Rebuild or repower

[redlegmsg66]

I have a Perkins 4.236 hours unknown multiple leaks still runs ok. Same with Borg Warner Velvet Drive transmission. Installed in boat 1975 neither have been rebuilt previously.

My options are rebuild it in my garage
Purchase remanufactured engine and transmission
Repower with new engine and transmission.
Cost is a concern however safety and reliabilty are number one.

Give me your thoughts as well as your experiences with the three options.

Thanks

 

[Tally Ho]

Read this saga…

A story of the engine that could.... Then didn't…NOW DOES

I have been thinking about how to write this tale of woe. A couple of my friends here at SBO have commented about the drama I have been experiencing with the Perkins 4.107 engine in my 48 year old boat. While it came to me with evidence of abuse, with some normal maintenance and minimal fixings...

forums.sailboatowners.com

You don’t mention if the engine and trans are working now or if you are having issues.


Greg

 

[jon hansen]

Diesel Specialist 920-347-0880. 2264 mid valley drive, de pere, wis

do not compare to john's nightmare in above thread. must have been a retired carnie

they, diesel specialist, keep farm machines running all over the mid west. first class operation. boat engines too. one look at their machine shop and you will understand. top shelf operation.

they do all my work, and have since 1980. major, and minor. work gets done in a timely fashion. drive over and discuss your needs. good people, highly skilled.


joke: what do you know if your perkins engine has stopped leaking oil?

A: your engine is out of oil

modern replacement seals seem to work better.

50th year with my alden this season. 1966 perkins 107, velvet drive tranny.

the boat goes sailing every day in the season.
it fired up this morning, running just fine
family has been sailing out of sturgeon bay since 1853

 

[redlegmsg66]

Thanks for the info. I am familiar with Sturgeon Bay and know Depere fairly well. My wife grew up there. I will definitely give them a call

 

[redlegmsg66]

Read this saga…

A story of the engine that could.... Then didn't…NOW DOES

I have been thinking about how to write this tale of woe. A couple of my friends here at SBO have commented about the drama I have been experiencing with the Perkins 4.107 engine in my 48 year old boat. While it came to me with evidence of abuse, with some normal maintenance and minimal fixings...

forums.sailboatowners.com

You don’t mention if the engine and trans are working now or if you are having issues.


Greg

The engine does run, leaks a lot of oil, seems to not have as much power as it should

 

[dlochner]

Get estimates for both rebuilding and replacing.

Beta engines are based on a Kubota block and are popular choices for repowering. Another choice would be a Nanni diesel. Same Kubota blocks as the Betas marinated marinized by Nanni and painted Blue.

Last winter I purchased a 110hp Nanni from Hansen Marine in Marblehead for about $25K. In 2021 I priced a 33HP Yanmar, it was about $20k. , I only offer these as price points in your considerations. I found Hansen Marine a very easy company to deal with.

 

[jon hansen]

a compression test will be telling
if that's good, fuel delivery is next.
fuel pump rebuild-injectors rebuilt

oil leaks: seals and gaskets can be replaced. there are high quality options available

diesel specialists can come to the boat. they can tell you what you'll need.

next: motor mounts, new is good they do wear

tranny: it's an easy rebuild when they are not blown up. mine was sent to chicago the last time. all good to go. the clutches do wear in time. preventive maintenance is a consideration.
D.S. is a perkins dealer along with 10 other diesel companies they represent. they can do whatever you need.

you can see them from 41. next to the BMW motorcycle dealer. yeah, i have a 2004 r1150r.