Problem using old torque convertor?

Jonb442 · April 20th, 2009, 09:32 PM

The original converter for my '69 442 has been sitting 15+ years, and I'd like to use it again once I get the car together. It functioned fine before I removed it. Will I have a problem using it again after it sat for so long? I plan on eventually swapping in a TH2004R so it will be somewhat temporary. Also, does anyone by chance know if the lower flywheel cover is the same between a TH400 and TH2004R? Thanks!

-Jon

joe_padavano · April 21st, 2009, 07:25 AM

Quote:

Originally Posted by Jonb442

The original convertor for my '69 442 has been sitting 15+ years, and I'd like to use it again once I get the car together. It functioned fine before I removed it. Will I have a problem using it again after it sat for so long? I plan on eventually swapping in a TH2004R so it will be somewhat temporary. Also, does anyone by chance know if the lower flywheel cover is the same between a TH400 and TH2004R? Thanks!

-Jon

Torque converters do have internal bearings and bushings that can wear out. If you really only intend for this to be temporary, go for it, but in my experience, "temporary" tends to last several years.

jaysun · April 21st, 2009, 08:33 AM

Depends on how it was stored. if it was stored covered you should be ok. However if it was stored uncovered , it would of accumulated dust and junk, over the years, and the trash will circulate through the transmission. and the transmission cooler. (specifically the lube system). However they can be cleaned either by a tranny shop or by you, if your brave enough. It requires drilling a smalll hole in a specific place and a special rivit.

Also i believe that most hydraulic fluid,including transmission fluid, is hydroscopic (absorbs water) in nature. i'd remove as much of the old fluid in the converter as possible and flush the converter with a quart or two of fresh fluid. water in the fluid causes clutch failure.

/usual disclamer/ not a tranny expert but learning

Jason

Jonb442 · April 21st, 2009, 07:24 PM

Thanks guys. I think I'll flush it out and run it. I guess if/when it breaks that will be the time to swap to a 2004R.

-Jon

April 20th, 2009, 09:32 PM	#1 (permalink)
Jonb442 Registered User Join Date: Feb 2009 Location: South San Francisco, CA Posts: 12	Problem using old torque converter? The original converter for my '69 442 has been sitting 15+ years, and I'd like to use it again once I get the car together. It functioned fine before I removed it. Will I have a problem using it again after it sat for so long? I plan on eventually swapping in a TH2004R so it will be somewhat temporary. Also, does anyone by chance know if the lower flywheel cover is the same between a TH400 and TH2004R? Thanks! -Jon Last edited by Jonb442; April 24th, 2009 at 07:28 PM..

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Torque Specifications	442 Guatemala	Big Blocks	1	February 19th, 2009 08:20 PM
I see torque in my future	gearheads78	Big Blocks	9	August 3rd, 2008 08:04 PM
Horsepower and Torque???	olds69er	Small Blocks	6	April 25th, 2008 07:15 AM
Which convertor should I get?	Redog	Transmission	6	November 16th, 2007 06:52 PM
TH400 torque convertor identification	handsomened	Transmission	0	March 29th, 2007 04:00 PM

April 21st, 2009, 08:33 AM	#3 (permalink)
jaysun ate glue as a child Join Date: Feb 2009 Location: madison wi Posts: 75	Depends on how it was stored. if it was stored covered you should be ok. However if it was stored uncovered , it would of accumulated dust and junk, over the years, and the trash will circulate through the transmission. and the transmission cooler. (specifically the lube system). However they can be cleaned either by a tranny shop or by you, if your brave enough. It requires drilling a smalll hole in a specific place and a special rivit. Also i believe that most hydraulic fluid,including transmission fluid, is hydroscopic (absorbs water) in nature. i'd remove as much of the old fluid in the converter as possible and flush the converter with a quart or two of fresh fluid. water in the fluid causes clutch failure. /usual disclamer/ not a tranny expert but learning Jason

April 21st, 2009, 07:24 PM	#4 (permalink)
Jonb442 Registered User Join Date: Feb 2009 Location: South San Francisco, CA Posts: 12	Thanks guys. I think I'll flush it out and run it. I guess if/when it breaks that will be the time to swap to a 2004R. -Jon