help with flexplate!!!
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help with flexplate!!!
ok heres the deal, i am old school, i drag race old carb cars and like them, i am putting all carb and c6 in my 90 250, have the 351w auto, had the e40d, trans was going and lost oil pressue so rebuilt motor and have a rebuilt c6, QUESTION IS: the c6 wont bolt flush with the block, i have the spacer on it from the e40d but still off by 1/4 inch give or take, i am using the e40d flexplate but i am thinking the mating surface may differ from c6-e40d, i really hope someone can answer this, this is my only hurdle i have, some say they are the same others say they are diff. they measure out the same but i dont have a c6 to compare with, thanks for the help----i love the looks of the truck so thats why i am swapping all, and it is a 2wd by the way---
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From: Central Florida
Welcome and good luck with the project. By what I think I read, the trans is 1/4" from bolting to the block. I know it sounds dumb, but I would first check the alignment pins and holes for burrs. Then I would put white lithium grease on the trans and bolt it up and take if back off, this will tell you what's in the way. If it is T/C or flywheel, then maybe the specialized forums below will have more information on the parts.
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yeah i have checked the burrs, never hurts to have someone check, when i tighten it up it actually locks up the trans so it is jammed somewhere, someone said to back off bolts until its free and space it, kinda seems like a break waiting to happen, but as you said the t/c may be wrong, got it from a trans shop with the trans but you never know, i talked to summit racing and they said flywheels are the same(flexplate), so i will keep checkin and hopefully someone else has had this problem, thanks!!
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did that 3 times now,lol, running out of ideas but going crazy fast, someone said the stamping has to say c6 e40d, do any of you know anything about that? i have found flexplates for c6 and they dont say used for e40d? and e40d flexplates seem to be kinda hard to find?????
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And the guide pins, fit into the holes in the tranny??
Did you take the cobnverter off the flexplate, and put it into the shaft on the tranny?? sometimes that seal is a bear, but if you dont get it right, you will surely take out the pump, and be back at square one. Some times it takes a couple of torque converter to tranny mate ups, and once it is in measure, or note the distance it is inset to the bell housing.
Just throwing out a bunch of info is all.
Did you take the cobnverter off the flexplate, and put it into the shaft on the tranny?? sometimes that seal is a bear, but if you dont get it right, you will surely take out the pump, and be back at square one. Some times it takes a couple of torque converter to tranny mate ups, and once it is in measure, or note the distance it is inset to the bell housing.
Just throwing out a bunch of info is all.
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That is my suspicion too, unless he has wrong torque converter. When all else fails, put converter into pump, take straightedge across bellhousing, and measure to T/C mating/bolting surface. Then measure from back of block/spacer to T/C mating surface on flexplate. The dimension from block to flexplate T/C mating surface should be a minimum of 1/4" difference (less) than the trans bellhousing to T/C mounting to allow the T/C to move towards flexplate.
Also measure the pilot on T/C from mating surface to front of T/C pilot, to verify it isnt too long.
If it measures correct, then measure the crank pilot hole, and the pilot on the T/C to make sure the T/C will fit the pilot hole.
Also measure the pilot on T/C from mating surface to front of T/C pilot, to verify it isnt too long.
If it measures correct, then measure the crank pilot hole, and the pilot on the T/C to make sure the T/C will fit the pilot hole.
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D1ZZ6375A .. Flywheel (Flexplate) / 164 Tooth Ring Gear / Some are marked: D1ZP-6375-AB.
Fits: 1980/97 351W / There is another used on some 1980/83's.
Since the Ford truck parts catalogs do not mention transmission types, this puppy fits them all.
This same flexplate was also used on 1975/79 351W Econolines, 1971 and later passenger cars (some 302's / 351C 2V, 351W), as you mighta noticed by its 1971 Mustang part number.
Fits: 1980/97 351W / There is another used on some 1980/83's.
Since the Ford truck parts catalogs do not mention transmission types, this puppy fits them all.
This same flexplate was also used on 1975/79 351W Econolines, 1971 and later passenger cars (some 302's / 351C 2V, 351W), as you mighta noticed by its 1971 Mustang part number.
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it is the stud type, we just pulled the trans again and both myself and father tried to seat it further, it has a slight "wobble" to it still, i never had that with a c4 or 5, first c6 for a small block, but thats all i can figure is it has to be the converter, it fits flush on the flexplate so pilots are good, measured before hand also, so crossed that off, it just seems like the converter is the issue, is there a helpfull hint to "pop" it in, i pushed on it and turned several times and nothing? kinda getting fed up,lol, all this help has been great, thanks
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From: Las Vegas, Nevada
Grab the pilot on the tourque convertor and gently wiggle it while you spin it. It has to catch the splines on the shaft and seat into the pump with the outer collar. when you have done that you can check if right by trying to reach your fingers behind the convertor back side. it should be a snug fit for your fingers. also look at the back of your crankshaft and make sure that your crank doesn't have a pilot bearing installed for a standard trans. It wouldn't be the first time I've seen a pilot brg in a crank shaft. The machine shop or rebuilder might of switched crankshafts on you. Also make sure the drain plug is lining up with the correct hole in the flex plate.
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