Small problem after installing a Yank SS3600. The install went well. Everything lined up bolted back together. I added 1 quart of ATF to the converter before installing. After everything was buttoned up it took just shy of another quart. Tried moving off of ramps, put in reverse, the rpm's rise from 950 to 1350 for a couple seconds then comes back down to 950. The car won't move. Acts like it's low of ATF. I releveled and rechecked 2 more time and the tranny is full. Is it possible for everything to bolt together and the converter not be engaged with the tranny pump? Gonna pull the rear axle shafts and see if the differential output shafts spin. Anything I might have overlooked. This is the third time I've changed a converter in a C5 but the first time for any trouble.

 

dude- your in deep do-do.sounds like the converter wasn't all the way in.when you put it in,you should have felt it drop down 3 times and the snout of the converter should have been 1/4 to 1/2 inch below the case. if what i think happened,happened.you need to replace the front pump now because the 2 tangs that spin the pump are broken.
DON'T PULL THE AXLE SHAFTS.you won't be accomplishing anything.
FYI,to put the converter in you have to spin and push it as you are sliding it in.it can feel like it is in when it is not.that's why you have to pay attention to the amount of times the converter drops and the depth of the snout.

 

interesting to hear what you find

CAUTION: when you disconnect the half shafts to see if the output shafts turn, remember that you will NOT have any brakes to apply when shifting - so I suspect that you will have to start the car in neutral, drop it into drive, see if the output shafts turn, then put it into neutral and shut the car off.

Also, I recently installed a Yank SS3200 t/c - I haven't driven it yet (winter and still modding), but I was told that if you do NOT get the t/c lined up and correctly fitted into the tranny, that you will break the pump inside the tranny when you reinstall things. You didn't say there was any unusual noise, so I'm guessing (keeping my fingers crossed for you) that you do have it correctly aligned.

 

That sucks.... If you have done the change before you know what you are doing. Is the linkage hooked up and all connector on the top odf the tranny? I would assume so because you had a change in rpm putting it in reverse. I would run the car through the gears several times with the engine on to make sure all the tranny has fluid everywhere and then check the level again.

Good luck

 

My luck...Just damn.

 

no matter what you're going to have to pull the unit.it is possible you can still be low on fluid,but the car should still move somewhat.just make sure that you get the tangs out before they do even more damage.

 

Just talked with Mike at Yank and he agrees that it is either low on fluid or the tangs broke off. He suggested removing the trans line to the cooler , start it up and see if teh fluid is being pumped out. I'll try that but it looks like I'll put in a new front pump.

 

good luck. i hope you are lucky

 

Just remembered something I did when I installed my ss3200 t/c that might help w/ your "reinstall" - I had been told about getting the t/c onto the pump, but I felt like it wasn't going on, or I was having problems getting it lined up - that and I was scared speechless that I might screw something up -

So, I took a flashlight and looked into the tranny where the t/c is supposed to engage the tangs on the tranny pump, and I made careful note of where the tangs or notches were in the tranny pump. I think I actually turned the tranny shaft so that one of the notches on the tranny pump was straight up and down, and I made a reference mark w/ a black marker on the top edge of the tranny to indicate where the notch was on the pump.

Then I looked at the t/c and made sure that I had one of the tangs on the t/c straight up and down when I slid the t/c onto the tranny shaft. Actually, I also made a mark w/ a black marker on the t/c to indicate the edge of the tang that was straight up and down.

After a few tries and lots of crossing my fingers and praying, things slid together. I never did get the feel of the three steps dropping down as was previously mentioned in this thread.

Maybe contact Gene's Karshop to see if he has a pump - I'm guessing they might be a RARE item on the secondary market.

Best of luck, hope this helps.

 

Thanks for the sound advice! I sent an email to Gene and he doesn't have tranny parts, just complete trannys. I also sent Rodney at RPM Transmissions an email. He called me this morning and said it probably just broke the tangs off the hub. He has the and would send one to me for FREE!!! He does want me to check the pump housing and internals. I have to call him when I get the tranny back out and he will guide me thru the pump removal and inspection by phone. What a guy! What a lesson I have learned.

 

you're going to need 2 little slide hammers to pop the pump out.

 

Yep had this happen to a trans I built, the guy who installed the trans didn't seat the converter correctly.. I ended up pulling the trans myself repairing the pump and re-installing it myself because of this... Of course this was for a friend anyone else the situation would have been handeld differently since it was not my fault that the person who installed it damaged the trans.

Oh...To top it off there was a Tick noise described to be an exhaust leak type noise and they kept driving it and put a few miles on it before CLANK the pump rotor cracked in half and one of the slides gouged its way into the aliuminum pump housing..

I wonder how the rebuilders who sell over the internet handel these kind of problems... Failure due to install, seating the pump, low fluid, ect.. I could assume a few ways of handeling it..

I just handle things/issues case by case when they arrise... one day at a time type of thing..

-=Rick

 

I understand your point but let me make sure you understand that the transmission is my stock unit. This is my car, I did the work myself and take full responsibility for my bonehead mistake. Rodney is just offering some appreciated help and I will gladly take him up on his offer probably Monday morning.

 

Right... I understand this was your stock trans ect.. just sharing a personal experiance and was thinking/wondering how a builders who sell them over the net deal with these issues...

-=Rick

 

By the way, I was born and raised in Oak Park. Not too far from Downers Grove.

 

One other thought this evening - When you get it up and running, you might want to change the tranny fluid and the tranny filter - tough to say whether or not you ended up w/ any metal shavings or metal pieces floating arouund in the tranny fluid when hte ears/tangs broke. Don't want these particles messing up what's left of the tranny.

just a thought.

Keep us posted on your progress.

 

I'm going to get started tomorrow after work. I'll pull the rear cradle back out, drain the tranny ( I have a B&M extra deep pan with a drain plug, holds n extra 1 1/2 to 2 quarts), then remove the pan and filter so I'll check for any metal deposits at that time. Hopefully it only broke the tangs and no additional damage. I didn't run it very long and no strange noises were heard but then again I had the exhaust system off when I started it except for the headers.