Is there a special pilot bushing that I need for my 347? A standard ford 302 bearing or bronze bushing does not have enough relief for the length of the input shaft on my ZF, the cogs on the shaft hit the face of the bushing.
pilot bushing
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With our 4" deep bellhousing and an inverted Pantera transaxle, we do this:
http://www.erareplicas.com/gtman/clutch/pilb_ds2.pdf
It fits in the deep receptacle in the crankshaft.
There's a Pantera owner/machinist named Marlin Jack who lives in central California, and makes oillite pilot bushings specifically for the ZF-into-Ford application. Reportedly these things are terrific. Here's the info:
Pilot Bearing: Oilite Bronze, NONmagnetic, Self-Lubricating $65. ea. plus
$3.85 shipping. Contact Marlin Jack at: pantera1974 at verizon.net
Pilot Bearing: Oilite Bronze, NONmagnetic, Self-Lubricating $65. ea. plus
$3.85 shipping. Contact Marlin Jack at: pantera1974 at verizon.net
I did it another way, put a 10mm spacer between bellhousing and gearbox, gave just enough room for a bigger clutch and thrust bearing as well, Frank
Pat Buckley
GT40s Supporter
As I now remember, I got a bushing from my BMW dealer and machined the outside diameter to fit.....
So you don't use a pilot bushing at all? Inputshaft hangs free?
OT How can you use a bronze solid piece instead of a needle bearing? Won't this cause high friction between inputshaft and crankshaft?
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Jack Houpe
GT40s Supporter
The M1 ZF has a shorter input shaft, the spacer was not necessary for me but most all the US Pantera ZF's had to use the spacer between the bell housing and the block. My problem was the metric shaft on the M1 and US standard on the block so I had to machine a bronze bushing.
