cliffee
Well-Known Member
Has any one a yanmar 3YM30 with high hours, over 4000 is it still going well, do thay remain reliable any info gratefully received
Yanmar 3ym30
- Thread starter cliffee
- Start date
FullCircle
Well-Known Member
4000 would be a lot, as the engine was introduced about 2004.
Mine has 700 hours, which is quite high for normal use.
Searush
Well-Known Member
Off the top of my head, mine is about 500, but I will have a look at the weekend - don't often check it as it means standing on my head in a corner of the cockpit. Great engine at the moment after about 3-4 years.
cliffee
Well-Known Member
engine hours
its a charter fleet all boats are 5 years old and have done 2500to3500 on this engine so must be good as I believe they have not yet replaced one in 25 boats
its a charter fleet all boats are 5 years old and have done 2500to3500 on this engine so must be good as I believe they have not yet replaced one in 25 boats
Tranona
Well-Known Member
No reason why they should be replaced. This type of usage is the best you can get for a marine engine. Would expect to get 8-10000 hours easily. What kills engines is lack of use, not use. My Volvo 2030 has done well over 3000 hours in a charter boat with no problems and runs as well as when it was new.
Just the same as the comparison between reps cars running on motorways for hundreds of miles a week compared with 3000 miles a year popping to Tescos.
TheBoatman
Well-Known Member
I do
I hold a position in a YC that means that I have to look after club boats and I have two boats with Yanmar 3YM30's in and so far they have had no significant problems ~ i.e. still working perfectly.
Peter.
TheBoatman.
I hold a position in a YC that means that I have to look after club boats and I have two boats with Yanmar 3YM30's in and so far they have had no significant problems ~ i.e. still working perfectly.
Peter.
TheBoatman.
jwilson
Well-Known Member
Only 1,400 hours on mine, but no real problems except very occasional overheating with prolonged high revs. Did this from new, improved when Yanmar fitted larger heat exchanger under warranty.
As it's predecessor the 3GM had a good reputation for longevity: I know one at 4,500 hours running beautifully, I see no reason why 4,000+ should be a problem for a properly used 3YM.
Used properly means serviced regularly and worked fairly hard, none of this "... I only run it at 1,800 rpm so as not to stress it" or "....I only use it for three minutes each trip to get on and off the mooring". If you start it run it till it's properly hot, and give it plenty of revs under load at least some of the time.
Searush
Well-Known Member
On the boat now, checked the engine hours meter earlier while it was running - no display! Doh! Another job for tommorrow or Sunday then!
So they are completely unreliable, the hours meter on the inst panel will fail after acouple of years use.
So they are completely unreliable, the hours meter on the inst panel will fail after acouple of years use.
charles_reed
Well-Known Member
3YM20 - 1386 hours; no problems, though I've been putting off the mandatory clean of the exhaust elbow.
My last, a 2GM20 did just under 10,000 hours before piston blow-past led to rear-seal leakage and the cost of rebuild didn't justify retention. Besides it was raw-water cooled.
So I can bear out the 10,000 hour life-evaluation for a Yanmar diesel.
My last, a 2GM20 did just under 10,000 hours before piston blow-past led to rear-seal leakage and the cost of rebuild didn't justify retention. Besides it was raw-water cooled.
So I can bear out the 10,000 hour life-evaluation for a Yanmar diesel.
mikehibb
Well-Known Member
Our 3GM30 has a good 4000 hrs on the clock, and no problems apart from a small air leak after a service (just need to double check an O ring and the separator seal), will get that fixed next trip.
Techy guy that gave it a once over a while back and went out for a run with us says no reason not to get another 4000 hrs out of it.
We do however let the engine warm up before leaving the berth, then run it on load 2000+ rpm for 15-20 mins before we put the sails up. We always like to take the sails down early on return so that we can run on load for 20 minutes or so rather than a 5 minute burst back to the marina, often will circle the bay a couple of times just to make sure.
Usually each time we stay with the boat we end up with at least one windless day, so we go out for a motoring day.
Techy guy (and most on here) say that they like and need to do a good run, so that is what we do.
Techy guy that gave it a once over a while back and went out for a run with us says no reason not to get another 4000 hrs out of it.
We do however let the engine warm up before leaving the berth, then run it on load 2000+ rpm for 15-20 mins before we put the sails up. We always like to take the sails down early on return so that we can run on load for 20 minutes or so rather than a 5 minute burst back to the marina, often will circle the bay a couple of times just to make sure.
Usually each time we stay with the boat we end up with at least one windless day, so we go out for a motoring day.
Techy guy (and most on here) say that they like and need to do a good run, so that is what we do.