Lynx II, hull # 4225

[Mike Cecil]

Hi Rick,

I have only a workshop manual and stowage diagram for the Lynx 3 & 3*, so I'm simply amazed that the Lynx parts list you have does not contain the prefix and/or suffix for each part listed in the parts tables - every Ford parts list I have, from the GP to Master Parts Lists of various dates, lists the full spec in the tables (but not on the diagrams), hence my assumption that the Lynx list would be the same.

Just goes to show there is always something new to learn!

Mike

[Mike Cecil]

Hi Peter,

79-8505 is listed as a 'Housing Water Pump, Right Hand', for the V8 fitted to a 1.5 ton COE chassis with cab over engine cab. The 1944 master parts List shows that this is the part's only application for vehicles supplied to US Forces (it may have other applications). 79-8506 is the 'Housing, Water Pump, Left Hand' for the same application.

The pulley that was fitted to those pumps was the 79-8509B. Again, that was that pulley's only application.

You probably have one of the few V8 water pump housings that was shorter in depth than the usual - maybe look at a couple of pumps from a CMP and see if they are a deeper casting and will line up OK.

Mike

[Lynn Eades]

Going back,
I have looked and there does not seem to be room to manoeuvre on the bottom pulley.
The crank dimensions have generally been (in relation to this problem) the same since 1939
The bottom gear (6306) has had a 48 prefix across all models (it seems) of all relevant Ford V8s up until the reverse cut gear of the 8BA, (in the fifties)
So, to me it's like this:
Front of crank, the gear goes on, the slinger goes on, timing cover on,the pulley slides home.
There's not much you can get wrong in that.(is there?)

I'd like to know why the sheaves of the Lynx are set out further than a std pulley. Of course there will be a reason, but I can't figure it out.
I have a motor with the same timing cover. It has a std two sheave pulley on it.
Is it about the belts clearing that Dizzy box?

Anyhow it seems the answer lies in the pulleys and pumps as deduced.

To add to Mike's effort, the 78C number prefix refers to the bush type (single sheave) pumps and the 79C, refers to the twin sheave bearing pump housings.
For H.Ford to come up with a different part number (C29SR- 8505 and 8506) means those housings were special. Theat may not mean that they wont fit, It might be say, just a better water flow (if you are lucky )
Maybe David H. has hit on the answer? ... and it can be fixed with T16 pulleys? (remember though the part that changed was the housing)

[lynx42]

Originally Posted by Mike Cecil

Hi Rick,

I have only a workshop manual and stowage diagram for the Lynx 3 & 3*, so I'm simply amazed that the Lynx parts list you have does not contain the prefix and/or suffix for each part listed in the parts tables - every Ford parts list I have, from the GP to Master Parts Lists of various dates, lists the full spec in the tables (but not on the diagrams), hence my assumption that the Lynx list would be the same.

Just goes to show there is always something new to learn!

Mike

Well you will have to unlearn that fact Mike, as I only looked at the diagram and not the numbers page. The prefix is 78C before the diagram part number. So 78C 8509 for the pully and 78C 8504 for the LHS and 78C 8503 for the RHS pump.

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Is the stowage diagram a separate folded sheet, Mike? If so is there a chance of a copy, please. I do have a couple of pages S16 and S17 which show where things go but not a separate sheet.

Regards Rick.

[Mike Cecil]

OK: now it makes sense.

The stowage diagram is a single large sheet: much too big for my little scanner, though.

Mike

[Andrew Rowe]

Back a few years ago you could buy the double roller bearing, complete with shaft, that was longer than the standard V8 water pump bearing from the local bearing shop. To make it work for the standard set-up you just trimmed it down. So maybe you get a couple of these and put your spacer in and put pulley on. It was something like what you mentioned , that had to be trimmed off if I remember rightly, Cheers Andrew.

[Peter Duggan]

Guys,
I went to a local machinist, Tom Wiltse, who has bailed me out on previous occasions. My request was to weld a spacer on the inside of the pulley. He wasn't keen about the idea and proposed machining the pulley sheaves from the inside for half it's width, then machining a two step spacer to the right length and press it into place.
Worked like a charm. The change isn't even visible, and the pulley alignment is spot on. Now to move onto the next challenge.

Peter

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[Mike Cecil]

Nice solution, Peter: neat job, no delay finding alternative parts.

Well done.

Mike

[super dave]

Nice job on the pulley mod