Toolbox Test #15January 3, 2020
Test your knowledge every month with Ray’s Toolbox Tests. Simply answer the questions, hit the Submit button, and find out how well you scored. If the full text does not appear in the Question frames, just drag the bottom right-hand corner.
I disagree with question 1 on test 15. If the plate was rusted to the flywheel, the clutch would still feel the same as if it was working. The fingers on the pressure plate would give you a feel like it was working.
If the throw-out bearing was stuck in the applied position, it would feel like nothing was there, so I will stand by my answer of a stuck throw-out bearing.
I agree with you 100% and in retrospect, I should not have made the throw-out bearing one of the choices, but you are correct.
I try not to make the test too verbose. My message to the audience was taught to me many years ago at the GM Training Center.
It is (was) very common for a new vehicle with a manual transmission (either at the factory or dealership lot) to have the disc, pressure pate, etc. rust together since it was not driven enough for a protective haze, that would normally occur, to take place. The remedy was to put the transmission in a high gear with the engine off and pull it a few feet to break things loose. That was the point I was trying to drive home, by saying that the clutch was installed and the tractor sat. But to your point, the throw out-bearing can respond the same way.
The data at the time (early to mid-1980s) from GM did not support that but it means little.
When I was in college I worked at a Buick dealership in town. We had a Datsun 210 that came in on trade with a worn clutch (it was hydraulic) and I was tasked to install a new one. I did that and only drove the car down the street and parked it in the sales lot. It sat for months and then (luck would have it) someone wanted to test drive it. The clutch pedal was completely dead as if the hydraulic line blew. Since I did the job it was given to me to look after. I got my buddy and the shop truck, dragged it about 50 feet, and all was well. The car was sold and it never had a clutch issue.
In my “other life” I write for car magazines and the stuck together clutch or throw-out bearing problem which you stated, is very common with a multi-year restoration.
Thank you so much for taking the test and for contacting me to share your wisdom and insight. Please keep an “eagle’s eye” on me to make sure that I am on track!
I will use your letter in my next podcast, the week of 4/27 (Great engine in both the Chevy and Ford camps!).
Thanks again and have a blessed and safe day,