motor mounts, delrin bushings in......vibration still
#1
Rennlist Member
Thread Starter
motor mounts, delrin bushings in......vibration still
I just finished installing (GTS) new motor mounts and delrin strg rack bushings (thx Roger). All went per Dwaynes epic write up with the usual challenges with cross member but its all done, bolts torqued to spec etc.
The engine rocks as it should when blip the throttle so went for a installation lap (F1 speak).
The steering is tight nice change and the car is smooth up to 5k rpm then starts to vibrate.
Its very pronounced through the clutch pedal and gear shift lever and when is upshifted the clutch pedal doesn't return to full position.......like the throw out lever is sticking which indicates the TO bearing issue???
It did same prior to the work.
Appreciate your inputs
The engine rocks as it should when blip the throttle so went for a installation lap (F1 speak).
The steering is tight nice change and the car is smooth up to 5k rpm then starts to vibrate.
Its very pronounced through the clutch pedal and gear shift lever and when is upshifted the clutch pedal doesn't return to full position.......like the throw out lever is sticking which indicates the TO bearing issue???
It did same prior to the work.
Appreciate your inputs
#4
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If the vibration is there when you press the clutch, then the problem is in the engine/ clutch area. I would look at the pressure plate. I have installed it wrong and pushed the locating pins in. Then it wasn't centered on the flywheel. Not saying it is that, but I can't see anything else that would cause that vibration when the clutch is pressed.
#5
Malcolm,
Must be a Calgary thing. I am fighting the same issue. I think I have mine narrowed to the front bearing on the torque tube having migrated rearwards.
Have a look at mine thread. Maybe some hints on things I have tried. I too have a vibration albeit at a lower RPM. If I put in my clutch and put the car into gear (to ensure the drive shaft has stopped), there is no vibration.
How you been keeping anyways? It's been a while
Glenn
Must be a Calgary thing. I am fighting the same issue. I think I have mine narrowed to the front bearing on the torque tube having migrated rearwards.
Have a look at mine thread. Maybe some hints on things I have tried. I too have a vibration albeit at a lower RPM. If I put in my clutch and put the car into gear (to ensure the drive shaft has stopped), there is no vibration.
How you been keeping anyways? It's been a while
Glenn
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#10
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I thought torque tube first as well. But the vibration is there clutch in or out. I assume same vibration regardless of gear. That would preclude the toque tube bearings from being suspect. Dropping into neutral while moving and pressing the clutch and still having the vibration would eliminate the torque tube as a suspect, no? Also while stationary, while in gear with the clutch depressed if the vibration is still there that would certainly eliminate the toque tube from the equation, as the torque tube would not be spinning at all.
#11
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Thread Starter
........... I think I have mine narrowed to the front bearing on the torque tube having migrated rearwards.
Have a look at mine thread. Maybe some hints on things I have tried. I too have a vibration albeit at a lower RPM. If I put in my clutch and put the car into gear (to ensure the drive shaft has stopped), there is no vibration.
How you been keeping anyways? It's been a while............
Have a look at mine thread. Maybe some hints on things I have tried. I too have a vibration albeit at a lower RPM. If I put in my clutch and put the car into gear (to ensure the drive shaft has stopped), there is no vibration.
How you been keeping anyways? It's been a while............
The car is smooth still or in motion up until higher rpm when the bad vibes start although I don't rev it that high sitting in the garage
I'll try a few suggestions on this and your thread then report.
Doing well thx.......very busy year
#12
Pro
Seems to me that you would rather the "problem" was mysteriously complicated and ultra technical just so you can brag about how much hi-tech machinery and gadgets you can involve to solve your "problem" rather than start with simple basic deductions and work from there.
As I used to tell my field techs: "before you pull out the crankshaft, check you have fuel in the tank". Yeah. Sounds trite, but you wouldn't believe the number of times ...
Finally, how about some courtesy to respondents? Apart from the time/effort it takes to respond, remember they have acquired their knowledge base through years of hard work and disappointment.
If you want to continue to hear from these folk then you should have the manners to thank them for their contribution.
John C.
Engineer and 14 years ownership.
#13
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Last edited by SeanR; 10-14-2014 at 11:33 AM.
#14
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Thread Starter
What is it about you lot?
Seems to me that you would rather the "problem" was mysteriously complicated and ultra technical just so you can brag about how much hi-tech machinery and gadgets you can involve to solve your "problem" rather than start with simple basic deductions and work from there.
As I used to tell my field techs: "before you pull out the crankshaft, check you have fuel in the tank". Yeah. Sounds trite, but you wouldn't believe the number of times ...
Finally, how about some courtesy to respondents? Apart from the time/effort it takes to respond, remember they have acquired their knowledge base through years of hard work and disappointment.
If you want to continue to hear from these folk then you should have the manners to thank them for their contribution.
John C.
Engineer and 14 years ownership.
Seems to me that you would rather the "problem" was mysteriously complicated and ultra technical just so you can brag about how much hi-tech machinery and gadgets you can involve to solve your "problem" rather than start with simple basic deductions and work from there.
As I used to tell my field techs: "before you pull out the crankshaft, check you have fuel in the tank". Yeah. Sounds trite, but you wouldn't believe the number of times ...
Finally, how about some courtesy to respondents? Apart from the time/effort it takes to respond, remember they have acquired their knowledge base through years of hard work and disappointment.
If you want to continue to hear from these folk then you should have the manners to thank them for their contribution.
John C.
Engineer and 14 years ownership.
On topic; the previous owner had clutch work done but wasn't specific what was fixed/replaced. In my ownership the the slave and master cyl. and flex hose have been replaced so I'll drop the bell housing cover and have a peek......easy to do with a x pipe.
I also hear a noise at idle that goes away with light touch on the clutch pedal.....as if its taking up slack again as if the TO brg is sticking on the shaft.
Given work is not too hectic Ill get her out for a another test drive this aft.
#15
Rennlist Member
Just replaced the throwout bearing (and WIWAIT the rest of the clutch) in my work 4WD, which was doing exactly the same thing. Sounded like I had a cheeping bird in the clutch, which was driving me nuts. The bearing was toast, and once replaced was not only quiet again, but a small vibration had gone as well.