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02-13-2019, 01:44 PM | #21 |
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Re: Low Compression - keep trying or rebuild?
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The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 |
02-13-2019, 04:08 PM | #22 | |
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Location: Salinas, CA
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Re: Low Compression - keep trying or rebuild?
Quote:
Regards, Jim |
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02-13-2019, 05:49 PM | #23 |
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Join Date: May 2010
Location: Solihull, England.
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Re: Low Compression - keep trying or rebuild?
If it were me, I'd look at it like this:
I could pull the motor and rebuild it. Or I could get it running and drive it. Driving it will do one of two things. It will improve with driving, any smoke or other bad symptoms will clear up and it will run as well as any other running flatty. Or it will not run well, it smokes bad, runs rough, and smokes like a trooper. If the latter, you pull the motor and rebuild it. You're no worse off than if you had done that in the first place. If the former, you pat yourself on the back, compliment yourself on your judgement and revel in the fact that you saved yourself a load of expense and time. It's a win / no loss situation, you may as well just fire it up and stop worrying. Mart. |
02-13-2019, 07:22 PM | #24 |
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Join Date: Jan 2012
Location: Lyman,ME.
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Re: Low Compression - keep trying or rebuild?
^^^^ that’s some AWESOME, PRACTICAL advice right there^^^^^.......Mark
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I'm thinkin' about crankin' My ragged ol' truck up and haulin' myself into town. Billy Joe Shaver |
02-14-2019, 03:38 PM | #25 | |
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Join Date: May 2013
Location: Salinas, CA
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Re: Low Compression - keep trying or rebuild?
Quote:
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02-14-2019, 07:16 PM | #26 |
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Location: Santee, California
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Re: Low Compression - keep trying or rebuild?
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02-15-2019, 12:47 PM | #27 |
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Join Date: Mar 2011
Location: upstate NY
Posts: 478
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Re: Low Compression - keep trying or rebuild?
Compression is over rated.
https://youtu.be/1l-oUqnHBTU |
02-16-2019, 11:36 AM | #28 |
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Join Date: Jan 2014
Location: Orcas Island Washington
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Re: Low Compression - keep trying or rebuild?
And when the test is done, don't forget to take the brick off the accelerator before pushing the starter button! Don't ask.....
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Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson) |
02-16-2019, 12:25 PM | #29 |
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Join Date: Jan 2012
Location: Lyman,ME.
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Re: Low Compression - keep trying or rebuild?
I’d pay money to see the look on your face when the motor started!!!....Mark
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I'm thinkin' about crankin' My ragged ol' truck up and haulin' myself into town. Billy Joe Shaver |
02-18-2019, 02:24 PM | #30 |
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Join Date: Jan 2011
Location: Central Ohio
Posts: 5,064
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Re: Low Compression - keep trying or rebuild?
Also, if it was mine, I'd pull the oil pan, clean all the crap and sludge out of it (there will surely be some) before you start it. In many cases the old oil will have coagulated and turned into a nice thick layer of goo (depending on the type of oil that was in it). Don't pump all that crap through the engine . . . or worse, ruin the bearings because they're not getting a good supply of oil on initial start up.
Water pumps: You'll need a good set anyway . . . so if it was mine, I'd have 'Skips' water pumps rebuild your originals -- he does an excellent job and you'll be very thankful that you used him. When I had the water pumps out of it, I'd try flushing hot water through the engine (from the upper radiator hose location on the heads). See how much rust and other crap comes out of it. Ignition: - just take it off, clean the points with a point file, gap them and put a quality capacitor/condenser in it. Don't use an old vintage condenser - most of them have gone bad. Don't worry about losing your timing - the distributor used an offset "tang" so it will index when you put it back on. You may want to check the vacuum brake in it - taking it apart, making sure it is cleaned and operational, etc.. I would crank it over with 5 new quarts of oil in it, with the plugs out of it and do your compression tests. You can even crank it with 12 volts to really turn it over fast (I do this to get the oil pressure up). Before you start it - make sure you have oil pressure. It may actually run quite well after it warms up a bit and things get a chance to "loosen up and seal". You will probably need a new fuel pump - I'd recommend having CharlieNY (on this site) rebuild your original --- so it has the proper springs and diaphragm materials in it. Most of the "new" pumps have the completely wrong pressure settings. Once you've done the compression tests, started it and ran it through a few heat cycles - then recheck the compression and see what you have. You may be surprised on how this old girl might run . . . I know I was with the 59AB in my 32 Cab - it had sat in an unheated garage for 55 years - I cleaned the oil pan, put a new oil pump in it, pulled the heads and put new gaskets in it, new water pumps, new ignition and fired it up. It ran pretty well for the next two years that I drove it. (While I built a new engine for the car). One thing others have said - it is a LOT more fun having your truck running and driving, while you find another engine to build for it. Just having something to drive gives one a LOT of motivation to continue on the project! It ALWAYS helps me! |
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