I have a Perkins 4.108
with a Hurth transmission
in my 1975 Westsail 32. The engine
was installed in 1987 by a previous owner. It was NEW when installed, as was the Hurth transmission
. It's my understanding that the transmission was overhauled once... probably about 20 yrs ago.
I've been having some issues with shifting lately and I've decided to pull the tranny (with the boat
in the water) and do another rebuild
. I have two dilemmas to deal with...
1) I am on Grand Bahama Island, in the aftermath of Hurricane
Dorian and it is impossible to have things shipped here. I have a friend coming over in about a week, however, if I can get the rebuild
kit shipped to him in time.
2) The Hurth case is missing the metal plate providing model and drive ratio information. My best guess is that the tranny is an HBW 10, but I can't be certain. None of the POs have the installation
info, nor remember the model. Also, the installer and later the rebuilder are both out of business. Assuming it is indeed an HBW 10, I also need to know if it is an "Early Model" or "Late Model".
As indicated, my best guess is that the tranny is an HBW 10. But when looking for rebuild kits, there are kits listed with "Early" and "Late" version designations. Unfortunately, none of the sellers seem to know in what year the HBW10 changed from "Early" to "Late". The kits are only somewhat different, but the main gaskets are completely different.
I could order the "Late Model" kit, which has two more steel clutch
plates than the "Early Model" kit (8 vs 6). But I would also have to order both main gasket
kits. Since I won't be able to ship the unused parts
back within the specified timeframe, I would be throwing money
down the drain. And these parts
are not cheap!
Does anyone know the approximate year that the HBW 10 "Late Model" was introduced? With enough leeway, I can assume that my installation
was one version or the other (disregarding the possibility of having been "old stock").
I have photos of the tranny, but most say it is impossble to identify for sure, without first removing it and getting some internal dimensions. I have a PDF online with photos of the tranny, just in case someone out there is smarter than all the rest.
Thank you in advance, for any help or suggestions. I'm on a tight time crunch to get the parts ordered in time to have my friend bring it over!