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390 Issues !

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carguy47 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote carguy47 Quote  Post ReplyReply Direct Link To This Post Topic: 390 Issues !
    Posted: 19-November-2014 at 8:49AM
Hey guys, I purchased a newly rebuilt 390 FE motor. I put it in my 1938 ford P/U. Once I bolted it to the torque convertor, I tried to turn the motor over to get to the other 2 bolts. I CAN"T BUDGE THE MOTOR? I am worried about breaking the bolt in the crank.
I sprayed WD40 in the spark plug holes. Spark plugs are out, I primed the motor with the distributor out.
Dead  Angry
Any ideas? Whats the deal? Did the builder torque the crank down? thx
You have to build em to drive em!
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Rockatansky View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 19-November-2014 at 9:00AM
the engine was free before tightening the 2 converter bolts?
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carguy47 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote carguy47 Quote  Post ReplyReply Direct Link To This Post Posted: 19-November-2014 at 9:40AM
you know what, i did not check. Assumption is the mother of all #$%#$@.
You have to build em to drive em!
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Rockatansky View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 19-November-2014 at 10:43AM
I like to rotate the engine 90* at a time while I run the oil pump
w/o the rotations the lifters don't cycle the plungers & flow oil to the rockers
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californiajohnny View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 19-November-2014 at 1:55PM
another possibility: the converter isn't all the way into the pump and binding, you may try loosening the bell housing bolts and move the tranny away from the engine about 1/8" see if the crank turns!
JOHN
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77 CELICA CUSTOM
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Big Bird View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Big Bird Quote  Post ReplyReply Direct Link To This Post Posted: 19-November-2014 at 2:02PM
^^^ Johnny beat me to it^^^
Unbolt and see if it cranks.
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75GranMan View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 75GranMan Quote  Post ReplyReply Direct Link To This Post Posted: 19-November-2014 at 2:49PM
If the engine rotates when unbolted.and the converter is seated all the way into the pump. Check and make sure you have the correct flexplate. I once was given the incorrect flex plate by the local parts jobber. When bolted together the flexplate drove the converter into the front pump...Drove the car about 1/4 mile before the converter wiped the pump out.I was not happy!
John 75Gran Torino 4spd
Tighten it down until it snaps and then back it off a half turn!
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tyfaciane View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tyfaciane Quote  Post ReplyReply Direct Link To This Post Posted: 15-November-2019 at 2:18AM
I know this is a very old thread, but....

The bolts holding the flexplate on are too long!  They're going thru the flange on the end of the chrankshaft and binding against the back of the block.

there are 3/4" long bolts for automatic without reenforcement ring
there are 15/16" bolts for Manual Transmission Flywheel or Automatic Flexplate with reenforcement ring.

I use the 3/4" bolts with all Automatic Flexplate Applications
I use 15/16" bolts with all Manual Transmission Applications

Don't ask how I know this - lol!

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 16-November-2019 at 6:57AM
i have at least 3 different length flex/fly bolts in my stash, maybe 4 different lengths
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