B18/20 timing gears.

[arcturus]

Just wondering, is there and lubrication for the timing gears or are they just supposed to run dry. i ask because after my fiber gear wheel collapsed on me a while ago I replaced the gear wheels with metal ones. They do tend to whine.

[Clan]

Originally Posted by arcturus

Just wondering, is there and lubrication for the timing gears or are they just supposed to run dry. i ask because after my fiber gear wheel collapsed on me a while ago I replaced the gear wheels with metal ones. They do tend to whine.

there is an oil jet which sprays from a brass jet fitted to the block in the timing cover . perhaps it is blocked causing your initial failure ?

[Volvorama]

The fibre gears usually wear gradually making the car sound like a series diesel Landrover, but I had one disintegrate suddenly on a 164E. The oil sprayer was OK.
My 144S has steel gears and indeed they're slightly noisier.

[arcturus]

Looking at my on line manual I can see it for the first time. Is it a continuous spray and if so is there a return otherwise the cavity would fill up. I was thing before you pointed out the spray, of drilling and tapping a hole for a grease nipple and pumping some grease in

[Clan]

Originally Posted by arcturus

Looking at my on line manual I can see it for the first time. Is it a continuous spray and if so is there a return otherwise the cavity would fill up. I was thing before you pointed out the spray, of drilling and tapping a hole for a grease nipple and pumping some grease in

yes a continuous spray , it runs back to the sump ... however after 40 years the spray nozzle could be blocked of course with the quality oil available at the time . .

[tdz840]

There is a case for slightly opening up the hole. Not excessive but a 1/32" or so.
Make sure the holes is angled towards the gear interaction point

Russ

[old fart]

Also make sure the camshaft gear is fully home. Mine was noisy until I ran the engine until warm and then stripped the front off and tightened up, didn't go up much, but made a hell of a difference.

[Derek UK]

This was my broken one (noises in the other video). The small square brass block you can see just above and to the left of the crank is the oiler. As Russ said adjust so the oil stream goes directly into the junction of the two gears. That way the gears squeeze a cushion of oil. Will help to lower the noise in the steel gears too.
Remove the squirter block and clean thoroughly. Paper clip probably all you need. If you're brave you can run the engine for a few seconds to prove it! Put a tray under the front first...............

https://www.youtube.com/watch?v=nGykPiE43Ik

[omc 47]

I had this knock on my Amazon Estate when visiting Weston Super Mare some years ago, we eventually started back home to Worcestershire via M5 etc and by the time we had got home the old girl was struggling to keep the timing right but as is true of the Amazon she never let us down and after a mornings work the new gear set was fitted with no ill effects..................

[arcturus]

I will probably open up the timing rear casing and check the oil jet when I do my 500mile oil and filter change and head bolt tightening. Will I need a puller to take of the fan belt pulley?