700r4 torque converter question - Diesel Place : Chevrolet and GMC Diesel Truck Forums
 
Home Forum Market Place Garage Lounge (0) Tuning Library DTC Tool Register Vendors
Go Back   Diesel Place : Chevrolet and GMC Diesel Truck Forums > GM Diesel Engines > 6.2L Diesel Engine
Register FAQ Forum Rules My Replies My Threads Mark Forums Read Auto EscrowAuto LoansInsurance

DieselPlace.com is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
Closed Thread
 
LinkBack Thread Tools
Old 03-13-2008, 07:24 PM   #1 (permalink)
vxdude21a
Diesel Technician
 
vxdude21a's Avatar
 
Join Date: Nov 2007
Location: Olympia WA
Posts: 123
iTrader Score: 0 reviews

700r4 torque converter question

Just got my tranny bolted up and what I have is about 3/8 or of a inch or better between the torque converter bolt holes and the flex plate when the torque converter is pushed all the way back in the transmission.

I'm wondering if I should use should I use spacers between the torque converter and felx plate where the bolts go. Its supposed to be a low stall converter made for a diesel and has 6 bolts holes.

thanks in advance
Jim
Offline  
Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-13-2008, 08:11 PM   #2 (permalink)
BlueBurby1
Diesel Sr. Technical Member
 
BlueBurby1's Avatar
 
Join Date: Nov 2007
Location: Stouffville, ON
Posts: 7,741
iTrader Score: 0 reviews
Send a message via MSN to BlueBurby1

Ontario Diesel Place Chapter Member

Armed Forces Club Member

nope, just bolt it up to the flex plate, and congrats on the correct terminology....too many idiots call it a flywheel, autos don't have flywheels....anyways, bolt it up without spacers...otherwise it might rub the tranny housing
__________________
2000 Chevrolet 6.5TD CC LB SRW 4X4
El Presidente of the 3500 CC LB SRW Club "Land Yachts"
Member #2 of the TLFTN Club - Loud and Proud
DIAGNOSTIC HELP CLICK HERE
EDIT SIGNATURE HERE
BOOST CONTROL HELP CLICK HERE
CHECKLIST CLICK HERE

For Members with vehicles with PassLock or PassKey Security issues. PM for details on "Fixing" this system.
Offline   Quick reply to this message
Old 03-13-2008, 10:28 PM   #3 (permalink)
dieselolds
George Costanza fan...
 
dieselolds's Avatar
 
Join Date: Sep 2003
Location: Newfoundland/Alberta Canada
Posts: 2,115
iTrader Score: 0 reviews
Send a message via MSN to dieselolds

Blue is right.Your in good shape if you had 3/8" clearance when the engine and tranny were bolted together.If you had no clearance,then i'd worry.No clearance would indicate the torque converter was not installed correctly to begin with.
__________________
1978 Chevrolet K20....with '81 5.7L DIESEL DX block/TH400

1993 Chevrolet K1500 Z71....with newly rebuilt '97 6.5 TD (506 squirter block)

1997 Chevrolet K1500 ext.cab Z71....6.5 TD engine is out....New 6.2 660 short block takes its place.Equipped with 4L80E/6.5TD cylinder heads and DS4 injection system.

1998 Chevrolet K1500 Z71.....with a '87 6.2L DIESEL and 700R4.

2002 Volkswagen Jetta TDI.....with a 1.9L turbo diesel/5 speed.Cold air intake system.

2013 Volkswagen Passat TDI comfortline....with 6 speed manual tranny and 2.0L turbo diesel.
Offline   Quick reply to this message
Old 03-14-2008, 09:33 AM   #4 (permalink)
0lee
Diesel Master
 
Join Date: May 2004
Location: Albuquerque, NM
Posts: 3,763
iTrader Score: 0 reviews

Lone Star Diesels Member

Quote:
Originally Posted by blueburby1 View Post
nope, just bolt it up to the flex plate, and congrats on the correct terminology
Hm, why is called 'flexplate'? Not that 'flywheel' seem to make more sense, but the flexplate doesn't flex --- or does it?
__________________
.
1985 Suburban, C20 with 4WD and 700R4, J-code engine, lifted, flowmaster mufflers, manual TCC lockup, manual high idle and cold advance, new injectors, electrical fuel pump, "HD" fuel filtering, rewired headlights ...

--- pls read '0lee' just as 'lee', the '0' is only to satisfy the forum software
Offline   Quick reply to this message
Old 03-14-2008, 10:52 AM   #5 (permalink)
High Sierra 2500
Diesel Sr. Technical Member
 
High Sierra 2500's Avatar
 
Join Date: Oct 2005
Location: Mid Michigan
Posts: 6,014
iTrader Score: 0 reviews

It's also known (probably a little more accurately but much less commonly) as a "drive plate". Whether or not it flexes at all I really don't know for sure, but I doubt it flexes significantly.
__________________
2000 K1500 Silverado Z71 ext cab short box 5.3 gas. 320,000 miles and counting

1927 Ford Model T pickup. Bone stock 22 hp 4 cylinder. Driven to work on a regular basis...
Offline   Quick reply to this message
Old 03-14-2008, 01:52 PM   #6 (permalink)
jmay2174
Diesel Specialist
 
Join Date: May 2005
Posts: 565
iTrader Score: 0 reviews

Sometimes a new torque converter will come with new bolts. They will have a special Locktite coating. If you use your old bolts, clean them well on a wire wheel and use Locktite on the threads. After the transmission bellhousing is bolted to the engine (30 ft-lb), install the converter/flexplate bolts and torque them to 50 ft-lb. You don't want to strip the threads with too much torque and you don't want them coming loose.

While the transmission is off, this is a good time in inspect your flexplate starter teeth. If they are worn, you can replace the starter ring.

FYI, GM calls the flexplate a "flywheel".

Joel

Last edited by jmay2174; 03-14-2008 at 01:54 PM. Reason: puntuation
Offline   Quick reply to this message
Old 03-15-2008, 06:18 PM   #7 (permalink)
vxdude21a
Diesel Technician
 
vxdude21a's Avatar
 
Join Date: Nov 2007
Location: Olympia WA
Posts: 123
iTrader Score: 0 reviews

bolted it on and it works great but....

when I crawl under and watch it when its running it sure seems like its out of round or off center, I mean you can see it as its spinning that its not true. is there anything i can do about it ??.

I get a little more vibration at idle then i used to but I don't seem to notice any strong vibration when running.
Offline   Quick reply to this message
Old 03-15-2008, 08:52 PM   #8 (permalink)
pontiac59
Diesel Technician
 
pontiac59's Avatar
 
Join Date: Nov 2007
Location: Upstate NY
Posts: 253
iTrader Score: 0 reviews

On this same subject, what's the torque rating and is loctite needed on the flexplate-to-crankshaft bolts?
__________________
1985 Suburban C20 HD 6.2L J-code 2WD
1989 Suburban R1500 5.7L gas 2WD
1986 Suburban C10 6.2L c-code 2WD parts truck- stripped and scrapped already
Too many antique cars to list...
Offline   Quick reply to this message
Old 03-15-2008, 09:39 PM   #9 (permalink)
BlueBurby1
Diesel Sr. Technical Member
 
BlueBurby1's Avatar
 
Join Date: Nov 2007
Location: Stouffville, ON
Posts: 7,741
iTrader Score: 0 reviews
Send a message via MSN to BlueBurby1

Ontario Diesel Place Chapter Member

Armed Forces Club Member

ditto...i didn't use loctite, no problems yet, didn't toqrue either...just cranked the shit out of EVERYTHING
__________________
2000 Chevrolet 6.5TD CC LB SRW 4X4
El Presidente of the 3500 CC LB SRW Club "Land Yachts"
Member #2 of the TLFTN Club - Loud and Proud
DIAGNOSTIC HELP CLICK HERE
EDIT SIGNATURE HERE
BOOST CONTROL HELP CLICK HERE
CHECKLIST CLICK HERE

For Members with vehicles with PassLock or PassKey Security issues. PM for details on "Fixing" this system.
Offline   Quick reply to this message
Old 03-16-2008, 01:37 AM   #10 (permalink)
jmay2174
Diesel Specialist
 
Join Date: May 2005
Posts: 565
iTrader Score: 0 reviews

Quote:
Originally Posted by vxdude21a View Post
when I crawl under and watch it when its running it sure seems like its out of round or off center, I mean you can see it as its spinning that its not true. is there anything i can do about it ??.

I get a little more vibration at idle then i used to but I don't seem to notice any strong vibration when running.

"Some engines may not have not have a dowel pin to index the flywheel to the crankshaft. On these engines, it is possible to install the flywheel improperly (rotated from the proper position). If the flywheel is installed rotated from the proper position, engine balance will be adversely affected.

If no dowel pin is used, align the close-spaced hole in the flywheel with the untapped hole in the crankshaft."

Ref: 1991 gm Trucks R/V,P Models Service Manual.

Joel
Offline   Quick reply to this message
Sponsored Links
Advertisement
 
Sponsored Links
Advertisement
 
Closed Thread

Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
83 GMC 700r4 clutch-type or open-torque converter dieselfumes1983 6.2L Diesel Engine 3 10-28-2008 07:11 PM
Recommendations for 700R4 torque converter arveetek 6.2L Diesel Engine 20 08-22-2008 09:15 AM
6.2 700R4 torque converter Dieselnate 6.2L Diesel Engine 4 02-26-2008 01:28 PM
700r4 Torque Converter blazerswampthing 4L80/85E Transmissions. 6L90 Transmission 1 03-05-2007 11:57 AM


All times are GMT -4. The time now is 08:55 AM.


Shoutbox provided by vBShout v6.2.1 (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
© AutoGuide

SEO by vBSEO 3.6.0