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Old 02-22-2013, 11:43 AM   #1
LSJUNIPER
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Default Flathead project

This is a flathead motor I bought to tinker around with, I want to learn more about these motors. I believe it's a 39 to 41.

101_0884.jpg

101_0882.jpg


Will attach more pics as I brake the motor down..
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Old 02-22-2013, 01:39 PM   #2
Bruce Lancaster
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Default Re: Flathead project

Side view shows the '39-40 bulges, it seems to have the long crank so not 1938.
Next--pop a head and we can tell for sure whether 221 or 239 originally. It has pulley setup for big truck, and many of those came with 239.
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Old 02-22-2013, 03:31 PM   #3
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Default Re: Flathead project

It was out of a big truck or a stationary engine. It had a generator fan. Sounds like a worth while project. G.M.
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Old 02-22-2013, 09:18 PM   #4
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Default Re: Flathead project

if it was out of a big truck try and find a set of heads from a car, truck heads are low compression
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Old 02-22-2013, 09:20 PM   #5
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Default Re: Flathead project

Weren't the bell housings attached to the block up until 1948 or 49? After that they could be split off, I think..???
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Old 02-22-2013, 09:43 PM   #6
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Default Re: Flathead project

I think you need to get it off that motor stand ASAP. You may find it in the floor, if not now its a good chance when you start swinging a wrench on it. The rear of the blocks on the 48 and back cant stand the pressure.
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Old 02-22-2013, 10:20 PM   #7
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Default Re: Flathead project

From here I'd call it a 42. It will pass the pencil test and I cain't see any bluges in the pan rail for any core plugs. See if the intake manafold gasket surface is raised up a little from the block. Walt
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Old 05-31-2013, 03:26 PM   #8
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Default Re: Flathead project

Quote:
Originally Posted by quickchange34 View Post
I think you need to get it off that motor stand ASAP. You may find it in the floor, if not now its a good chance when you start swinging a wrench on it. The rear of the blocks on the 48 and back cant stand the pressure.
Old Wives Tale !!!!
been building them for 40+ years on a stand like that !
Have 6 on stands at the moment !
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Old 05-31-2013, 04:23 PM   #9
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Old Wives Tale !!!!
been building them for 40+ years on a stand like that !
Have 6 on stands at the moment !
Why take chances!!!!!!!!!
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Old 06-02-2013, 05:53 PM   #10
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Why take chances!!!!!!!!!
after all these years & dozens of engines ....... like I said "An old Wives Tale " not even about taking a chance !!!!
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Old 02-22-2013, 10:57 PM   #11
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Default Re: Flathead project

Hey Walt, I stopped by your place in my 39 P/U in 2006 on my way to Nova Scotia. I had a shrould and a 6 bladed fan on the generator if you recall. G.M.
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Old 02-23-2013, 10:02 AM   #12
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Hey Walt, I stopped by your place in my 39 P/U in 2006 on my way to Nova Scotia. I had a shrould and a 6 bladed fan on the generator if you recall. G.M.
Hey GM. I remember that, it was a nice summer day. You and your wife and a friend of mine, we set in lawn chairs in from my shop and had great visit. I remember you drove in my drive and got out, opened the hood and pointed you heat gun at everything under the hood,it was running as cool a clam with Ships pumps, 6 bladded fan, shrould. Stop in again when you go to Nova Scotia. Walt
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Old 02-25-2013, 03:09 PM   #13
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Default Re: Flathead project

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Originally Posted by Walt Dupont--Me. View Post
Hey GM. I remember that, it was a nice summer day. You and your wife and a friend of mine, we set in lawn chairs in from my shop and had great visit. I remember you drove in my drive and got out, opened the hood and pointed you heat gun at everything under the hood,it was running as cool a clam with Ships pumps, 6 bladded fan, shrould. Stop in again when you go to Nova Scotia. Walt
Not being form New England,just exactly how" cool is a clam"[just for the record.LOL Phil
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Old 03-04-2013, 07:15 AM   #14
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Hey Phil, up here in Me. the salt water is alot cooler than it is in Florida. the clams have to bury in the mud the keep warm. LOL Walt
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Old 03-04-2013, 07:24 AM   #15
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I don't see any sign of the steel sleeves in the bottom end pic. If it's still 3-1/16 I'd call it a 39 engine. Walt
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Old 01-10-2015, 07:36 AM   #16
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Default Re: Flathead project

In your first photo I noticed a chain hoist. I fabricated a couple of straps and bolted them to #1 and 5 exhaust ports and used a hoist to stabilize the front of my 8BA until I can make a side exhaust plate for my stand. Cheap peace of mind.
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Old 01-12-2015, 11:34 AM   #17
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Nice truck 41LjH
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Old 07-04-2015, 02:58 PM   #18
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Come up here to Me. Phil and we'll go to coast and get some clams. If there to cold we'll steam em. Walt
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Old 02-23-2013, 08:12 PM   #19
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I took the oil pan off, there is four freeze plugs. Does that make it a 39 to 41? The person I bought it from said it came out of a truck. The water pumps also had double pulleys......
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Old 02-25-2013, 06:04 AM   #20
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Default Re: Flathead project

The intake and heads are off.

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