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Collection, Preservation and Display of Old Lawn Mowers

B&S Part Manual Help

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Good morning All, 

I am hoping you can help me find the parts manual for the following engine.. Normally the search on the Briggs and Stratton Support page comes up trumps, but it did not find anything for this engine number.

60702 - 9071 63.

I have attached an image of the number stamped into the casing, in case I have missed something! 

Thanks in advance. 

Scott

Forums

hortimech Fri, 20/11/2020

What you have there is a pre 1965 engine, which has 'model type serialno' instead of the later 'model type code'. So where you have a shown a space in the type, you shouldn't have. I think Wristpin has the big red book, so he may be able to help you with a parts list.

Scott S Fri, 20/11/2020

That is truly amazing! Thank you so much for posting that. 

What is the name of this 'blue book' you have? Are they still available?

 

Thank you again. 

Scott

hortimech Fri, 20/11/2020

It's the Briggs and Stratton parts book, which contained the printed parts lists and was about 8 inchs thick. If you dropped it on the parts counter, the counter used to shake. It was replaced by a micro-fiche system, which used parts lists printed very small on a sheet of clear plastic (I think it was plastic) and they were awful to read, especially if the got scratched, also the bulbs blew on a regular basis.

There was also a red book (sorry I got them the wrong way around), this was to identify replacement engines and short blocks.

By the way, what is your engine fitted to ? as I said it is a very early alloy engine.

 

Scott S Fri, 20/11/2020

Sounds interesting, I bet they are rather rare now, but will still out live the microfiche version! 

The engine is attached to a hayterette that I picked up this morning. Someone appears to have been pretty enthusiastic with a paint brush though. However it is flaking off and underneath appears to be the same colour as the other hayterettes I have, a metallic green colour (the same as the mowers at the back of the attached photo).

I have read on this forum that the original hayterette's were silver/unpainted, but maybe this one is not old enough?

Do you know if there is a magic book out there that describes the paint schemes vs serial number, if not for the mower maybe the B&S engines?

Thanks for your help. 

 

Scott

wristpin Sat, 21/11/2020

The very early Hayterette chassis were unpainted and had Villiers and Clinton engines. I’m not sure, but I believe, that the Briggs Type number identifies the paint finish of the original engine supplied to the Original Equipment Manufacturer ( OEM)

I see that the machine on the left  in the back row has the wind up “ coffee grinder” starter. A good idea at the time but for reliable starting the engine had to be maintained in good condition - particularly valves .  Briggs had another go at a wind up starter system in the 90s or 00s , I forget which. That system used engine momentum to wind up a wickedly powerful spring when the operator presence bar was released to stop the machine. If the engine didn’t fire up the spring would be discharged but could be reloaded by operating a manual recoil rope. As well as not being very reliable for starting the machine it had safety implications when the machine was being worked on and had to be discharged to render the machine safe. Another good idea at the time !!

Scott S Mon, 23/11/2020

The wind up hayterette (1965) cost £45 a couple of months ago. When I picked it up a blue liquid style gasket had been used to seal the head and the valve cover. I removed the carbon from the valves and piston and fitted new gaskets.. It now typically starts on the third attempt, but does not have the starting force the standard recoil would. 

The one to the right of that one in the same colourings is a 1968 and has friction disc and bar style blade setup, that too has had new gaskets, but needs a proper engine re build. It runs well, but it feels quite heavy when you turn it over.

I have stripped and rebuilt and repainted the engine from the 1972 one (on the left) I have, but am struggling to find a suitable paint type and colour for the deck. 
I know there have been numerous posts on here regarding the 'hammerite' style green paint, but was a conclusion reached?
On that note does anyone know the paint type/code/colour for the metallic green of the older hayterettes? 
Lots of questions I know, sorry! 

Scott

In other news the I stripped, cleaned and reassembled the carb on the 1961 hayterette that I picked up on Friday and it started second pull, so was super happy with that.. A bit smokey but I think it has been sat for a good few years. 

​​

wristpin Mon, 23/11/2020

The one to the right of that one in the same colourings is a 1968 and has friction disc and bar style blade setup, that too has had new gaskets, but needs a proper engine re build. It runs well, but it feels quite heavy when you turn it over.

Bar blades and friction discs were typically fitted to local authority machines and did give a different feel on the rope from the normal four swinging blade set up. Usually on Hayterette Professionals with the 5HP Briggs.

 A while back I got involved in prolonged correspondence with a chap that had followed my instructions for a a top end overhaul but was unable to start his machine. It finally transpired that he had not refitted a blade of any sort; surprised that it didn’t snatch back when he pulled the rope.