carbs has the vacuum port built in. If i switch to a different 94 without can i run the vacuum advance line to an aluminum spacer between the 94 and the manifold? Will it work there?
No, the stock distributor requires ported carb. vacuum to operate correctly, not manifold vacuum.
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Old 02-26-2021, 10:05 AM   #58
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Default Re: Trouble shoot 1950 8Ba initial start up Help

Quote:
Originally Posted by Bustingear View Post
question regarding distributor vacuum advance. currently one of the 94 carbs has the vacuum port built in. If i switch to a different 94 without can i run the vacuum advance line to an aluminum spacer between the 94 and the manifold? Will it work there?
No, that distributor requires a specific carburetor to work. It needs a mixed signal from both above and below the throttle plate.
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Old 02-26-2021, 10:58 AM   #59
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Default Re: Trouble shoot 1950 8Ba initial start up Help

It should do something with starting fluid and the compression readings you are getting. I'm unsure if adjustable lifters will accomplish anything at this point. Do you have another stock distributor that you can swap in? Maybe the Petronix is flaking out...
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Old 02-26-2021, 11:50 AM   #60
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Default Re: Trouble shoot 1950 8Ba initial start up Help

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It should do something with starting fluid and the compression readings you are getting. I'm unsure if adjustable lifters will accomplish anything at this point. Do you have another stock distributor that you can swap in? Maybe the Petronix is flaking out...
checked it at the spark plug tip while in rotation
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