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  Is there way to test a C4's functionality on a bench?

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Author Topic:   Is there way to test a C4's functionality on a bench?

Posts: 1312
From: San Lorenzo, CA, USA
Registered: Aug 2001

posted 10-27-2002 08:16 PM     Click Here to See the Profile for rockafellz   Click Here to Email rockafellz     Edit/Delete Message   Reply w/Quote
Hey Fellas,

I picked up a used C4 complete w/linkage, converter, and bellhousing today in trade for a case of Budweiser!!

When the fluid was drained, it was a "little" dark red. The previous owner said that he pulled it from a rust bucket mustang that wasn't run since 1992. He was able to get the engine started and took it around the block a few times. He said it didn't slip and had no major leaks. The grime surrounding the transmission was REALLY THICK and almost a dirtlike substance. The car had 116,000 original miles.

Well, I plan to give this to my Godfather for christmas "ready to swap". But I'd like to confirm that the trans clutches and bands are functioning properly. Anyway to test a C4 on a bench? Or would transmission shops have bench testers of some sort?

Thanks in advance.


1966 Ford Mustang 2+2
Mine - Restomod in Progress

1966 Ford Mustang Coupe
Dad's - Original Unrestored

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Posts: 1564
From: Lynn Haven FL
Registered: Jun 99

posted 10-27-2002 10:12 PM     Click Here to See the Profile for 67stang   Click Here to Email 67stang     Edit/Delete Message   Reply w/Quote
How I was taught, you will need compressed air and you will need to take the vavle body off. You will also need to know where the passages go. A good manual will show you.

But by supplying compressed air down the passages you can tell/hear different clutches engaging. And while they are engaged, you can turn the input shaft to see what the output shaft is doing.

I don't remember the specific passages in the valve body, but I had better look them up. I need to check my rebuilt c-4 before I drop it in.

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