Winch Engine Broken

Those who operate vintage engines like the olds 455 and the Chevrolet 454 should be aware that these types of engines from the 1960's to the 1980's employed a hydraulic flat nose camshaft and tappet followers which requires a high heavy metal component in their lubricating oils (Zinc phosphate etc) these oil formulas have been mostly replaced by ecologically safer oils which do not provide the lubricity and extreme pressure additives to allow these valve train designs to survive any length of time at all. Failures can occur in hours not years. an expensive stopgap measure is to use one of several race engine blends of oil, or replace the valvtrain with a full roller bearing configuration. the replacement option is really only viable if you need to keep a valuable classic car running, as retrofit roller valvetrains can run into the thousands of dollars.
A much more economical option is to rework your winch to use a commercial diesel or modern truck engine, while more work now, using 50 year newer technology will pay dividends for years to come.
Best wishes,
Scott

Thank you very much to those who kindly replied to my post.

All of your info are so much appreciated.
Since the engine fault was last week and we are still checking if there is

any engineer who can repair this badly damaged engine with hole.

Our club may buy a second hand one, but taking your advice, we will
consider more options.

Again, I am very pleased to receive many good advice from overseas.
I will update on our club's decision.

Ueda

Hello Ueda

you also may consider a complete different engine. Our club in northern
Germany uses a tost winch, too and in the 1980ies fitted a Mercedes Benz
330 HP Turbo-Diesel truck engine which works fine up to now. No Gearbox
required, just the torque converter between engine and drive shaft. You
may have to change the gear transmission ratio to adapt it to the
different revolution speed range and do some more minor changes. I could
help with construction schemes - hope I have found the correct terms, my
english is somewhat poor :-/

regards

Werner

The suggested options involve expensive shipping.

Would there be any Japanese engines, perhaps with transmission, that could
be
fitted? That would make parts and maintenance much simpler.

A diesel truck engine could be great.

On Saturday, July 8, 2017 at 6:23:42 AM UTC-5, Werner Schmidt wrote:
Hello Ueda

you also may consider a complete different engine. Our club in northern
Germany uses a tost winch, too and in the 1980ies fitted a Mercedes Benz
330 HP Turbo-Diesel truck engine which works fine up to now. No Gearbox
required, just the torque converter between engine and drive shaft. You
may have to change the gear transmission ratio to adapt it to the
different revolution speed range and do some more minor changes. I could
help with construction schemes - hope I have found the correct terms, my
english is somewhat poor :-/

regards

Werner

Werner,
We got a similar (identical?) Benz Diesel in the mid-80's together with a modified axle from their test shop for free (Luftsportverein Hameln/Bisperode). The engine and axle still are still in great shape. Not an option for us here in the US and for sure not in Japan.
Herbert, J7

wrote 2017/07/10 at 20:33:

We got a similar (identical?) Benz Diesel in the mid-80's together with a modified axle from their test shop for free (Luftsportverein Hameln/Bisperode). The engine and axle still are still in great shape. Not an option for us here in the US and for sure not in Japan.

may be. What I wanted to say is that it's not too hard to fit another
Type of engine into the tost winch than the original one. Truck (Diesel)
Engines should be available also in Japan, and with some search and luck
affordable ones, too.

regards
Werner