• Hi Guest! Being a Paying Supporter is NOT a requirement to participate at BCF. However, subscribing will help ensure we can continue to serve the LBC community for years to come. If you enjoy BCF and find our forum a useful resource...Please consider supporting us by **Upgrading**
    (PS: Subscribers don't see this banner)
Tips
Tips

TR4/4A Another Wiper Question - Very Sluggish

fpstude

Senior Member
Silver
Country flag
Offline
grant tr4a has a current post answering my questions on how to remove the motor. My wiper system is very sluggish. Is it likely the motor needs some lubrication? Or the linkage? Any input would be appreciated.
 

Tosh

Jedi Trainee
Offline
Lubrication is good especially the wheel boxes.
Something else to consider; the parking switch may need replaced. My wipers were slow and would stop anywhere in the sweep when shut off.
Replacing the parking switch cured both problems.

Keep on'

PS: Raymond Loewy.........awesome.
 
Last edited:

JerryVV

Jedi Warrior
Offline
The grease in the motor gearbox can harden over the years as well as the grease in the tubes and wheelboxes. First thing to do is clean the gearbox and renew the grease. If that doesn't help then the cable, tube and wheelboxes need to be cleaned and re-greased. Only then would I say the motor needs attention. Those motors are very strong.
JVV
 
OP
fpstude

fpstude

Senior Member
Silver
Country flag
Offline
Thanks, great ideas. What / where are wheel boxes? None of these items discussed have ever been serviced. I'd say it's about time.
 

tinman58

Jedi Knight
Silver
Country flag
Offline
I am dealing with the wheel box's right now on my 250. Where your wiper arms attach, just underneath the sheet metal. They are a pain in the a-- to get to. I have spent about 4 hours trying to get the cable to run smooth thru the tube. That is with no dash installed.
 

Foura

Jedi Hopeful
Gold
Country flag
Offline
I am dealing with the wheel box's right now on my 250. Where your wiper arms attach, just underneath the sheet metal. They are a pain in the a-- to get to. I have spent about 4 hours trying to get the cable to run smooth thru the tube. That is with no dash installed.
I am waiting for the definitive history of Triumph motor cars to come out. The one showing a picture of the guy on the production line who had 3 arms - one to hold the wheel box, one to hold the screws and one to hold the screwdriver. I have often wondered if they installed the wheel boxes BEFORE they welded up the front bulkhead! At 4 hours, you did well, Tinman.
 

Jerry

Luke Skywalker
Gold
Country flag
Offline
And when you take the wiper box apart and see the old grease, note the color. Most of them are army green, probably from WW2? As mentioned above, it is also usually hard and not lubricating anymore. Replace it with wheel bearing grease. IE: lots around the gear and the trough that the arm moves in.
If you are really brave, take the motor out and clean out the rust inside. All these things have made the wipers work again just like new, SLOW>
Jerry
 

glemon

Yoda
Country flag
Offline
I took my wiper motor apart and cleaned and regreased it, really not too hard. The wiper gearboxes were another story, the chrome nuts that hold them on from the top were very stuck, couldn't get anything to come off without twisting the sheet metal. I soaked the boxes with WD40 and maybe some brake cleaner to thin out the old stuff, then used some spray lube, but without getting in there to really clean everything out the wipers are, as Jerry said, SLOW
 

JerryVV

Jedi Warrior
Offline
I rebuild my whole system when I restored my 4A and used new wheelboxes. I used a wheel bearing grease in the tubes and the wheelboxes and a white grease in the motor gearbox. They go really fast now, almost too fast on high speed. One caution, the wiper arms fit a bit too loose to the aftermarket wheelboxes and if anything resists the wiper action the motor strips the serrations on the wheelbox in a heartbeat.
 

tinman58

Jedi Knight
Silver
Country flag
Offline
Jerry
How much tension or drag did you have after installing all new parts? I have installed all new parts and it seem's that I need to pull the cable a little to hard to get the wipers to go back and forth. The operation is not very smooth. Is that normal?
 

JerryVV

Jedi Warrior
Offline
I really can't remember but I think it was pretty hard to move them by hand by just pulling and pushing the cable. That motor is very strong and geared for a lot of torque so it seems effortless for the motor.
 

tinman58

Jedi Knight
Silver
Country flag
Offline
Thank you Jerry! That is what I had hoped. So now I can start on installing the dash and steering.
 

alanjohnturner

Jedi Trainee
Offline
One thing that increases drag on the motor is poor alignment of the tubes that are clamped into the wheel-boxes.

Especially the one nearest the motor. This has a couple of tricky bends and need to be rotated and jiggled about to get a smooth run into the motor.

A good indication is that the big nut on the motor should be easy to engage and do up by fingers alone.

Another problem is a bent connecting shaft between the wire-rack and the crank-pin on the big gear in the motor.
This makes it grind against the top-plate.

Guys get lazy and lever these up to get the rack free rather than unclipping the retainer on the crank-pin.
Hence shaft is bent up and drags.

If you have a two-speed motor remember this is like overdrive, you get less torque but more speed.
You need a low-friction build and a wet screen to get the motor to pull the faster speed.
 
Similar threads
Thread starter Title Forum Replies Date
T TR4/4A Another wiper motor thread - TR4A Triumph 9
nichola TR6 Another TR6 back on the road Triumph 1
Sherlock Another cruise night, more interesting British iron Spotted 2
D TR2/3/3A Another Carb question. Triumph 22
Healey Nut Another Use for J-B Weld Austin Healey 5
D TR2/3/3A Have exchanged one leak for another. Triumph 9
dbenichou289 TR2/3/3A Another exhausting thread Triumph 10
D TR2/3/3A Another mystery part..or two Triumph 14
John Turney Another Article to Criticize Austin Healey 5
tr6nitjulius TR6 TR6 made another list! Triumph 5
Lin Another Trafficator/Control Head Question Austin Healey 10
Rob Glasgow Can I find Another one as Good? Austin Healey 4
V LED light bulbs : One thing leads to another Spridgets 7
V LED light bulbs : One thing leads to another Austin Healey 2
Editor_Reid Bought Another One Austin Healey 14
tr6nitjulius General TR Triumphest 2019 another one bites the dust! Triumph 2
pkmh Yet Another Oil Question! Austin Healey 8
P TR2/3/3A Another Differential Question Triumph 22
Bob Claffie Spotted another AH Spotted 0
SherpaPilot TR6 Just Another TR6 Column Question Triumph 0
TomMull Post-War Other HERALD Simple Task turns into another project. Triumph 11
jackq Another building full of cars available. Other Cars 0
M TR2/3/3A Another TR3 Piston Ring Gap Question Triumph 1
Lin Another trafficator issue Austin Healey 8
B Another OD question Austin Healey 32
Elva164 Finally did another onboard video! Racing 4
Sarastro TR4/4A Another milestone: first engine start Triumph 8
RAC68 Another Discussion of Trans/OD Fluid Austin Healey 14
Y MGB Another question - this time on seatbelts.... MG 2
PC another one bites the dust... Restoration & Tools 0
AngliaGT Another MGB Spotted 0
J Another Healey back on the road....for now. Austin Healey 8
D TR6 Another Newb Question Triumph 10
D Another use for a leaf blower. Restoration & Tools 1
C Another leak, another question... Austin Healey 20
K TR2/3/3A Another Steering Question... Triumph 17
R Still Another Healey Brake Bleeding Saga [unfinished] Austin Healey 9
CLEAH Another BJ8 Misfire Question Austin Healey 11
G TR4/4A Well...another stripped trunnion Triumph 8
T TR2/3/3A Another wheel bearing thread Triumph 5
B Another disc brake question Spridgets 10
D TR2/3/3A Another starter problem Triumph 2
TomMull Another tool score? Restoration & Tools 6
T TR2/3/3A Another TRip Triumph 17
K TR2/3/3A Another windshield question...bolts and screws? Triumph 7
Healey Nut Another 100M Austin Healey 9
NutmegCT Another for J-P! Other Cars 8
D Another Valve Guide Question Austin Healey 1
NutmegCT Another pre-WW2 streamlined sedan Other Cars 1
Jim_Gruber Did I find another need for a Whitworth Wrench Set/ Did I screw up intake manifold Spridgets 5

Similar threads

Top