Hurth Synchromatic gearbox dimensions, or manual please!

[ZuidWester]

Hi,

My gearbox has finally given up the ghost and there seems to be no replacement, or spare parts. I'm informed it's the first gearbox Hurth made.

So, I have to replace it, but what with and how much work does this involve? Maybe a Hurth ZF10M Gearbox, or PRM 80 would be a close fit, but I don't have the specs on the old Hurth.
I assume I'll need an adaptor plate unless the specs are the same for the old and new gearboxes. The engine is a BMC 1.5 with a centrifugal clutch.

Any advice appreciated!

 

[Toutvabien]

Lancing Marine, 51 Victoria Road, Portslade, Sussex BN41 1XY, United Kingdom
Telephone +44 (01273) 410025 - Fax +44 (01273) 430290
e-mail data@lancingmarine.com with your name and address
and we will mail you a free copy of our Data Book and 2014 Price Book

These guys know all there is to be knowed about such gearbox matters and will courier you the appropariate replacement, same day if in stock, no relation but very satisified customer.

 

[Caer Urfa]

Hi,

My gearbox has finally given up the ghost and there seems to be no replacement, or spare parts. I'm informed it's the first gearbox Hurth made.

So, I have to replace it, but what with and how much work does this involve? Maybe a Hurth ZF10M Gearbox, or PRM 80 would be a close fit, but I don't have the specs on the old Hurth.
I assume I'll need an adaptor plate unless the specs are the same for the old and new gearboxes. The engine is a BMC 1.5 with a centrifugal clutch.

Any advice appreciated!

You do not say which exact Hurth gearbox you have, IF it is the old Hurth HBW 100 then the ZF 10m will be a 'straight swop' size for size, BUT, there is a very slight gear ratio differance which I found has not been a problem.

However the nearest PRM gearbox you will find will fit, BUT, there is an input/ouput horizontal shaft differance I think about 10mm, so you would have to lift the engine!

 

[ZuidWester]

You do not say which exact Hurth gearbox you have, IF it is the old Hurth HBW 100 then the ZF 10m will be a 'straight swop' size for size,

Thanks for your reply. It's a Hurth Synchromatic. I will have to check if this is the same size as the HBW 100.