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How do you free a motor that seized from being stored for 2years


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Had same problem with an old flat head 6 cyl Rambler.  It would not budge.  It sat up for 6 years and one of the plugs was out of it.  We squirted Penetrol (penetrating oil) in all the cylinders, came back the net day with a fresh battery and tapped the switch a few times, waited about 2 hours, tapped the switch again and it spun freely.   We did the same thing with a frozen 8-N Ford Tractor and the penetrating oil did the trick!

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@Lance Johnson

What was the end result with this?, did you get the engine to turn?

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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  • 3 weeks later...
On ‎2‎/‎22‎/‎2019 at 5:20 PM, Lance Johnson said:

We soaked it with Marvel mystery oil for a few days. We set the timing, We got it to start, it ran a little rough at first  we discovered it had a bad valve so we had to take care of that problem but as of now it's running beautiful.  thank you for all your help 😃

@Lance Johnson I am so glad you got it running.   Good luck, post some photos if you can, Mike

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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