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Username Post: drivetrain problem        (Topic#283362)
sixty5short 
"16th Year" Gold Supporting Member
Posts: 1593
sixty5short
Loc: NC
Reg: 05-20-02
06-29-12 12:53 PM - Post#2242673    

Hey gang, I just picked up my first vette - a 1998 6-speed, just got it last night. It's a high mileage car (179K) but it looks/runs/sounds great. Had a blast cruising around last night, but today it's doing something nasty it hasn't done before. This sure didn't happen on my test drive! Figures.

This is hard to describe, so bear with me. It happens on take off from a stop, about 1 out of every 4 or 5 times. No apparent rhyme or reason as to when it will happen.

In first gear, ease out on the clutch with little or no gas applied. the most gentle takeoff you can imagine. Then it happens- this fairly severe vibration/shudder, almost like clutch shudder you get from fluid on the disk but not as "distinct" as that. Not sure which end it is coming from.

Sometimes when the vibration starts I'll push the clutch back in, knock it into neutral and let the clutch back out- and the noise/vibration continues for a few seconds with it in neutral and the clutch out.

My guess is the release bearing or clutch is messed up. Hate to get into that project without knowing for sure what is going on.

Sure would appreciate some insights if anyone has them to share.

- "sixty5short"

'65 C10 Shortbed Fleetside
'60 Impala 2 dr
'57 210 2dr Sedan


 




hotwheels57 
Senior Member
Posts: 8602
hotwheels57
Reg: 11-20-02
06-29-12 02:01 PM - Post#2242696    
    In response to sixty5short

WOW, if the original clutch/slave assembly is still in your car, it's certainly gave the previous owner plenty of miles. Most C5 Corvette clutches need attention long before they reach that many miles.

The torque tube bushings might be deteriorated. Some owners use BMW bushings which are similar. I believe the aftermarket may have some upgraded bushings as well. It will require the entire torque tube assembly to be removed.

Although your symptoms don't coincide with the usual dirty clutch reservoir fluid issues, you might start with something simple and DIY. Check the clutch reservoir. Chances are the fluid is very dirty unless it's been regularly changed.

Check out this link. "Ranger" is well known for his procedure in changing out contaminated clutch fluid which causes common clutch woes.

http://www.rangeracceleration.com/Clutch_Care.html

That might help the symptoms. Changing the transmission/transaxle fluids would also be a good idea if you're not certain of the previous owners preventative maintenance practices.

Karma is the universal equalizer. The Ignore User feature comes in a close second.


Edited by hotwheels57 on 06-29-12 02:10 PM. Reason for edit: No reason given.

 
TAT_2 
"18th Year" Silver Supporting Member, and Official CT Grim Reaper
Posts: 36064

Age: 66
Loc: "UNDER THE BOARDWALK"
Reg: 10-29-00
06-29-12 03:49 PM - Post#2242734    
    In response to sixty5short

http://www.corvsport.com/Corvette/C5/1998/C5_1 998_...

HERES THE WAVE !!!

09 PONTIAC- VIBE
08 PONTIAC- G6
93 VETTE - 40TH ANIV RUBY RED LT1/6SPD/RAG TOP
NEXT ?


*****
PREVIOUS VETTE'S 58,68,70,76,78,85,90
*****


Blessed are the cross-eyed, for they will see God twice


 
sixty5short 
"16th Year" Gold Supporting Member
Posts: 1593
sixty5short
Loc: NC
Reg: 05-20-02
06-29-12 07:03 PM - Post#2242791    
    In response to TAT_2

Thanks hotwheels. Yeah I have no idea if this the original clutch or not. Sucks not knowing the history of your car. I am planning on doing the Ranger method tomorrow. I sold my 2005 GTO to buy this vette, so I've been around that block before.

Hey TAT... I haven't been on the board in a while- your post count is crazy high now! Anyway thanks for the link and the Vette wave.

PS I may have bigger problems than I thought. Went to move the car into the shop and discovered major oil on the floor. Great.

The car is lowered and I haven't been able to get it on the lift just yet. But I bet I've blown a seal (rear main? oil Pan?) in the first 24 hours of owning this car. Oh boy!!! With the amount of oil this thing is dripping, it could definitely explain the chattery clutch.

Didn't think I was buying a project car, but it may very well turn into one.

- "sixty5short"

'65 C10 Shortbed Fleetside
'60 Impala 2 dr
'57 210 2dr Sedan


 
TAT_2 
"18th Year" Silver Supporting Member, and Official CT Grim Reaper
Posts: 36064

Age: 66
Loc: "UNDER THE BOARDWALK"
Reg: 10-29-00
06-29-12 09:41 PM - Post#2242831    
    In response to sixty5short

LET US KNOW WHAT YA FIND,CHEK THAT BATT ACID ISSUE ALSO.


09 PONTIAC- VIBE
08 PONTIAC- G6
93 VETTE - 40TH ANIV RUBY RED LT1/6SPD/RAG TOP
NEXT ?


*****
PREVIOUS VETTE'S 58,68,70,76,78,85,90
*****


Blessed are the cross-eyed, for they will see God twice


 
sixty5short 
"16th Year" Gold Supporting Member
Posts: 1593
sixty5short
Loc: NC
Reg: 05-20-02
06-30-12 05:31 PM - Post#2243083    
    In response to TAT_2

OK, one problem identified. It wasn't oil, it was really dirty power steering fluid. The high pressure line from the pump to the rack is blown.

Not sure exactly what is involved to replace- the connection at the pump is quite well hidden by the PS pulley.

Not sure if this is related to the drivetrain problem yet.

- "sixty5short"

'65 C10 Shortbed Fleetside
'60 Impala 2 dr
'57 210 2dr Sedan


 
wagonmaster 
Senior Member
Posts: 8910
wagonmaster
Age: 70
Loc: Loganville, Ga.
Reg: 04-28-00
07-01-12 04:31 AM - Post#2243210    
    In response to sixty5short

Let us know....

Hey T @!


In Memory of Mike McVeigh- The "Mad Spring Wacker" He roams the Forums of CT forever in our hearts and minds!

http://www.picturetrail.com/wagonmaster55

Joe


 
hotwheels57 
Senior Member
Posts: 8602
hotwheels57
Reg: 11-20-02
07-01-12 08:37 AM - Post#2243274    
    In response to sixty5short

Good luck with it. You'll probably go through a lot of these irritations until you get it all sorted out...

Karma is the universal equalizer. The Ignore User feature comes in a close second.


Edited by hotwheels57 on 07-01-12 08:49 AM. Reason for edit: No reason given.

 
sixty5short 
"16th Year" Gold Supporting Member
Posts: 1593
sixty5short
Loc: NC
Reg: 05-20-02
07-03-12 03:33 AM - Post#2243875    
    In response to hotwheels57

OK I got the line replaced- got lucky and was able to break both the fittings loose without taking the PS pump off the car. Still having the drivetrain problem but not as frequently/severely as before. Still unsure of any cause/relate there.

- "sixty5short"

'65 C10 Shortbed Fleetside
'60 Impala 2 dr
'57 210 2dr Sedan


 
65_Impala 
Very Senior Member
Posts: 4305

Reg: 12-29-02
07-12-12 08:45 PM - Post#2247626    
    In response to sixty5short

Sure sounds like the clutch is doing something funky. Maybe the pressure plate has a broken piece. Pull the inspection cover off and take a look at it, preferrably with someone else to operate the clutch at the same time.

The couplers usually are usually reported as more of a rpm related vibration and not that severe. I would not recommend using the BWM couplers if you get into it. They are softer and just don't hold-up as well. Get GM replacements.

I was going to say that you can reach the PS line pretty easy but you already got that one figured out. Mine was leaking pretty badly too and I have some parts here so I stuck the extra one on and it leaked a little as well. It seems to seep right through the rubber hose.



 
elcaminokevin 
Forum Newbie
Posts: 2

Loc: Mississippi
Reg: 05-18-13
05-18-13 11:51 PM - Post#2346892    
    In response to sixty5short

In older cars with standard tranny, they had a Bronze bushing in the end of engine crankshaft, new LS engines have a bearing there, when bearing goes out it cause's that noise, my '99 had the same issue with the noise then eventually stopped then the vibration started, that was my problem, Bearing had gone out, the bearing hold the very front tip of the Shaft that goes to the tranny. most call it a pilot bearing. Hope this helps.

Kevin Edwards


 




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