I would like to tell you a little story about my Perkins 4-108. Around two years ago it was time to either repower or rebuild the old leaking motor
I started by doing research
online to weigh my options. The first thing I learn was that at the time most people that did repower went with either a yanmar
39hp or a Beta 38hp, I found that new Yanmar's ran around $9,998.00 with the gear
drive and a Beta was about $1,000 cheaper with either one I would have to change the prop.
I then looked into rebuilding the motor, I have never rebuilt a motor before so I knew I would have to find a place to have it rebuilt or buy a rebuilt motor. The prices I found to have the motor rebuilt was close to $5,000 and the price
for a replacement rebuilt from Transatlantic diesel
was around $8,000. What I found was a rebuilt Perkins 4-108 from Jobbers inc. out of PA that claim to have been rebuilding motors for 60 years the Price from them was $5,500 plus core
I placed my order with Jobbers inc. and received the motor within 4 weeks when the motor arrived it looked very nice but I was very confused due to the motor had glow plugs, after contacting them I was told the motor came out of a front end loader but was told it would not matter.
After I had the motor installed and the first time to run I was shocked to learn the Head
had a crack in it, I was on the Phone
so fast contacting Jobbers inc. they in turn found a head
on Ebay and had it drop ship to me in Florida
, After replacing the head witch now did not have glow plugs I was ready to run the motor. Boy was I shocked to learn the Motor had 5 psi Oil pressure, well time to pull the motor again just to find that the wrong Oil Pump was installed.
I then had the motor back in and running, alittle white smoke but not bad, I figured it was in fine tuning so after a few days I take the boat out for a test drive. Oil psi, temp, Volts all looked great I spent about 6 hours playing on the river.
Two weeks later I still have light wight smoke but decide to give it a chance to break in some before I address this more.
I set off for a trip north but after 18 Miles the motor dies and I found a marina and get docked over the next few days the motor would start fine and run fine at the dock
but would die on its face under a load away from the dock
so I decide to call in a pro ( L&J Diesel
Services) out of Jacksonville
FL. to come take a look. the service
man comes and spends 4 hours working on the motor and tells me the Injector pump
fell apart and with the other problems I told him about he thought the motor needed to be pulled out again. this was done a week later and sent to L&J's shop for the repairs
After 6 weeks and another $2,500 I received the Motor back and told the light white smoke would go away on its own and the motor ran fine.
This is now 6 moths and over $10,000 for this rebuilt motor, the motor was installed again running great at the dock in gear
shifting. I then take the boat out and wow to dies again. i return to the dock and call L&J to be told it has to be something on the shaft or in the transmission
hoping for the cheaper of the two I get a driver to go check the shaft for rope
or anything but nothing was found. I found it hard to believe that it could be the transmission
but pulled the motor and transmission and took it to Case Transmission Jacksonville
FL. and ask him to check it.
At this same time my wife was in the hospital so I ask him to call me if he had found anything, I did not hear a word from him for a week so after placing a call to Case I was told the transmission was ready to be picked up. I was so confused at this point I go the next day to pick up the transmission while there I ask what was found wrong and was told nothing but he decided to rebuild it because of the problems I told him about. it was another $2,300.
At this point everything is installed and I do the same at the dock test and things seam fine, I take the boat out for a test and after 3 hours the motor dies again but this time it will not restart. I return to the dock and start checking what could be wrong as you can hear the starter turning over but the motor is not cranking, I first think it is the starter not kicking in so I remove it and have it rebuilt for $195 after reinstalling it the motor still would not crank over but the starter was spinning I again remove the starter and find the flywheel will move by hand as I have not pulled the motor back out yet I am not 100% sure if the Flywheel bolts broke or why but this is where I am right now.
So after all that I would say buy a new motor and have it installed.