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FF/REW fix ctf-8282,9191,1000 RXA-581, NOT DIY

Recently just purchased a 9191, I’m a newbie to the CT-F9191 decks.
I’m learning as I go , this forum offers tons of tips. Maybe someone on this thread can answer that question for you more accurately than me .
 
New to this forum and I appreciate that the initiator of this great thread is unavailable. However, wondering if anyone else can offer advice. I'm trying to restore a CT-F9191 I've owned since 1976. Like others, it will not high-speed wind or rewind. I've removed and diss-assembled the clutch and it does not have a cracked spindle and rotates freely on its shaft when turned manually. Selecting fast wind or rewind does activate the lever and moves the clutch to the motor shaft (which does spin) and to the appropriate cassette drive spindle but the clutch itself does not rotate and hence neither do the cassette drive pulleys. I assume there's insufficient grip between the motor shaft and the clutch and whilst there are groves on the clutch and rubber on the motor drive shaft, I suspect they are too worn but can't be sure as I've never seen unused ones. I've attached photos of each and would appreciate any comments or ideas.

Many thanks
Fast Forward-Rewind motor drive shaft.jpgCT-F9191 Clutch.jpg
 
This thread is Mark's and is for those who need their clutch repaired. Best thing to do is start your own thread and someone will assist.
 
DAMMIT, I am STILL in the effing hospital, for December, and in January it will be hard enough just surviving at home.


edit: I never made it home. it's April 2024
 
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Mark
We know you’re still healing . We wish you all tye best this holiday season . We all know you’re going to beat this illness . Just get your much needed rest and don’t worry about anything else but getting better .
Our prayers are all with you ,
BernardZ.
 
Dear Mark,
I have since years a F9191 in the garage and decided now to have a look at it. Before putting my hands on it, I did a search on the net and found this thread. Really sad to hear that you are having health issues. Wish you a full recovering, soon!
Warm regards from Italy
Giovanni
 
New to this forum and I appreciate that the initiator of this great thread is unavailable. However, wondering if anyone else can offer advice. I'm trying to restore a CT-F9191 I've owned since 1976. Like others, it will not high-speed wind or rewind. I've removed and diss-assembled the clutch and it does not have a cracked spindle and rotates freely on its shaft when turned manually. Selecting fast wind or rewind does activate the lever and moves the clutch to the motor shaft (which does spin) and to the appropriate cassette drive spindle but the clutch itself does not rotate and hence neither do the cassette drive pulleys. I assume there's insufficient grip between the motor shaft and the clutch and whilst there are groves on the clutch and rubber on the motor drive shaft, I suspect they are too worn but can't be sure as I've never seen unused ones. I've attached photos of each and would appreciate any comments or ideas.

Many thanks
View attachment 3027826View attachment 3027809
That pulley rubber seems to be heavily worn out. If the clutch moves freely try to clean its touching surfaces with non-invasive chemicals, like soapy water and que-tips. Check the tire on the clutch if it is cracked, hard etc. If it is then you would need to source out replacement. There is great guy van-hurban on e-bay that stocks replacements for most of the vintage gear, try there. You should also give attention to the pulley rubber. In case you cannot find its replacement try to increase its diameter by applying a shrink tube over the existing rubber.
 
New to this forum and I appreciate that the initiator of this great thread is unavailable. However, wondering if anyone else can offer advice. I'm trying to restore a CT-F9191 I've owned since 1976. Like others, it will not high-speed wind or rewind. I've removed and diss-assembled the clutch and it does not have a cracked spindle and rotates freely on its shaft when turned manually. Selecting fast wind or rewind does activate the lever and moves the clutch to the motor shaft (which does spin) and to the appropriate cassette drive spindle but the clutch itself does not rotate and hence neither do the cassette drive pulleys. I assume there's insufficient grip between the motor shaft and the clutch and whilst there are groves on the clutch and rubber on the motor drive shaft, I suspect they are too worn but can't be sure as I've never seen unused ones. I've attached photos of each and would appreciate any comments or ideas.

Many thanks
View attachment 3027826View attachment 3027809
For the pulley
 
Maybe I'm not able to get why... but... why do not just put a turn of strong adhesive tape around the crack? It would be thinner and lighter than the brass tube. Besides it would stay on firmly and keep the two parts strongly together. It would not come off easily because it would be subject to a force that's perpendicular to the axis of the idler wheel.
 
Oh man, groan... I'm in no shape to argue / defend /explain / teach this.
They are an interference fit, look up the mechanical engineering definition.
there is no gap, tape would be peeled off.

quick example: a 0.374 bearing is pressed off a 0.375 shaft with a hydraulic press
BUT
the replacement bearing is set on the garage's HOT wood stove
after the heat expands the replacement bearing a few thousandths,
a gloved hand can effortlessly place it.
 
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Hi Mark, sorry. I hope you recover soon! I'm facing this problem and I'm trying to find out an alternative solution cause I don't have a lathe. Only a saw and some jeweler files. I was wondering if I could buy, cut and file a small piece of brass pipe on amazon. I red a post in this thread of a user that has been able to fix the clutch with a brass ring without modifying the RNK-188.
 
Gee Mark, I’m really sorry to hear of your struggles and poor health. Thank you for all of your invaluable contributions over all these years. Everything I’ve been able to accomplish has been due in some part to information that you’ve made public somewhere here on AK. Here’s wishing you all the best going forward.
 
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