Hi, just stripped the oil pump and noted that when upon assembly, a certain lube is recommended, anyone know what that might be. I was also wondering if the different speedo' ratios are achieved with the use of different spiral drives in the box and that the shaft that spins the cable are all the same, thanks David
speedo' drive and oil pump
- Thread starter fireflake
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Where have you seen that?
If "a certain lube is recommended" then doesn't that answer the first part of the question...or I'm not following this and I've only used engine oil.
I don't follow, as the "spiral" (worm) gear is the shaft that drives the cable.
Worm Gears Explained
What Is a Worm Gear? A worm gear is a gear consisting of a shaft with a spiral thread that engages with and drives a toothed wheel. Worm gears are an old style of gear, and a version of one of...
www.machinerylubrication.com
I would expect each ratio to be a matched pair of gears.
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I use Suzuki Moly Paste (Part # 99000-25140 and around $15 for a small tube) on all high load items in new engines including oil pumps and am yet to find a better product (to the point of not getting it on your skin being hard to remove)
Moly assembly lube would be a second option for me (more for bearing shells)
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I use Graphogen assembly paste if that could be the "certain lube". I don't think I used it on the oil pump.
SteveA
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I am a great advocate of Graphogen for engine assembly, on big ends, around new mains, piston rings, cam journals and lobes, etc, etc.....I use Graphogen assembly paste if that could be the "certain lube". I don't think I used it on the oil pump.
But I wouldn't dream of putting it in an oil pump.....and I sincerely doubt you did....engine oil only, using an oil can and spinning the pump!
Why? Because you want the pump to draw and feed free flowing engine oil as soon as possible on start up, and I just can't see how any paste would help the pump do that.
I do prime the system with engine oil using a manual pump/syringe when I am ready to do the initial start.
(I also do initial start up on rollers and have an oil pressure gauge temporarily fitted to confirm some oil pressure before inserting the spark plugs!, but I use it this stuff because I have it. I wouldn't do this with a kick-start, or even an electric start.)
I have never seen advice to use anything other than oil!
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Yes, if I had used it, which I don't think I did, then it would've been on the drive spindle but as the oil seems to make its way through the pump easily enough (unless there's an anti-wetsump valve!) without assistance when standing then the pump shouldn't be without lubricant.
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Please specify where you found mention of a recommended lubricant for the speedometer drive. Since the shaft that drives the speedo cable is part of the worm gear, no, that part differs for both the 2:1 ratio and 1.25:1 ratio speedometer drive gearboxes.
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That was for the oil pump.
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I actually found the recommendation for lubing the speedometer drive.
So, Esso is now part of Exxon/Mobil. They list two G.P. [general purpose] aviation greases.
Mobil SHC 100 Grease
and
Mobil Grease 33
I'm sure that the products recommended by others would also be suitable.
So, Esso is now part of Exxon/Mobil. They list two G.P. [general purpose] aviation greases.
Mobil SHC 100 Grease
and
Mobil Grease 33
I'm sure that the products recommended by others would also be suitable.
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And the one , not available everywhere ..... 
Rocker Box Grease | Aircraft engine manual valve lubricant
Non-Fluid oil for pre-war piston engine rocker boxes requiring manual lubrication
www.jewellamberoil.com
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Standard grease fitting for speedo drive
Has anybody found a standard grease fitting that screws into the speedo drive w/o retapping the threads? I'd like to use a standard USA grease gun on the speedo drive. It is a replacement from Baxters. They are getting quite expensive so I don't want this one to let loose. Thanks in advance, Marshal
www.accessnorton.com
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However, fireflake's query was about a certain lube being required for the oil pump...
..but that appears to have been a misinterpretation of the information on the RGM website regarding new (AN) oil pumps that says: "pumps should not be dismantled or degreased before installation" and not that a special lube is required when rebuilding existing pumps...
"TWIN CYLINDER OIL PUMP. THIS OIL PUMP HAS BEEN SELECTIVELY ASSEMBLED AND TEST-RUN TO ENSURE CORRECT PERFORMANCE. DO NOT ATTEMPT TO DISMANTLE OR DE-GREASE IT BEFORE INSTALLATION AS THIS WILL REMOVE VITAL LUBRICANT FROM INTERIOR COMPONENTS."
The speedo drive gearbox part of the post was about ratios.
..but that appears to have been a misinterpretation of the information on the RGM website regarding new (AN) oil pumps that says: "pumps should not be dismantled or degreased before installation" and not that a special lube is required when rebuilding existing pumps...
TWIN CYLINDER OIL PUMP ASSEMBLY
NM25368 066193 RGM NORTON OIL PUMP ASSEMBLY 063037 TWIN CYLINDER OIL PUMP ASSEMBLY
www.rgmnorton.co.uk
"TWIN CYLINDER OIL PUMP. THIS OIL PUMP HAS BEEN SELECTIVELY ASSEMBLED AND TEST-RUN TO ENSURE CORRECT PERFORMANCE. DO NOT ATTEMPT TO DISMANTLE OR DE-GREASE IT BEFORE INSTALLATION AS THIS WILL REMOVE VITAL LUBRICANT FROM INTERIOR COMPONENTS."
The speedo drive gearbox part of the post was about ratios.
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Actually, he was asking if the output shaft [part of the worm gear] is interchangeable between the two different ratios.However, fireflake's query was about a certain lube being required for the oil pump...
..but that appears to have been a misinterpretation of the information on the RGM website regarding new (AN) oil pumps that says: "pumps should not be dismantled or degreased before installation" and not that a special lube is required when rebuilding existing pumps...
TWIN CYLINDER OIL PUMP ASSEMBLY
NM25368 066193 RGM NORTON OIL PUMP ASSEMBLY 063037 TWIN CYLINDER OIL PUMP ASSEMBLYwww.rgmnorton.co.uk
"TWIN CYLINDER OIL PUMP. THIS OIL PUMP HAS BEEN SELECTIVELY ASSEMBLED AND TEST-RUN TO ENSURE CORRECT PERFORMANCE. DO NOT ATTEMPT TO DISMANTLE OR DE-GREASE IT BEFORE INSTALLATION AS THIS WILL REMOVE VITAL LUBRICANT FROM INTERIOR COMPONENTS."
The speedo drive gearbox part of the post was about ratios.
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ashman
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I only lightly grease my speedo drive when I am replacing the tyre or when the wheel is off the bike, I am still running my original speedo drive as well the original cable since new and with well over 160k miles on it, as for engine rebuilds I mix a 50/50 mix of motor oil and STP for assembly nothing else, I also prime the oil pump with the same mix, have been doing this ever since my first rebuild and in every other motor rebuilds I have done, have done a few Norton and Triumph motors this way and have never had any problems and every rebuild I have so far done the motors are still going and I been mixing STP in all my oil changes since the late 70s on all my old British bikes, some may say snake oil but it works for me and have got long life out of my motors, my mate also uses STP in his old Triumph and it keeps going.
Ashley
Ashley
SteveA
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Actually....he may just be a confused person....but I am sure we have put him right!
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