C6 Issues???????????? - Great Lakes 4x4. The largest offroad forum in the Midwest

Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Ford Tech
GL4x4 Live! GL4x4 Casino

greatlakes4x4.com is the premier Great Lakes 4x4 Forum on the internet. Registered Users do not see the above ads.
Search
Reply
 
Thread Tools Search this Thread
Old September 6th, 2011, 09:04 PM   #1
bigblockford79
Big Block Ranger
 
bigblockford79's Avatar
 
Join Date: 05-11-08
Location: Hamilton, MI
Posts: 2,745
iTrader: (24)
Mentioned: 0 Post(s)
Default C6 Issues????????????

1979 BB C6 Trans with about 10 miles on an upgrade/rebuild, reverse manual VB, Super servo, built TC. Using Dex/Merc Fluid

Issue

- From the very first start up on this transmission I have had to give a little throttle to get any line pressure (gauge verified), I kinda wrote this off as a side effect of the higher stall converter.

- First couple runs with it were the same as the initial startup, after you get pressure after starting the engine for the first time that day it works perfect the rest of the day. After the second time I had it out (everything worked great on/off the trailer and out on the trail) I parked it at my house and it sat for 1-2 weeks. I went to move it back to the garage to do some tweaks to get ready for the club comp, fired it up shifted to reverse and got nothing. Revved it a little and still nothing, tried first gear and it moved ok. Pulled it backwards out of parking spot, fired it back up and went forward about 20 feet in first gear, tried reverse again and it worked like normal.

At the club comp the trans worked great, same as it has since I put it in. Beat the crap out of the truck and had lots of fun with absolutely no issues. Monday afternoon I backed it off the trailer, screwed around in the yard a little and it still acted normal. Went back out after sundown (10pm) and tried to move it to its parking spot, it wouldn't move AT ALL. No first or reverse, it didn't even try to move.

I did have a cooler line come off during the club comp, it was noticed quickly and the engine was shut down. Fixed the line, added 4 quarts of fluid then fired it up to check fluid level, it was right at the full line while idling in park while warm. I haven't re-checked the fluid level yet but since it was checked sunday PM, I assume it is good but it will be the first thing I check tomorrow. Just wondering if anyone has any other ideas of what I should look into.

Thanks
__________________
If you can read this, thank a teacher. If you can read it while pooping, thank Bill Gates!

"A girls butt hole is like a 9 volt battery. You know its wrong, but eventually you put your tongue on it."
bigblockford79 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old September 6th, 2011, 09:13 PM   #2
deerebowtie
Unchained
 
deerebowtie's Avatar
 
Join Date: 05-04-09
Location: SE Michigan
Posts: 1,764
iTrader: (24)
Mentioned: 0 Post(s)
Default

sounds like the pump has issues if you're not building pressure without making it spin faster. once you have pressure it works fine?
deerebowtie is offline   Reply With Quote
Old September 6th, 2011, 09:14 PM   #3
bigblockford79
Big Block Ranger
 
bigblockford79's Avatar
 
Join Date: 05-11-08
Location: Hamilton, MI
Posts: 2,745
iTrader: (24)
Mentioned: 0 Post(s)
Default

Quote:
Originally Posted by deerebowtie View Post
sounds like the pump has issues if you're not building pressure without making it spin faster. once you have pressure it works fine it sounds like?
Yes, once I get pressure it works flawlessly. I had a suspicion it was the pump but want to make sure I don't miss a small, easy fix before pulling the trans out.
__________________
If you can read this, thank a teacher. If you can read it while pooping, thank Bill Gates!

"A girls butt hole is like a 9 volt battery. You know its wrong, but eventually you put your tongue on it."
bigblockford79 is offline   Reply With Quote
Old September 28th, 2011, 07:11 PM   #4
Ford rules
Senior Member
 
Ford rules's Avatar
 
Join Date: 02-16-10
Location: Pinckney MI
Posts: 574
iTrader: (2)
Mentioned: 0 Post(s)
Default

I would geuss the pump is going also my brothers cummins just did the same thing and the pump was bad.
Ford rules is offline   Reply With Quote
Old September 28th, 2011, 10:45 PM   #5
bigblockford79
Big Block Ranger
 
bigblockford79's Avatar
 
Join Date: 05-11-08
Location: Hamilton, MI
Posts: 2,745
iTrader: (24)
Mentioned: 0 Post(s)
Default

It ended up being a little low on fluid. Which I didn't expect since it worked for 3 hours sunday evening, and about 15 minutes on Monday afternoon. It wasn't until Monday evening that it caused issues. I plan on checking the converter this winter for any noticeable signs of damage. The last time out it seemed to be slipping the convert A LOT, which make a boat load of excess heat.

I don't think there is anything wrong with the pump, I have plenty of pressure in all gears verified by a gauge.
__________________
If you can read this, thank a teacher. If you can read it while pooping, thank Bill Gates!

"A girls butt hole is like a 9 volt battery. You know its wrong, but eventually you put your tongue on it."
bigblockford79 is offline   Reply With Quote
Old September 29th, 2011, 08:38 PM   #6
Fullsize4life
Kicking Cancers ASS
 
Fullsize4life's Avatar
 
Join Date: 07-25-06
Location: Hart, Mi (next to silver lake)
Posts: 18,754
iTrader: (7)
Mentioned: 0 Post(s)
Default

What kind of converter is it|? If it is a street type converter im sure your problem is in it. A car type street converter is not made to handle the stress of a 4x4. It also sounds like it has some issues right from the get go. Also check some hard parts, mine broke a part ( cant remember right off hand what it was) and it would work fine is reverse but had to almost red line the motor to get it to in gauge.
Fullsize4life is offline   Reply With Quote
Old September 29th, 2011, 09:52 PM   #7
bigblockford79
Big Block Ranger
 
bigblockford79's Avatar
 
Join Date: 05-11-08
Location: Hamilton, MI
Posts: 2,745
iTrader: (24)
Mentioned: 0 Post(s)
Default

Quote:
Originally Posted by Fullsize4life View Post
What kind of converter is it|? If it is a street type converter im sure your problem is in it. A car type street converter is not made to handle the stress of a 4x4. It also sounds like it has some issues right from the get go. Also check some hard parts, mine broke a part ( cant remember right off hand what it was) and it would work fine is reverse but had to almost red line the motor to get it to in gauge.
The converter is a custom hand built unit from Broader Performance, it is fully welded (fins), balanced, has aluminum caps instead of plastic, and is approx. 1600 stall. It is his heavy-duty version which he recommended for my application. So, unless there is an issue with the converter internals it should be up to the task.

As far as internal transmission breakage, I don't believe there is any. The last time out on 9-17 there were no issues with the shifting, and no clutch slipping. The only complaint is how much effort it took to climb a couple of the boulders in the long crawl, that I didn't notice when we were up there for the club comp. I was running a higher tire pressure on the 17th and believe that to be a part of the issue, but I guess I will do some testing and figure it out.
__________________
If you can read this, thank a teacher. If you can read it while pooping, thank Bill Gates!

"A girls butt hole is like a 9 volt battery. You know its wrong, but eventually you put your tongue on it."
bigblockford79 is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Ford Tech

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -5. The time now is 01:01 PM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Page generated in 0.19757 seconds with 41 queries