Slipping Clutch/ Contamination Issue

mark4g63t · 06-07-2013

Hey guys, so I've been battling a slipping clutch because of what I suspect to be caused by contamination. I've dropped my transmission 4 times now and have replaced my rear main seal and its housing, oil pan gasket, and axle seals. Had the flywheel resurfaced to .610 and got a new 2600 pressure plate, because I thought mine was a 2100, and a new sbc-tz disc. Somehow I believe motor oil is getting through my bell housing and onto my clutch. From the pics below it looks almost as though it is coming from the headgasket, oil galley plug or its gear oil and coming from my input shaft (fwd).
Any thoughts?
Thanks, Mark

mark4g63t · 06-07-2013

lol just realized how bad these pics are..Going to hopefully pull the tranny tonight if I can get one of my buddies to help. Will update pics once that happens.

**goodhart** · 06-08-2013

Small crack in the case maybe? What does the contaminating fluid smell like? Once that disk gets oil or trans fluid on it, its trashed imo. Time for a new disk once you find the source

mark4g63t · 06-08-2013

I put some uv dye in the oil, trans was still full of gear fluid. Gotta find a blacklight flashlight tomorrow then i'll start searching. hopefully something simple.

mark4g63t · 06-08-2013

Pulled the trans, found what seems to be gear oil. Judging by the splat pattern in the pics of the disc and PP it looks like it was leaking towards the block. let me know what you think I should do/ look for now.

**goodhart** · 06-09-2013

Hard to tell what's going on in those pics.

mark4g63t · 06-09-2013

Mostly showing the splash pattern starting in the center working its way outward

mark4g63t · 06-09-2013

Wiped the input shaft off to see if anything will show up in the morning. Block seemed to be surprisingly dry.

awd laser · 06-09-2013

Check slave cylinder?

awd laser · 06-09-2013

Might not be the slave but just throwing out potential suspects.

mark4g63t · 06-09-2013

Checked and have replaced that as well. Definitely not brake fluid. Almost positive its gear fluid. It has a very faint smell to it so its hard to distinguish between gear fluid or oil.

mark4g63t · 06-09-2013

Anyone know how to replace the input shaft seal and willing to show a fellow dsmer? Would Gosh be able to tell if the bell housing is cracked? Need to make 100% sure its not cracked first.

mark4g63t · 06-10-2013

Got the input shaft seal replaced by Mark. Put the flywheel and clutch back on last night now I just have to lift the tranny in tonight when I get off work. Also wasn't going to take a chance of oil leaking out the galley plug so I jb welded it closed. Here are some more pics. As Mark was taking the gears out a crush washer fell out and reveled a nice size gash in the case. Glad it didn't cause more damage.
First pic is the leak shown by the UV dye on the input shaft
Second and third are the seal and location of seal
Fourth is the gash left by the random crush washer

Alpha D · 06-10-2013

ur linkage adjusted properly?

mark4g63t · 06-10-2013

Clutch master was adjusted properly, yes, if thats what you meant (2g). It was a leaking input shaft seal that was putting gear oil onto my disc and making it slip once boost started to hit. Should be fixed now. Only time will tell tho

mark4g63t · 06-11-2013

Got the transmission in last night, will have to finish putting her back together tonight when I get off work and hopefully start it up. I'm getting anxious to be able to boost and hopefully this solves the slipping clutch issue that has stopped me from doing that for almost a year.
Here's a pic of the trans installed. That's as far as I could get before my body shut down for the night.

mark4g63t · 06-12-2013

Got it all back together beside the fact that the coolant sensors got ripped out of the connectors right at the base. Depinned them this morning but was unable to finish due to the power going out. Decided to lengthen the wires a little bit to make sure they don't get ripped out again and to hide them a bit more than previously. Hopefully tonight it will stop raining so I can take her for a much needed cruise.

**goodhart** · 06-13-2013

So did you put the oil soaked disk back in there?

1QUICK4 · 06-13-2013

I hope for his sake he didn't

mark4g63t · 06-13-2013

Lol No way! That thing is garbage. Put a street disc in there I had laying around. Felt pretty good this morning. 15 psi hoping to turn it up tonight to at least 18. We'll see how that goes however. No leaks thus far. Going to check fluid levels and clean the garage floor tonight to triple check for any leaks.