Stu c
New Member
Hi have just bought a Moody 34/6 the engine is a Thorneycroft T80 would I need metric or imperial spanners? THANKS
Thorneycroft T80
- Thread starter Stu c
- Start date
coopec
N/A
I think you'll find the Thornycroft T80 is a re-badged Mitsubishi 35hp diesel? Therefore it should be metric.
coopec
N/A
I believe a good set of metrics will be fine for metric as well as SAE
Can you use metric sockets on standard bolts?
While car and truck maintenance seems to lead the way on the transition from SAE to metric measurement standards for fasteners, and therefore the sockets used to tighten and loosen them, these same standards are used on virtually all bolt fasteners commonly distributed throughout the world.
https://www.hunker.com/13415933/what-is-the-difference-between-sae-metric-sockets
Can you use metric sockets on standard bolts?
While car and truck maintenance seems to lead the way on the transition from SAE to metric measurement standards for fasteners, and therefore the sockets used to tighten and loosen them, these same standards are used on virtually all bolt fasteners commonly distributed throughout the world.
https://www.hunker.com/13415933/what-is-the-difference-between-sae-metric-sockets
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Stu c
New Member
Thanks didn’t realise it was a Mitsubishi.
colind3782
Well-Known Member
I think it's the same engine as my Sole Mini 34 which is based on a Mitsubishi K4D so metric throughout.
Graham376
Well-Known Member
Yes, Mitsubishi K4D . Metric but a mixture of threads coarse and fine.
Stu c
New Member
Thanks
PaulRainbow
Well-Known Member
You are mistaken. If the engine in question had imperial nuts and bolts a metric socket set would not be good enough. Some sockets would be close enough, but there would be some bolts that could not be undone with a metric socket set. For instance, one of the most common imperial bolts on an engine is 5/16" which needs a 1/2" socket, the metric version would be M8, which needs a 13mm socket. A 13mm socket will slip on a tight 1/2" bolt and a 12mm one will not fit over it.
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coopec
N/A
I am puzzled you say that. I didn't mention "sockets" as Stu c was referring to "spanners"
If the motor is a Mitsubishi then surely the nuts and bolts would be metric?
If I had a Mitsubishi motor I would carry a set of metric spanners but I wouldn't go to the expense of buying a set of Imperial spanners in case I came across an Imperial nut/bolt elsewhere on the yacht.
PaulRainbow
Well-Known Member
Doesn't matter if it's sockets or spanners and i'm perfectly aware of what the engine is, i've worked on several of them, very common here.
You said "I believe a good set of metrics will be fine for metric as well as SAE"
I have pointed out that you are mistaken, accept that and move on.
coopec
N/A
As we know the Thornycroft is metric but if you needed Imperial as well for some reason then maybe this is the way to go?
colind3782
Well-Known Member
A metric equivalent may get you out of an Imperial jam and vice versa but if you need Imperial tools, get Imperial tools. If you need metric tools get metric tools. If you need both, get both.
I wouldn't dream of using metric tools on my classic bike or my aircraft and I wouldn't dream of using Imperial tools on my boat.
That's all I have to say about that.
I wouldn't dream of using metric tools on my classic bike or my aircraft and I wouldn't dream of using Imperial tools on my boat.
That's all I have to say about that.
Stu c
New Member
Hi thanks I have bought both sets just in case I also have metric sockets at home .
Stu c
New Member
Hi thanks I now have both for the cost it’s not worth worrying about.
Stu c
New Member
Thanks have bought both.
coopec
N/A
That's good.
I'm lucky that I inherited Dad's extensive tool collection which would be mostly Imperial and that's fine as I have a Perkins engine. I'll be taking a bare minimum (without doubling up) as the extra weight concerns me.
But how much mechanical work can you do on a boat? Replace a raw water pump impeller, replace "V" belts, bleed the fuel system, maybe replace a starter motor?
Maybe I'll start a thread to find out what sort of spares people carry on their boats.
Graham376
Well-Known Member
How much work can be done depends on competence of owner, some don't know where the dip-stick is, others will tackle anything. I'm too tight to pay for work I can do myself so keep a comprehensive tool kit on board. A thousand miles away from home, I had to strip the engine after rings gummed up. Only tools I was stuck for were ring compressor, bore honer and valve spring compressor to fettle head when off but local engineering shop had those.
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coopec
N/A
Many, many moons ago I stripped down the motor of my car and put it back together again but it wouldn't start. My Father had a go at starting it but no luck. In desperation Dad enticed the local motor mechanic to come and look at it for me.
The mechanic tried to start it but it just coughed and spluttered and back-fired. After about ten minutes he asked did I have the distributor out. (I confirmed I had) He then asked how I put the distributor back in. I was puzzled as to why he would ask such an obvious question so I told him I just poked it in that hole there. (The poor mechanic went berserk). Now I leave major mechanical jobs to the experts. These days I get my Diesel Fitter Son to sort out mechanical problems.
I would never attempt anything major on the engine while at sea so I will just have basic SAE hand tools, 18V power tools, bolt cutter, stillsons, crescent adjustable (X3), multi-grips and long-nose pliers.
The mechanic tried to start it but it just coughed and spluttered and back-fired. After about ten minutes he asked did I have the distributor out. (I confirmed I had) He then asked how I put the distributor back in. I was puzzled as to why he would ask such an obvious question so I told him I just poked it in that hole there. (The poor mechanic went berserk). Now I leave major mechanical jobs to the experts. These days I get my Diesel Fitter Son to sort out mechanical problems.
I would never attempt anything major on the engine while at sea so I will just have basic SAE hand tools, 18V power tools, bolt cutter, stillsons, crescent adjustable (X3), multi-grips and long-nose pliers.
