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Collection, Preservation and Display of Old Lawn Mowers

Atco Deluxe B14 Delivery plate.

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Hi, thanks for accepting my request to join the club! I have an early 80's Atco Deluxe B14 which I have been looking after and using regularly since it was left to me by my late Grandad. Unfortunately the delivery plate on the machine is badly corroded, and after searching the internet I have drawn a blank.

I am lucky to have all the original paperwork/ diagrams so have the part number needed (L09385)

Is there anywhere making pattern parts for these do you know?

I've also got another problem to sort out, and that is a sheared exhaust manifold, which I plan to drill and re-tap. Am I right in thinking these manifold screw threads are 1/2" BSP? And are they straight or tapered threads?

Any help appreciated, thanks in advance.

Forums

wristpin Sat, 11/03/2017

BSP yes,  but  Straight or tapered? - interesting question, never thought too much about it. Early machines had a back nut which would suggest both male and female straight threads but later machines appear to use a tapered male into a straight female. (straight as in parallel, you understand). Never tried "drilling" one out but I have successfully removed sheared stub pipes by cutting a longitudinal slot in them with a piece of hacksaw blade and then collapsing the sheared end away from the threads in the block. It does leave a cut mark in the block threads but that has never seemed to cause any bother.

Re your throw plate - have you tried Jon Cruse at the Hailsham Mower Centre ?

 

sixpot Sun, 19/03/2017

Well I took the engine in to work and successfully drilled and re-tapped the manifold stub.

 

I decided to make a new throw plate using the old one as a template. I made the new one from 16swg sheet steel, as this is a lot stronger, and it negates the need to add the swages as per the original. I was very pleased with the outcome, and it fitted perfectly first time!

 

I changed the oil and put a new spark plug in, and changed the air filter for a new one, cleaned out the fuel tank, and added new fuel to it......

...Despite my best attempt, it would not start, and I diagnosed there was no spark present, so I decided to have a look at the electronic ignition.

On trying to remove the flywheel disaster struck - The nut sheared off the end of the crankshaft! it must of been weakened previous, as it took very little torque to do so...

So fast forward a few days, and I had found a Atco B17 DeLuxe on eBay - quite local too! so I decided to buy this mower to use for the replacement engine. I paid the grand sum of £10!! probably the best eBay bargain I've ever had!

I'm now in the process of swapping some bits around to hopefully get a fully working machine.

wristpin Sun, 19/03/2017

On trying to remove the flywheel disaster struck - The nut sheared off the end of the crankshaft! it must of been weakened previous, as it took very little torque to do so...

Not sure  what engine you have but it is likely that the crankshaft and flywheel nut have a left hand thread. I've only ever seen them sheared as a result of excessive torque - in the wrong direction.

Two different electronic units have been used - inductive and capacitive, using different flywheels  and stators - they have to be changed as a pair. A sure sign of failure or impending failure is any separation between the hard plastic case of the coil and the potting material containing the coil windings and electronic components. once that separation occurs, failure is almost certain to follow.