Marshall Water Pump drawing or pattern - Traction-Talk

Chuffyshunter · #1 Post / In Thread 30th June 2013, 08:16 PM

I'm after Marshall Drawing Number 11255, its for a waterpump for an 8 horse TE.

Failing a drawing, a pattern would be great..

PM me any info,

8_10 Brass Cleaner · #2 Post / In Thread 1st July 2013, 08:14 AM

Jack

I have a pattern for a pump for a geared down pump like fitted to my Tractor.

What does your pump look like?

marshall8hp · #3 Post / In Thread 1st July 2013, 08:51 AM

It might be a bit small Hedd. This isn't the drawing number for a geared down pump for an 8hp, that is drawing number 42686.

8_10 Brass Cleaner · #4 Post / In Thread 1st July 2013, 09:44 AM

Quote:

Originally Posted by marshall8hp

It might be a bit small Hedd. This isn't the drawing number for a geared down pump for an 8hp, that is drawing number 42686.

It depends, being geared down in my application the plunger isn't that small. Would be ok on a direct drive on a bigger engine.

The casting fixes on its bottom face.

Chuffyshunter · #5 Post / In Thread 1st July 2013, 10:33 AM

We haven't got the pump as we Need to make a whole new one from scratch, all I know is its an 8hp Single traction engine of 1897.. It's drawing number 11255.. That's all we know.. It's out there, there is a record of it..

8_10 Brass Cleaner · #6 Post / In Thread 1st July 2013, 10:34 AM

Jack

See if the Gainsborough Heritage Society have the drawing, and get a copy.

Chuffyshunter · #7 Post / In Thread 1st July 2013, 10:45 AM

The had the drawing but they have lent it to someone and not got it back.. Therefore it must be out there somewhere.. Just wondered if anyone had a copy or knew where it could be..

marshall8hp · #8 Post / In Thread 1st July 2013, 01:47 PM

The geared down pump on an 8hp has a completely different third shaft RH bearing bracket. It is a massive cast affair and mounts the pump. It has a 2" plunger. It basically isn't possible to fit a geard down pump to an engine that didn't have one, unless you can source the corresponding "combined pump and intershaft bracket".

8_10 Brass Cleaner · #9 Post / In Thread 1st July 2013, 02:56 PM

This is actually the pump off my engine, now on another.

As you can see, the plunger isn't that small.

The tractors have the geared down bit behind the flywheel, the gears drive a crank about the size of an Austin 7 crankshaft in a seperate casing with its own bronze bearings, and thence drives the pump by a connecting rod.

The pump casting itself has a flat bottom, and thus it would be fairly simple to make a bracket up to suit any application, provided of course it is understood the controls etc are handed. A direct drive off a eccentric with suitable throw would be fine.