1953 Leyland OPD2/1 [2818]
2024
Mechanical November
Norman Julian 6th Nov
Hello folks! This is a bit of an S.O.S. actually! With all the buses I have pulled apart this had to happen.
There is a connection that goes on the thread pictured which is the main inlet to the injector pump from the tank.
It is a short fitting that has a nut and olive on one end which screws onto the thread and on the other is a barbed fitting for a rubber hose to fit and be held on with a hose clamp.
Well I cannot find it so I need to make another.
The problem is these fittings, they are some sort of whitworth fitting that you just can't buy over the counter.
BSP fitting aren't the same. My question is if anyone has any of these fittings and are willing to part with, I would be very appreciative.
I can take them off old pipe and sweat them on something I can use.
Hello folks! This is a bit of an S.O.S. actually! With all the buses I have pulled apart this had to happen.
There is a connection that goes on the thread pictured which is the main inlet to the injector pump from the tank.
It is a short fitting that has a nut and olive on one end which screws onto the thread and on the other is a barbed fitting for a rubber hose to fit and be held on with a hose clamp.
Well I cannot find it so I need to make another.
The problem is these fittings, they are some sort of whitworth fitting that you just can't buy over the counter.
BSP fitting aren't the same. My question is if anyone has any of these fittings and are willing to part with, I would be very appreciative.
I can take them off old pipe and sweat them on something I can use.
Scott Wilson
Who many do you want ? 🤣
Norman Julian
Scott Wilson One for this job and a spare or to would be fine
Andrew Blacklock
Try a Old school diesel pump shop
Who many do you want ? 🤣
Norman Julian
Scott Wilson One for this job and a spare or to would be fine
Andrew Blacklock
Try a Old school diesel pump shop
Norman Julian 6th Nov
Starting to look like a very busy engine bay again.
Most things are running smoothly except I don't know what is going on with the back return pipe (pictured).
One end supposed to go in rail as in picture andvthe other is supposed to go onto the outlet between 2 injector lines.
Now, none of the lines has been modified in any way.
I found a few photos before I took too much off and it is this shape.
The only thing that comes to mind is the main rail was bolted onto the bottom exhaust stud, and was hanging loose.
That would make better sense.
Starting to look like a very busy engine bay again.
Most things are running smoothly except I don't know what is going on with the back return pipe (pictured).
One end supposed to go in rail as in picture andvthe other is supposed to go onto the outlet between 2 injector lines.
Now, none of the lines has been modified in any way.
I found a few photos before I took too much off and it is this shape.
The only thing that comes to mind is the main rail was bolted onto the bottom exhaust stud, and was hanging loose.
That would make better sense.
Scott Wilson
Bolts to water side plate.
Norman Julian
Scott Wilson maybe in other buses but not this one
Scott Wilson
Norman Julian I wouldn't bolt fuel lines to exhaust studs.
Norman Julian
Scott Wilson lasted this long.
It has standoff brackets attached anyway.
I'm not re-routing everything.
I could put fibre washers in between.
Bolts to water side plate.
Norman Julian
Scott Wilson maybe in other buses but not this one
Scott Wilson
Norman Julian I wouldn't bolt fuel lines to exhaust studs.
Norman Julian
Scott Wilson lasted this long.
It has standoff brackets attached anyway.
I'm not re-routing everything.
I could put fibre washers in between.
Norman Julian
The mounting brackets sit nicely in the bottom screw holes of the exhaust manifold as pictured.
The front leak-off tube is lined up where it supposed to be.
It also has been shaped to go round the exhaust manifold, so the factory didn't think it was going to be a problem there so why would there be anything different with the main rail, Scott Wilson.
The water jacket plate bolts don't lign up anyway.
The mounting brackets sit nicely in the bottom screw holes of the exhaust manifold as pictured.
The front leak-off tube is lined up where it supposed to be.
It also has been shaped to go round the exhaust manifold, so the factory didn't think it was going to be a problem there so why would there be anything different with the main rail, Scott Wilson.
The water jacket plate bolts don't lign up anyway.
Norman Julian
This pipe goes around the exhaust manifold.
This pipe goes around the exhaust manifold.
Norman Julian
I'm guessing this perforated brass plate between the engine and oil filler neck is to stop foreign nuts and bolts getting in.
Whether by accident or deliberately.
I'm guessing this perforated brass plate between the engine and oil filler neck is to stop foreign nuts and bolts getting in.
Whether by accident or deliberately.
Norman Julian 11 Nov
Nearly there!
Have to reconnect the exhaust and a few small things, but because the waterpump is non functioning, I cannot put the radiator back in.
Unlike the AEC, I can't tilt the radiator forward.
I am pleased with the paint job.
Not over the top.
It has the desired look for me.
Nearly there!
Have to reconnect the exhaust and a few small things, but because the waterpump is non functioning, I cannot put the radiator back in.
Unlike the AEC, I can't tilt the radiator forward.
I am pleased with the paint job.
Not over the top.
It has the desired look for me.
Norman Julian 12 Nov
Today I'm doing a few things. Firstly, I'm coating the oil air filter with an oil just floating around the shed.
I don't want to fill the reservior with oil just yet, but if I leave it empty altogether surface rust will appear and I don't want that.
The other thing was to put the freshly cast thermostat housing on.
In one picture you can see 2 thermostats.
The bottom one is the original and the replacement unit has been tested and it works fine.
The original one has fallen apart.
First of all I thought some of the screws had come off but when I compared it to the replacement type, it had pieces missing. Lord knows where they ended up.
Special mention to Andrew Blacklock who organised through a guy he knows for the recasting of the thermostat housing.
It is a good recasting. Secondly, thanks to Scott Wilson for the thermostat itself. Didn't think I would ever get another one.
Today I'm doing a few things. Firstly, I'm coating the oil air filter with an oil just floating around the shed.
I don't want to fill the reservior with oil just yet, but if I leave it empty altogether surface rust will appear and I don't want that.
The other thing was to put the freshly cast thermostat housing on.
In one picture you can see 2 thermostats.
The bottom one is the original and the replacement unit has been tested and it works fine.
The original one has fallen apart.
First of all I thought some of the screws had come off but when I compared it to the replacement type, it had pieces missing. Lord knows where they ended up.
Special mention to Andrew Blacklock who organised through a guy he knows for the recasting of the thermostat housing.
It is a good recasting. Secondly, thanks to Scott Wilson for the thermostat itself. Didn't think I would ever get another one.
Norman Julian 12 Nov
Well this is a sad and sorry state of affairs.
I had a closer look at this waterpump inners and I can't fix this without new parts.
The ceramic disc on the pump body and this disc are very good but the spring and rubber seal are "kaput".
The shaft leads a lot to be desired as well.
I sent an email to ABC diesels just now, so we will see what that leads to.
Lee Hall
John should have the kits.
It's not too bad to do.
Norman Julian
Lee Hall what did you replace in yours?
Lee Hall
Norman Julian I did the bearings and gland seal.
All the screws on the back plate were seized and half snapped so I had to drill new holes and tap them with new stainless screws.
Norman Julian 13th Nov
Well here we are at the very last piece to get this engine running properly, but unfortunately there is a dark cloud overhead.
I have been conversing with John from ABC Diesels about this pump and apparently it is tech from the mid forties and rarity is rife.
Apparently, they did a mid fifties update to this pump involving seals, gaskets and the impeller.
This pump still has the original seals and impeller in it.
That doesn't mean all that much, maybe when the chassis came to Australia there may have been a supply of spares as well.
Anyway, getting back to this pump, the pump body looks OK from the outside but looking at the inside there looks to be lots of corrosion
but I can't be sure lots of it isn't just a build up of water minerals.
Apparently though if ABC Diesels is any indication the pump bodies are all but non existent these days.
People would just order a whole new body instead of repairing what they had.
Nothing wrong with that back then, but we can't afford to do that anymore.
This stage there is only a 50/50 chance he has any in stock.
If I can't get a seal kit for this, that will throw a spanner in the works.
Fred Holland
Hope you can get the wanted seals Norm, can't let it beat you now so close.
Phil Steele
Hope you have no trouble with it.
Lee Hall
Ah mate that's a shame.
Hopefully John sorts something out.
I think they're getting rare back in the old country too now.
A lot of people over there re powering old buses with cummins
Ben Summers
Old vehicles are like that-they take you by surprise.
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