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Old 02-25-2013, 03:28 PM   #21
Bruce Lancaster
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Default Re: Flathead project

Heads off...freeze plug bulges confirmed...'39-40 221
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Old 02-26-2013, 06:02 AM   #22
LSJUNIPER
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Default Re: Flathead project

Distributor, water pumps, oil pan removed, yuk!!!! what a mess in side the block...sludge city!!! LOL!!! So far I can't see any cracks.

101_0892.jpg

101_0893.jpg
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Old 02-26-2013, 06:31 AM   #23
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Default Re: Flathead project

Took the head gaskets off yet?

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Old 02-28-2013, 05:57 AM   #24
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Mart,
I left the head gaskets on for now, to protect the mating surface from being damaged while taking the motor apart.

2012-12-29_12-03-35_363.jpg

2012-12-04_21-07-31_436.jpg
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Old 02-28-2013, 06:04 AM   #25
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I think this motor has had work done to it in the past, found one of the tappets to be slotted, the rest are the non slotted type..

2012-12-29_12-07-26_346.jpg
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Old 03-04-2013, 05:53 AM   #26
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Some more pics,

2012-12-29_12-47-06_519.jpg

2012-12-31_12-16-41_201.jpg

2013-01-02_17-20-53_82.jpg

2012-12-29_12-04-22_471.jpg

2013-01-07_11-08-34_428.jpg
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Old 03-04-2013, 05:58 AM   #27
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And more, Almost ready to bring the block to the machine shop for claeaning and a mag test for cracks. If all OK then a pressure test...I desided that I will bring the block to Eastwoods Auto Machine...
~0513779.jpg

2013-01-07_11-08-24_432.jpg
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Old 03-04-2013, 06:09 AM   #28
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Default Re: Flathead project

The last "Flathead" I tore down and got to this point, pulling the pan was painfull. It had the dreaded pan rail cracks on both side
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Old 03-04-2013, 07:15 AM   #29
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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   #30
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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 03-04-2013, 11:48 AM   #31
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Walt, there isn't any sleeves, I will call it a 39..No cracks in the block that I can see...
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Old 03-11-2013, 04:54 AM   #32
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The block does not have any cracks in it and it passed the pressure test. More pics...


2013-03-01_12-17-56_600.jpg

2013-03-01_12-18-55_453.jpg

2013-03-01_12-19-13_951.jpg

2013-03-01_12-19-36_811.jpg
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Old 03-11-2013, 06:07 AM   #33
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Looks very nice. Congrats on the crack free status. What process did they use to clean it up?

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Old 03-11-2013, 10:28 AM   #34
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It was dipped in a hot tank about 3 times, 2 days per dip. Mark at Eastwoods auto said it was a dirty block. After the hot dip Mark pressure washed it. He then rough bored the cylinders .030 over.
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Old 05-29-2013, 05:00 AM   #35
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Update, the motor is home from the machine shop, Eastwoods Auto Machine in Somersville CT. Took the advise of quickchange34 and mart and made a bracket to hold the motor from the exhaust ports...see pics...Thanks

~3338253.jpg

2013-05-28_14-48-12_885.jpg
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Old 05-29-2013, 06:13 AM   #36
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Default Re: Flathead project

I keep looking at the intake manifold surface on the block, Of all the pic I still cain't tell if it's a raised intake surface, in some of the pic it looks like it does. But, the engines with a raised surface were late 41-42 and had sleeves, so with no sleeves I'd call it a 39. Walt
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Old 05-29-2013, 10:25 AM   #37
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Walt, Yes it's a 39. Went to VanPelt sales webpage and I was able to figure it out by there section on how to ID a flathead motor....
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Old 05-29-2013, 12:56 PM   #38
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I see the head studs have been removed. Did this present any problems? It seems like the hardest problem with the crusty blocks I have worked on.
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Old 05-29-2013, 01:58 PM   #39
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I did try and remove the head studs myself, but they wouldn't budge. When the block was dipped into the cleaning tank the studs then were able to be removed. I had the machine shop remove them and two of them had to be drilled out.
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Old 05-29-2013, 02:04 PM   #40
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Default Re: Flathead project

Just a little warning - don't run a tap down the head stud holes - they are a tight thread and a tap will open them out. Use a thread restorer or an old stud or bolt with a slot cut in it.

If you already knew this I apologise, but it isn't obvious to a novice.

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