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Old 10-04-2020, 06:54 PM   #1
1935TOWtruck
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Default Smoking upon start up

Hi everyone need little help with 30 pick up was backfiring and popping so retired now starts no problem but smokes like crazy around exhaust.Changed exhaust manifold checked for stuck valves even changed tailpipe any suggestions thanks
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Old 10-04-2020, 08:57 PM   #2
1930-Pickup
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Default Re: Smoking upon start up

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Hi everyone need little help with 30 pick up was backfiring and popping so retired now starts no problem but smokes like crazy around exhaust.Changed exhaust manifold checked for stuck valves even changed tailpipe any suggestions thanks
You changed the exhaust manifold and exhaust pipe because its smoking

Are you using fresh fuel?

Before you do anything, you need to do a diagnostic evaluation on the engine.
1. Compression test all four cylinders.
2. Check the timing, plugs, cap, points, condenser, rotor.
3. Check the valve gaps.
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Old 10-04-2020, 09:13 PM   #3
Curtis in MA
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Default Re: Smoking upon start up

Is it oil smoke or mouse nest burning?
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Old 10-04-2020, 10:13 PM   #4
Bill G
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Default Re: Smoking upon start up

Well, here's the deal. Manifold and or tail pipe won't cause or cure smoke. Smoke is caused in the engine and that is a big topic.
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Old 10-04-2020, 10:29 PM   #5
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Default Re: Smoking upon start up

Is it white smoke (coolant) black smoke (fuel) or blue smoke (oil)???
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Old 10-05-2020, 12:15 AM   #6
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Default Re: Smoking upon start up

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Is it white smoke (coolant) black smoke (fuel) or blue smoke (oil)???
A very key question ?
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Old 10-05-2020, 02:26 PM   #7
1935TOWtruck
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Default Re: Smoking upon start up

Thanks everybody I will have to check color of that smoke and do compression test
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Old 10-05-2020, 02:29 PM   #8
redmodelt
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Default Re: Smoking upon start up

Could be oil burning off or bad manifold gaskets.
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Old 10-05-2020, 02:37 PM   #9
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Default Re: Smoking upon start up

If there are no odd sounds coming from engine? I would not rush to start taking things apart.

New gas with some Marvel Mystery Oil. Change you motor oil if you don’t know when it was last done. Than drive it. If still smoking after a coupe hundred miles, we can start checking other things. I would use 20w-50 HD oil in the engine if you don’t know it’s history. Maybe also a blue bottle of STP.

Please don’t become a parts replacer. Need to know what is wrong.

Enjoy.
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Old 10-05-2020, 03:52 PM   #10
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Default Re: Smoking upon start up

Quote:
Originally Posted by WHN View Post

Please donít become a parts replacer. Need to know what is wrong.
Sometimes the new parts used are worse than what is removed!
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Old 10-05-2020, 06:14 PM   #11
1935TOWtruck
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Default Re: Smoking upon start up

All New old stock parts,know about some of new ones a lot of them are not made correctly
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Old 10-05-2020, 06:14 PM   #12
1935TOWtruck
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Default Re: Smoking upon start up

Thanks for all the information
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Old 10-11-2020, 06:39 PM   #13
1935TOWtruck
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Default Re: Smoking upon start up

Got her fixed timing was out it would start but not run good also gav screw on carb was frozen
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Old 10-11-2020, 06:47 PM   #14
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Default Re: Smoking upon start up

[QUOTE=1935TOWtruck;1940616]Got her fixed timing was out it would start but not run good also gav screw on carb was frozen[/QUOTE]

Thanks for the feedback!
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