Forums :: Resources :: Features :: Photo Gallery :: Vintage Radio Shows :: Archives
Support This Site: Contributors :: Advertise


It is currently Oct Tue 15, 2019 12:55 am


All times are UTC [ DST ]





Post New Topic Post Reply  [ 22 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: Marantz cassette machine: need DRIVE belts
PostPosted: Feb Sun 24, 2019 5:40 pm 
Member
User avatar

Joined: Nov Fri 10, 2006 12:24 am
Posts: 2439
Location: Thornhill, Ontario, Canada
I've just acquired a Marantz 5010B cassette machine, great unit and in v.g. condition... except not used for over 10 years; the two drive belts had "liquefied"... a terrible mess! Now cleaned up.
I've downloaded the 5010B manual from Hi-Fi Engine... Belts are:
Flat motor belt: Ref. Designation: 850N, Part number: 4380264012
Round (?) TMS (?) belt: Ref. Designation: 851N, Part number: 4380264022
Are there any generic belts for this unit? e.g. the flywheel drive belt is about 1/4 inch wide and 13 inches at "operating stretch" (my term, measured with string!) and the TMS belt is likely round cross-section, about 5 1/2 ins ditto. I presume both un-stretched lengths would be about 10% less.
They both look like easy slip-on installations...
Now I need to find a supplier! Can anyone advise me from where to get either Marantz or generic drive belts? Thanks for all replies.
Cheers,
Roger
PS. Small belt driving the tape counter looks OK.


Attachments:
Cleaned off flat belt location.JPG
Cleaned off flat belt location.JPG [ 60.31 KiB | Viewed 1436 times ]
Front.JPG
Front.JPG [ 100.91 KiB | Viewed 1436 times ]
Liquified belt.JPG
Liquified belt.JPG [ 59.34 KiB | Viewed 1436 times ]
Liquified flat belt.JPG
Liquified flat belt.JPG [ 78.76 KiB | Viewed 1436 times ]
Small OK belt.JPG
Small OK belt.JPG [ 78.97 KiB | Viewed 1436 times ]

_________________
Roger Jones,
Thornhill, Ontario
Ontario Vintage Radio Assoc. http://www.ovra.ca
Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Feb Sun 24, 2019 6:07 pm 
Member
User avatar

Joined: Mar Tue 22, 2016 12:51 am
Posts: 325
Location: Creswell, OR.
Wow. That one turned to dinosaur goo, didn't it.

Back when I used to do a lot of mechanical audio component rehab, I would find most belts I needed at Newark (then was MCM). They still sell belts, but I the selection of inventory has reduced drastically over the past couple decades, for probably obvious reasons.

Give then a try.


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Feb Mon 25, 2019 4:51 pm 
Member

Joined: Mar Tue 03, 2009 11:12 pm
Posts: 1532
Location: Hutchinson KS
According to my PRB Crossline the belts needed are FRX11.3, SCX4.6, SCY5.2


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Feb Mon 25, 2019 8:37 pm 
Member
User avatar

Joined: Nov Fri 10, 2006 12:24 am
Posts: 2439
Location: Thornhill, Ontario, Canada
SteveT wrote:
According to my PRB Crossline the belts needed are FRX11.3, SCX4.6, SCY5.2
Thanks, added to my parts number list. Still looking...
Roger

_________________
Roger Jones,
Thornhill, Ontario
Ontario Vintage Radio Assoc. http://www.ovra.ca


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Feb Mon 25, 2019 9:17 pm 
Member
User avatar

Joined: Nov Fri 10, 2006 12:24 am
Posts: 2439
Location: Thornhill, Ontario, Canada
engineer wrote:
SteveT wrote:
According to my PRB Crossline the belts needed are FRX11.3, SCX4.6, SCY5.2
Thanks, added to my parts number list. Still looking...
Roger

PS. I've just inquired at:
A!-Electronic Parts
196 North Queen St.
Toronto, Ontario
M9C 4Y1
Tel: (416) 255-0343
Fax: (416) 255-4617
E-mail:
email@a1parts.com
No reply yet...

_________________
Roger Jones,
Thornhill, Ontario
Ontario Vintage Radio Assoc. http://www.ovra.ca


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Feb Mon 25, 2019 10:55 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 10084
Location: Toledo, Ohio
I have used this site in the past and have never had a problem

https://www.vintage-electronics.net/ama ... tkits.aspx

_________________
Jim
KE8GMW
------------------------
"AC volts and DC volts and little lamps and lities..."


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Feb Tue 26, 2019 7:32 am 
Member
User avatar

Joined: Oct Sun 18, 2009 5:38 am
Posts: 3739
Location: Tyler, Texas 75707-4212
I've got a 4025 that probably needs belts. Thanks for that link.

_________________
I'm right 97% of the time. Who cares about the other 4%!

-.-. --- .-.. -.. / ---.. ----- --...


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Feb Tue 26, 2019 4:51 pm 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 14785
Location: Fernandina Beach, FL
Jim Dutridge wrote:
I have used this site in the past and have never had a problem

https://www.vintage-electronics.net/ama ... tkits.aspx


I have used them as well, several times. Everything was good quality and fit correctly.

_________________
Don


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Feb Thu 28, 2019 12:46 am 
Member
User avatar

Joined: Nov Fri 10, 2006 12:24 am
Posts: 2439
Location: Thornhill, Ontario, Canada
Don Cavey wrote:
Jim Dutridge wrote:
I have used this site in the past and have never had a problem
https://www.vintage-electronics.net/ama ... tkits.aspx
I have used them as well, several times. Everything was good quality and fit correctly.
Jim and Don, may thanks for link. A1-Electronics (Toronto) says it has them, so does a friend-of-a-friend near Toronto.
Trying to optimize time, cost (I have to pay in 75 cent CAN$'s!), mailing and travel!
Cheers,
Roger

_________________
Roger Jones,
Thornhill, Ontario
Ontario Vintage Radio Assoc. http://www.ovra.ca


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Feb Thu 28, 2019 1:58 am 
Member
User avatar

Joined: Dec Wed 23, 2015 3:03 am
Posts: 511
Location: Northwest Indiana
Jim Dutridge wrote:
I have used this site in the past and have never had a problem

https://www.vintage-electronics.net/ama ... tkits.aspx


x2, have ordered many belts from Bob there for Marantz decks, good guy.

_________________
"It's amazing what you can accomplish when you throw safety out the window", Brent Butt


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Feb Thu 28, 2019 3:04 am 
Member
User avatar

Joined: Jan Fri 02, 2009 11:32 pm
Posts: 618
Location: Equinunk PA 18417
https://www.turntableneedles.com/Rubber_Drive_Belts-Tape_Decks_Turntables

I've purchased from this vendor twice and been happy with the product, speed of shipping, and price. Although the exact part numbers you mentioned do not come up on the site's search engine for Marantz, the numbers it does list are very close. 4380264012 comes up as 4380264010, and 4380264022 comes up as 4380264020. That's where I'd start, and verify carefully the description against your own length measurement. There is a huge assortment of belts, I'm sure there is something that will fit perfectly.

I have no affiliation with the site.

_________________
-Richard


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Mar Tue 05, 2019 4:21 pm 
Member
User avatar

Joined: Nov Fri 10, 2006 12:24 am
Posts: 2439
Location: Thornhill, Ontario, Canada
Quick update...
New belts installed (sourced by a good friend, Radiotech_7 on ARF... many thanks!)
Belts work, electronics good, but pinch wheel hardened and shiny... no tape grip, bad wow.
"These things are sent to try us."
Working on it...
Cheers,
Roger

_________________
Roger Jones,
Thornhill, Ontario
Ontario Vintage Radio Assoc. http://www.ovra.ca


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Mar Tue 05, 2019 4:26 pm 
Member

Joined: Aug Fri 12, 2016 1:49 am
Posts: 747
Location: Houston, TX
If you don't find a NOS one, there are a number of pinch roller and phono idler rebuild outfits on the web. There's still hope. :)


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Mar Tue 05, 2019 9:29 pm 
Member
User avatar

Joined: Dec Wed 23, 2015 3:03 am
Posts: 511
Location: Northwest Indiana
I have had good luck with Rubber Drive Cleaner / Restorer from Vintage-Electronics.net .

_________________
"It's amazing what you can accomplish when you throw safety out the window", Brent Butt


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Mar Tue 05, 2019 9:55 pm 
Member
User avatar

Joined: Nov Fri 10, 2006 12:24 am
Posts: 2439
Location: Thornhill, Ontario, Canada
tbone8 wrote:
I have had good luck with Rubber Drive Cleaner / Restorer from Vintage-Electronics.net .
Thanks. Have sent them a request.
Cheers,
Roger
EDIT: Got a reply... they don't sell pinch rollers. Asked about "restorers"... not heard back yet.

_________________
Roger Jones,
Thornhill, Ontario
Ontario Vintage Radio Assoc. http://www.ovra.ca


Last edited by engineer on Mar Wed 06, 2019 11:54 pm, edited 1 time in total.

Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Mar Tue 05, 2019 11:50 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 1488
Location: Jackson, TN
This guy does a great job...
http://www.wjoe.com/vintageandantiques.htm#mara

I don't see your Marantz model but you might contact him.

I bought a set for a Panasonic last year, in addition to very competitive pricing he furnished a step by step illustrated installation guide. I'd have been in trouble without it.

Also, be careful with the liquefied belts. Clean out the tar carefully with alcohol before it gets everywhere. I'm not sure how I know this but it's easy to drop a blob on the floor then track it onto the carpet.

Tim


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Mar Thu 07, 2019 5:13 pm 
Member
User avatar

Joined: Nov Fri 10, 2006 12:24 am
Posts: 2439
Location: Thornhill, Ontario, Canada
Tkilboy wrote:
... Also, be careful with the liquefied belts. Clean out the tar carefully with alcohol before it gets everywhere... Tim
Iso-propyl alcohol did not work. Nor did "Googone". However, "Goof off" worked very well. Yes, liquefied rubber is a potential disaster... I learned that quickly and did not make any serious handling mistakes, but it did take a day to get a couple of black marks off my hands...!
Cheers,
Roger
PS. I'm now looking into pinch-roller rubber surface conditioner... hopefully to make it grip the tape.

_________________
Roger Jones,
Thornhill, Ontario
Ontario Vintage Radio Assoc. http://www.ovra.ca


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Mar Thu 07, 2019 8:53 pm 
Member

Joined: Aug Fri 12, 2016 1:49 am
Posts: 747
Location: Houston, TX
I've tried various rubber revitalizers on audio and video cassette deck rollers and idlers over the years and they are at best a stopgap measure to evaluate the rest of the mechanism to determine whether the overall repair will be worthwhile.

While these chemical treatments do somewhat work on shiny rubber, a gentle scrubbing with an emery board or other abrasive, followed by cleanup with alcohol, works just as well.

if the rubber has gotten firm at all, which you said yours has, trying to "renew" it is a complete waste of time and effort. This works about as well as roughing up the surface of a steel roller and expecting it to grip the tape. The reason a rubber roller grips is because it bends, around the capstan. When they lose their elastomeric properties (pliability), replacement is the only viable option.

just my 2 cents...


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Mar Fri 08, 2019 7:09 am 
Member
User avatar

Joined: Dec Wed 23, 2015 3:03 am
Posts: 511
Location: Northwest Indiana
Vin Tageman wrote:
I've tried various rubber revitalizers on audio and video cassette deck rollers and idlers over the years and they are at best a stopgap measure to evaluate the rest of the mechanism to determine whether the overall repair will be worthwhile.

While these chemical treatments do somewhat work on shiny rubber, a gentle scrubbing with an emery board or other abrasive, followed by cleanup with alcohol, works just as well.

if the rubber has gotten firm at all, which you said yours has, trying to "renew" it is a complete waste of time and effort. This works about as well as roughing up the surface of a steel roller and expecting it to grip the tape. The reason a rubber roller grips is because it bends, around the capstan. When they lose their elastomeric properties (pliability), replacement is the only viable option.

just my 2 cents...


I like to use it soften up the rubber then, as you mentioned, gently roughen it up with some 400 or 600 grit paper.

_________________
"It's amazing what you can accomplish when you throw safety out the window", Brent Butt


Top
 Profile  
 
 Post subject: Re: Marantz cassette machine: need DRIVE belts
PostPosted: Mar Fri 08, 2019 11:46 pm 
Member
User avatar

Joined: Nov Fri 10, 2006 12:24 am
Posts: 2439
Location: Thornhill, Ontario, Canada
Vin Tageman wrote:
... if the rubber has gotten firm at all, which you said yours has, trying to "renew" it is a complete waste of time and effort. This works about as well as roughing up the surface of a steel roller and expecting it to grip the tape. The reason a rubber roller grips is because it bends, around the capstan. When they lose their elastomeric properties (pliability), replacement is the only viable option....
Very good points... indeed, it must indent around the capstan over a small angle to work. I rechecked the rubber pinch roller... edges are softer than I first thought. I might as well try surface treatment, but whatever happens, I will still replace it as soon as I can find a new one.
Cheers,
Roger
EDIT....PS. I am pursuing this through our "WTB" section. R.

_________________
Roger Jones,
Thornhill, Ontario
Ontario Vintage Radio Assoc. http://www.ovra.ca


Last edited by engineer on Mar Sat 16, 2019 1:43 am, edited 1 time in total.

Top
 Profile  
 
Post New Topic Post Reply  [ 22 posts ]  Go to page 1, 2  Next

All times are UTC [ DST ]


Who is online

Users browsing this forum: Jim Mueller and 2 guests



Search for:
Jump to:  
cron




























Privacy Policy :: Powered by phpBB