surfbum
New Member
Hi .Can anyone tell me which starter battery i need for a yanmar engine please .My boat is a Hunter 265 ranger.
Cheers Keith
Cheers Keith
yanmar battery
- Thread starter surfbum
- Start date
pvb
Well-Known Member
Any small car starter battery would do the job.
surfbum
New Member
Thanks pvb. I thought so ,but just making sure.
jakeroyd
Well-Known Member
Measure the Height, Width and Depth of the current battery and also note where the positive and negative terminals are positioned. This can vary on some batteries.
Look , obviously, for a battery of the same dimensions.
Once you have found one of the correct size, look and see if the old battery states the CCA (or Cold Cranking Amps) on it and also the battery capacity.
For example the CCA might be some ting like 400 Amps and the capacity might be something like 100Ah (Amp Hours).
Then as pvb says , any battery with the observations made above , will do the job.
Look , obviously, for a battery of the same dimensions.
Once you have found one of the correct size, look and see if the old battery states the CCA (or Cold Cranking Amps) on it and also the battery capacity.
For example the CCA might be some ting like 400 Amps and the capacity might be something like 100Ah (Amp Hours).
Then as pvb says , any battery with the observations made above , will do the job.
lpdsn
Well-Known Member
My Yanmar 4JH starts reliably with a 55Ah starter battery. Can't remember the CCA off hand (might be 850), you could certainly argue it is more important than the Ah.
But anyway, as others have said, a normal starter battery should be fine.
But anyway, as others have said, a normal starter battery should be fine.
RichardS
N/A
You don't say which Yanmar you have ..... but my 3YM30s both have a starter battery of 100Ah and a CCA of 860 amps. Smaller engines can obviously manage with a smaller battery and might not have room in the battery holder for something larger.
Richard
surfbum
New Member
Engine is a 1gm10. I dont have the original battery it was on charge in the garage but some passing scrap men/travellers helped themselves to it.
CCJ
Well-Known Member
surfbum
New Member
pp9 ?.
RichardS
N/A
Porthandbuoy
Well-Known Member
Best bet is to measure the internal dimensions of your battery box (assuming you have one). Not much point in buying smaller if it's going to rattle around, and if it's also supplying lights, radio etc the extra Ah won't go amiss.
Topcat47
Well-Known Member
I always recycle my service battery to the engine start and replace the service Battery. Currently it's an 9 year old Solent 70Ah, curtesy of Furneaux Riddel in Pompey. I have had ones as small as 50Ah. I've started the engine quite happily on an old bike Battery from a 2004 Bonneville. Once running, your alternator will soon top it up. The only reason I wouldn't keep the bike battery as an engine start is that it couldn't cope if the old B****r was reluctant to fire. Pick up a Maplin car Solar cell while they're still trading and it'll keep it topped up.
lpdsn
Well-Known Member
I'm not even sure one of my 180Ah domestics could put out the same CCA as the cheap small engine starter battery. Probably won't be able to when it is too knackered to serve as a domestic battery. Starter batteries aren't expensive if you buy them from a local industrial-estate-based auto-factors rather than a chandlers, so hardly worth accepting the risk of not being able to start the engine to save £50.
surfbum
New Member
Thanks lads.
I have a 10 watt solar panel that was charging it ,that was the only thing they didnt steal. As regards measuring the battery tray ,the boat is down in Mylor and I am in east yorkshire.I wish i had taken more notice of it when i left it on charge. But as you say any car battery will start it.
I have a 10 watt solar panel that was charging it ,that was the only thing they didnt steal. As regards measuring the battery tray ,the boat is down in Mylor and I am in east yorkshire.I wish i had taken more notice of it when i left it on charge. But as you say any car battery will start it.
blackbeard
Well-Known Member
The engine start battery for my Yanmar 1GM10 is a car type battery of 40 Ah capacity and 440 (or thereabouts) cranking amps and it's perfectly adequate, but I might have used the usual 80 Ah leisure battery if I had enough room for another one.
JumbleDuck
Well-Known Member
From memory - I am snowed into Edinburgh, a hundred miles away from the paperwork - the 1GM10 starter motor is 1kW, so needs about 80A. In starter motor terms that's pretty piddling. I started mine with an old 063 car battery, borrow from my Triumph Herald, which now starts my Nanni N2.14 equally happily.
surfbum
New Member
I have a spare from my mgb ,may try that .
JumbleDuck
Well-Known Member
Think of it this way ... you have a 318cc engine with twice the compression ratio of a petrol engine (-ish), so it will require about the same power to turn it over as a ~600cc car engine. Not quite a PP9, but anything intended for a 2CV upwards should do just fine.
lw395
Well-Known Member
A 600cc single cylinder car engine? Not really quite fair as the diesel is a smaller bore I suppose.
A typical motorbike battery will do it, but only when it's new.
Get something comfortably spec'd, then it will still start the motor when it's 5 or more years old.
The battery in my diesel car is spec'd at 700 CCA. I tested the battery, it's only good for about 150A, it still starts the car. Even this weather, but it is 9 years old and it's time for a new one.
JumbleDuck
Well-Known Member
I think it should be roughly the same ... work done is volumetric flow rate x pressure difference. Of course only having a single cylinder means the demand will be more irregular.
Or if you were wondering about the small capacity, Smart Fortwos use engines from 598cc to 1L, and historically as well as the 2CV there were the various Reliants from 600cc to 848cc and also the small diesel quadricycles, like Aixams, which French teenagers like. I had an 848cc Reliant Rialto three wheeler (wheeeeeeeeeeee) which used the same titchy battery as a Smart diesel.
Overall, though, any car battery should have no problem with a 1GM10. I bought the 063 currently starting my Nanni in 1998, I think. Might have been 1999.