Windscreen wiper drive motor gearbox refurbishment, 1973 MGB tourer : MGB & GT Forum : The MG Experience

Windscreen wiper drive motor gearbox refurbishment, 1973 MGB tourer #1 This topic is about my 1973 MG MGB
riley1489 Bruce H Great White North, QC, Canada Sign in to contact 1953 Jaguar XK120 1959 Riley 1.5 "King George" 1973 MG MGB	Topic Creator (OP) Dec 9, 2016 11:53 AM Top Contributor Joined 12 years ago 26,297 Posts

Easy & fast question;

I am ready to re assemble, so

How much grease do you guys pack into this motor gear box? What type of grease?

TIA

B

Life's most persistent and urgent question is, "What are you doing for others?"

Edited 1 time(s). Last edit at 2016-12-09 01:16 PM by riley1489.

BH_windscreen box.jpg 53.7 KB

Reply

Was this post helpful or interesting?

Yes No Thank

Re: Windscreen wiper box refurbishment, 1973 MGB tourer #2
Mick from Scotland Mick Rae East Lothian, Scotland, UK Sign in to contact 1973 MG MGB GT	Dec 9, 2016 12:12 PM Top Contributor Joined 14 years ago 1,822 Posts

Bruce, I put grease on all the contact areas where movement happens, plus a little more smeared over all parts, but not huge amounts. I used Castrol LM. Whether correct or not it has worked, or at very least, the wiper motor has shown no ill. When I took mine apart at first it was absolutely heaving with grease, the majority of which was doing little or nothing, just sitting there is great gobs, couldn't see any point in having grease where there was no function, other than perhaps rust proofing, which a decent smear would do just as well.

Reply

Was this post helpful or interesting?

Yes No Thank

Re: Windscreen wiper box refurbishment, 1973 MGB tourer #3
ClayJ Clay Johnston Mt. Olive, MS, USA Sign in to contact 1972 MG MGB	Dec 9, 2016 01:14 PM Top Contributor Joined 18 years ago 17,635 Posts

I used liberal amounts of white lithium grease.

Also "wiper box" normally refers to the assembly the wiper-arm attaches to. White lithium grease applies either way smiling smiley

Reply

Was this post helpful or interesting?

Yes No Thank

Re: Windscreen wiper box refurbishment, 1973 MGB tourer #4
riley1489 Bruce H Great White North, QC, Canada Sign in to contact 1953 Jaguar XK120 1959 Riley 1.5 "King George" 1973 MG MGB	Topic Creator (OP) Dec 9, 2016 01:19 PM Top Contributor Joined 12 years ago 26,297 Posts

In reply to # 3409190 by ClayJ I used liberal amounts of white lithium grease.

Also "wiper box" normally refers to the assembly the wiper-arm attaches to. White lithium grease applies either way smiling smiley

Thanks Clay I have edited the OP.

I have always called those bits the wheel box but I know what I need

Thanks

B

Life's most persistent and urgent question is, "What are you doing for others?"

Reply

Was this post helpful or interesting?

Yes No Thank

Re: Windscreen wiper drive motor gearbox refurbishment, 1973 MGB tourer #5
rntanner Roger N. Tanner (Disabled) Oxnard, CA, USA Sign in to contact 1970 MG MGB 1977 MG MGB	Dec 9, 2016 01:24 PM Joined 15 years ago 4,348 Posts

I don't know how cold you get; but, this is what people think is the best for very low temperatures:

http://www.dowcorning.com/content/news/molykote_news_33BearingGrease.asp

Of course, 1/2 mile from the 65 Deg F. Pacific Ocean in Oxnard, CA, the outside temperature is 65 Deg F. also.

Moss is not in Goleta, CA by accident.

Roger N. Tanner
Professional Engineer, Retired

Reply

Was this post helpful or interesting?

Yes No Thank

Re: Windscreen wiper drive motor gearbox refurbishment, 1973 MGB tourer #6
riley1489 Bruce H Great White North, QC, Canada Sign in to contact 1953 Jaguar XK120 1959 Riley 1.5 "King George" 1973 MG MGB	Topic Creator (OP) Dec 10, 2016 07:31 AM Top Contributor Joined 12 years ago 26,297 Posts

Thanks chaps
I filled the teeth in the large cog with grease, packed the motor drive worm with same and added a tad in the cavity below the worm. I smeared a tad of grease in the link slide as well.

FWIW I used Super Lube GP grease with PTFE technology. winking smiley

as written on the can.

B

Life's most persistent and urgent question is, "What are you doing for others?"

Reply

Was this post helpful or interesting?

Yes No Thank

Re: Windscreen wiper drive motor gearbox refurbishment, 1973 MGB tourer #7
riley1489 Bruce H Great White North, QC, Canada Sign in to contact 1953 Jaguar XK120 1959 Riley 1.5 "King George" 1973 MG MGB	Topic Creator (OP) Dec 14, 2016 04:28 PM Top Contributor Joined 12 years ago 26,297 Posts

New question,

How much grease to apply when assembling the worm & wheel boxes?

Do we fill the worm before feeding it into the guides then pack grease locally at the wheel box, before closing the cover?

B

Life's most persistent and urgent question is, "What are you doing for others?"

Reply

Was this post helpful or interesting?

Yes No Thank

Re: Windscreen wiper drive motor gearbox refurbishment, 1973 MGB tourer #8
riley1489 Bruce H Great White North, QC, Canada Sign in to contact 1953 Jaguar XK120 1959 Riley 1.5 "King George" 1973 MG MGB	Topic Creator (OP) Dec 15, 2016 08:15 AM Top Contributor Joined 12 years ago 26,297 Posts

No one?

I decided to apply grease along the full length of the worm and will put a 'decent' amount at the wheel gear in each of the spindle boxes.

B.

Life's most persistent and urgent question is, "What are you doing for others?"

Reply

Was this post helpful or interesting?

Yes No Thank

Re: Windscreen wiper drive motor gearbox refurbishment, 1973 MGB tourer #9
Ahmed Ahmed A Calgary, AB, Canada Sign in to contact 1958 MG MGA 1972 MG MGB 1979 MG MGB	Dec 15, 2016 10:52 AM Top Contributor Joined 17 years ago 5,161 Posts

Bruce,
While I don't have a personal experience refurbishing the wiper motor (yet!), but I would do what you just did. Apply light grease on the gear teeth and worm gear. Not really "packing" it, but rather a skim coat. If you open any similar mechanism you will notice the manufacturer only applies a small mount where parts touch.

As for the type of grease, I had good luck with Marine grease, since it stays where you put it and doesn't harden. I use the one from CT (good and inexpensive). White lithium grease is very good too.
http://www.canadiantire.ca/en/pdp/motomaster-marine-grease-400-g-0280880p.html
http://www.canadiantire.ca/en/pdp/marine-trailer-grease-0280853p.html
http://www.canadiantire.ca/en/pdp/permatex-white-lithium-grease-42-g-0383713p.html

My 1958 MGA is not a car, it's a CAREER..!! ... angry smiley

Reply

Was this post helpful or interesting?

Yes No Thank

Re: Windscreen wiper drive motor gearbox refurbishment, 1973 MGB tourer #10
chris Chris Roop (RIP) Pendleton, OR, USA Sign in to contact	Dec 15, 2016 11:49 AM Top Contributor Joined 25 years ago 43,805 Posts

Yes, grease the length of the cable.

Reply

Was this post helpful or interesting?

Yes No Thank

Re: Windscreen wiper drive motor gearbox refurbishment, 1973 MGB tourer #11
warekl Keith Ware White Bear Lake Mn, USA Sign in to contact 1972 MG Midget 1973 MG MGB GT 1978 MG Midget MkIV 1979 MG MGB	Dec 15, 2016 12:59 PM Top Contributor Joined 14 years ago 3,724 Posts

Planning on that for one of my summer projects on my 79. Wipers run very slowly and I'm guessing old stiff grease is the culprit.......

USMC 1967 - Always ... Semper Fi
79 RB Lowered, HS4s by Dave Braun & "Schlemmerized" 25D Dizzy, 9.5:1 CR, Mild Performance Cam, 18V with OD Tranny.
78 Midget MK IV Pagent Blue
73 GT in Black Tulip.. Engine by Hap Waldrop, OD Transmission by Dick Moritz Distributor is "Schlemmerized"
72 Midget MKIII Red

Reply

Was this post helpful or interesting?

Yes No Thank

Re: Windscreen wiper drive motor gearbox refurbishment, 1973 MGB tourer #12
riley1489 Bruce H Great White North, QC, Canada Sign in to contact 1953 Jaguar XK120 1959 Riley 1.5 "King George" 1973 MG MGB	Topic Creator (OP) Dec 17, 2016 09:24 AM Top Contributor Joined 12 years ago 26,297 Posts

The overhaul pretty much done, motor cleaned of old grease, electrical connections cleaned up, now just waiting for new wheel boxes to arrive. My original wheel boxes were badly corroded and the threads for the nuts were bugge*d.

Thanks to all

B

Life's most persistent and urgent question is, "What are you doing for others?"

BH_WW gearbox.jpg 32.4 KB

Reply

Was this post helpful or interesting?

Yes No Thank

MGB & GT Forum

Windscreen wiper drive motor gearbox refurbishment, 1973 MGB tourer

To reply or ask your own question:Members Sign InorCreate an AccountRegistration is FREE and takes less than a minute

To reply or ask your own question:

or

Registration is FREE and takes less than a minute