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Old 02-18-2013, 06:54 AM   #21
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............... Be sure there is no water standing touching the oil pan.
If I had standing water in my boat touching the oil pan, I would be very concerned and not just for the engine.

The design of a boat is intended to keep the water on the outside.
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Old 02-18-2013, 08:39 AM   #22
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My 1991 Perkins 6.354.4 has zero hours now she's been fully stripped and rebuilt with genuine Perkins parts and has an alloy sump pan. I'm stoked after reading this thread. Wooh Hoo :-D

Just gotta finish building the boat now :-/ lol
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Old 02-18-2013, 08:42 AM   #23
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30 yr old Volvo MD17 36hp raw water cooled with 2200 hrs.

Never too late to add a FW cooling loop, and add a HW heater for fun.

These engines are great , but suffer from the same cheap crappy oil pan construction as CAT .

Be sure there is no water standing touching the oil pan.
Yes FF- I may consider going with a fresh water loop. She already has a HW heater. And I will make sure her bottom's kept dry. With some luck she might see her 50th birthday.
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Old 02-18-2013, 09:10 AM   #24
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Volvo KAD44P, 3.6 liters, 260 hp, WOT is 3900 RPM. Electronic engine and shifting controls, 24-valves, turbo, aftercooler, and even supercharger. Duo-prop sterndrive.

5100 hours since launched in 1998. Runs like a top, still with very little smoke. We can cruise at 16-19 knots, 3000-3400 RPM, but since about 2000 hours we've run just above hull speed, 6-6.5 knots, 1300-1400 RPM, 90% of the time.

As said earlier, not over-propping is critical. Sterndrive is the weak point on this one.
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Old 02-18-2013, 01:05 PM   #25
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My 1991 Perkins 6.354.4 has zero hours now she's been fully stripped and rebuilt with genuine Perkins parts and has an alloy sump pan. I'm stoked after reading this thread. Wooh Hoo :-D

Just gotta finish building the boat now :-/ lol
Hendo...did you have the crankshaft main journals ground? That is a Perkins weakness. I know of several Perkins engines that were rebuilt (by reputable dealers) with regrinding and the longevity is not so good.
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Old 02-18-2013, 03:50 PM   #26
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Original 1977 Perkins 4.236 85 HP naturals with 2700 hrs on the hour meter. I've owned the boat for 5 1/2 years and have added 550 hours to the meter in that time.

No glow plugs, but they start right up in cold or warm weather. They smoke a bit on cold startup, but clear up nicely when they warm up.

Failures have been very few. A few years ago I had to replace the stbd exhaust manifold at $1600 and both exhaust elbows. My stbd water pump started leaking at the shaft seal recently and is in the pump shop now for rebuild at $65 for the seals and $90 labor.
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Old 02-18-2013, 10:39 PM   #27
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my Volvo mechanic talked me into re-powering at 4500 hrs on the original TMD40s. I sold them to a commercial fisherman who planned to run th ecr*p out of them for many years to come.
My re-power was with 1500 hr TAMD41s, on which I now have 3000 hrs. Same mechanic says I will not live long enough to see a major overhaul due to hours. That never rules out a catastrophic failure, that any engine can suffer, regardless of hours.

I was at a remote generator site on a mountantop that was inaccessible 6 months of every year. Deutz diesels, with scheduled overhauls at 30000 hrs and scheduled replacement at 60000. They had never had any catastrophic failures, never needed to advance their scheduled refit.
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Old 02-18-2013, 10:59 PM   #28
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I was at a remote generator site on a mountantop that was inaccessible 6 months of every year. Deutz diesels, with scheduled overhauls at 30000 hrs and scheduled replacement at 60000. They had never had any catastrophic failures, never needed to advance their scheduled refit.

Here in Alaska we have mountain top microwave sites that run on the Lister TR series air cooled engine. They typically get around 70,000 between rebuilds, based on dozens of sites in service.

I designed the propane generators for the microwave sites owned by my last employer. (we could not use diesel because of enviromental concerns on the tundra)

I used an Arrow industrial engine running at 1200 RPM turning a 6 pole Marathon generator end. Part of the beauty of that paricular spark fired engine was that its designed to run on produced gas from oil wells. The engines typically run 24X7 for over a decade between full overhauls, although typical head replacement is every three years or so.

I do not work there anymore but maintain a very friendly relationship. We're now well into the third year of operation with no failures. Change the oil every three weeks, change the spark plugs and adjust the valves every other oil change.
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Old 02-19-2013, 12:00 AM   #29
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2 Volvo tmd41As from 1988 with 1900 Hrs on them and they are still running strong and look good too. Poe[ple bad mouth Volvos for spares, But the more i work on mine the more i am impressed with the design and build quality.
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Old 02-19-2013, 12:32 AM   #30
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Cummins 555, 1981 vintage and 1950 hrs when pulled. They always started instantly from cold. PO seemed to have little issue with them, just one turbo replaced after exhaust elbow failure, and one heat exchanger replaced. He loved them. Would have been happy enough to keep them, but I had to remove them to replace leaking fuel tanks. Parts are getting hard to find and expensive for the 555's, so I took a long term view and re-powered with JD. Sold the pair of Cummins to a guy who is warehousing them, for parts for the future......
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Old 02-19-2013, 01:16 AM   #31
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Original 1977 Perkins 4.236 85 HP naturals with 2700 hrs on the hour meter. I've owned the boat for 5 1/2 years and have added 550 hours to the meter in that time.
"Working" about at the same rate. Reached 200 hours after 20 months on the JD 4045. Goal is to double that rate.
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Old 02-19-2013, 01:44 AM   #32
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For every hour of engine run time, I probably enjoy another 5-6 hours of fun onboard. Love my time fishing at anchor and cruising with friends!
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Old 02-19-2013, 01:55 AM   #33
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For every hour of engine run time, I probably enjoy another 5-6 hours of fun onboard. Love my time fishing at anchor and cruising with friends!
Yeah, for every day "running" spend two days on the Coot berthed.
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Old 02-19-2013, 05:21 AM   #34
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Hendo...did you have the crankshaft main journals ground? That is a Perkins weakness. I know of several Perkins engines that were rebuilt (by reputable dealers) with regrinding and the longevity is not so good.
Nope. The only machining was on the head mounting faces. :-) thanks for the tip tho ;-)
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Old 02-19-2013, 10:25 AM   #35
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Mark wrote;

"Yeah, for every day "running" spend two days on the Coot berthed."

and ""Working" about at the same rate. Reached 200 hours after 20 months on the JD 4045. Goal is to double that rate.

To do that Mark you better stop that maintenance and keep on trawl'in.
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Old 02-20-2013, 12:16 AM   #36
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[QUOTE=Hendo78;135520]My 1991 Perkins 6.354.4 has zero hours now she's been fully stripped and rebuilt with genuine Perkins parts and has an alloy sump pan. I'm stoked after reading this thread. Wooh Hoo :-D

Just gotta finish building the boat now :-/ lol[/QUOTE
].............Hendo thats funny.....Most build the boat first then the motor but not you mate, you build the motor then the boat............cant wait for the smoke and float test.........
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Old 02-20-2013, 01:18 AM   #37
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Lol most would have thrown a match at her too lol
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Old 02-20-2013, 08:35 PM   #38
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Lol most would have thrown a match at her too lol
Yep, was a good thing what you did bringing the old lady back to life. I just can't wait to see her kick up her heels!
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Old 02-20-2013, 09:31 PM   #39
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Yep, was a good thing what you did bringing the old lady back to life. I just can't wait to see her kick up her heels!
Same here mate ;-)
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Old 02-21-2013, 05:55 PM   #40
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Same here mate ;-)
Hummmm...I'll bet she will take to the water with the beauty and grace of a gifted ballerena. I'd put money on that
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