Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: 5.0thunderbird on December 15, 2013, 09:32:14 PM

Title: 2 piece crank
Post by: 5.0thunderbird on December 15, 2013, 09:32:14 PM
Does anyone have a 2 piece crankshaft for sale? Im in need of one
Title: 2 piece crank
Post by: TheFoeYouKnow on December 16, 2013, 04:54:21 AM
A 2 piece crank sounds like a bad day at the track.
Title: 2 piece crank
Post by: jcassity on December 16, 2013, 10:25:45 AM
prob a gasket / seal

a two piece crank does sound like a bad day
Title: 2 piece crank
Post by: TurboCoupe50 on December 16, 2013, 10:52:24 AM
If you mean for a two piece seal, AFAIK they are same...

What changed at approx same time as switching to one piece seal was the engine balance... Originally there was more meat in the 302/5.0 cranks so required a 28 oz flex & harmonic ballancer vs the later 5.0 of 50 oz... From '82-up all are 50 oz one piece seal, from '80-back are two piece and 28 oz... 1981?? Well that is anyone's guess, but I believe they are two piece and 50 oz...
Title: 2 piece crank
Post by: 5.0thunderbird on December 16, 2013, 11:46:02 AM
Could I use a newer crank in with a 2 piece rear main seal?
Title: 2 piece crank
Post by: 5.0thunderbird on December 16, 2013, 11:57:02 AM
I have 3 cranks and all of them are for 1 peice rear main seal now I have a block thats a 2 piece could I use ia 1 piece rear main crank for it or no?
Title: 2 piece crank
Post by: TurboCoupe50 on December 16, 2013, 12:12:34 PM
Quote from: 5.0thunderbird;425732
I have 3 cranks and all of them are for 1 peice rear main seal now I have a block thats a 2 piece could I use ia 1 piece rear main crank for it or no?


As long as you use the matching 50 oz rotating assembly(flex plate, harmonic balancer, pistons), I don't know of any reason it won't work... If you drop a late crank in a early engine with 28 oz balance components you'll be in trouble as it will vibrate badly...
Title: 2 piece crank
Post by: jcassity on December 21, 2013, 10:15:26 AM
tom, you disappeared for a while!,,, or maybe i did..... glad your still posting.
tried calling you a while back during my build for my son's bird... got it figured out though.
Title: 2 piece crank
Post by: TurboCoupe50 on December 21, 2013, 11:04:01 AM
Quote from: jcassity;425982
tom, you disappeared for a while!,,, or maybe i did..... glad your still posting.
tried calling you a while back during my build for my son's bird... got it figured out though.



Hi Scott, sorry I missed your call but the home number has changed to thwart off all the charities that want donations... No I'm not a scrooge but I found if you donate to charity "A", the remainder of the alphabet will be calling wanting same...

My bird is still exactly same cond as last April with no engine... I've been working on the '72 Comet, maybe once it's movable under it's own power again I'll get back to the Bird...     

Also with the train wreck this place had became and management setting on their ass, I'd had it, had to get away for awhile... I'll check in from time to time on a few of the forums but now mostly graze in greener pastures...

BTW

I see it took some of the forum members to correct the situation and they have my most hearty congratulations...