replacing a vire

Slinky Spring

Slinky Spring

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I have been told that a particular small diesel engine will fit the mountings and space left after removing an old vire 7hp. Does anyone know which engine this might be. Would prefer not to have to alter shaft and mountings if this were possible.
Ian Reid

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If you go here:

http://gofree.indigo.ie/~vire7/

You can find in the Operators manual a diagram of the Vire engine with dimensions such as width between mountings (W) and height (H) of engine mounting lugs above the centre line of the prop shaft (allow also for flexible mounts if used).

If you then look at similar diagrams for all the small diesels you are interested in you can calculate W and H for them. Any that are the same for the Vire will fit the mountings (plus or minus the adjustment possible on the mountings).

I doubt many will have a W measurement the same as the Vire is very narrow compared with modern diesels. But what you may be able to do if, say, your Vire is mounted on vertical grp bearers with steel angle bolted between them, is move the steel outside the bearers instead of inside.

If you PM me I will send you some pics that might make this clearer.



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If you go here:

http://gofree.indigo.ie/~vire7/

You can find in the Operators manual a diagram of the Vire engine with dimensions such as width between mountings (W) and height (H) of engine mounting lugs above the centre line of the prop shaft (allow also for flexible mounts if used).

If you then look at similar diagrams for all the small diesels you are interested in you can calculate W and H for them. Any that are the same for the Vire will fit the mountings (plus or minus the adjustment possible on the mountings).

I doubt many will have a W measurement the same as the Vire is very narrow compared with modern diesels. But what you may be able to do if, say, your Vire is mounted on vertical grp bearers with steel angle bolted between them, is move the steel outside the bearers instead of inside.

If you PM me I will send you some pics that might make this clearer.



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PS

Sorry for double post - don't know my own strength

The BMW 7hp (I think only available secondhand) may be small enough to fit.

Many Tridents were fitted with Vire 6s and 7s and the most common replacement is the Yanmar 9hp. I put a Beta 13 in mine.

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My boat originally had a Vire which was replaced by the previous owner with a Yanmar 1GM7. The 1GM10 has the same external dimensions, I believe. I don't know if the bearers were replaced at the time, but they looked like they'd been there for a long while. I do know that the engine cover is no longer as it once was, so the vertical or other dimensions may differ.

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Hi Ian
Check the "Wanted" section of this Forum, there is a chap searching for a Vire piston, you may do business.
Regards
GrahamSC

<hr width=100% size=1>Never recovered from loss of Tot, 1974
 
I am just finishing the installation of a Beta 13.5 replacing a Vire 7. It did need sheet steel bolted on top of the original bearer but went in very well, if a rather tight fit.

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