Engine, gearbox and prop questions
Posted: Thu Apr 27, 2017 12:59 pm
Hi all. We are restoring a 30 foot wooden fishing boat built in 1900 and we are a charity. We are at the painting stage and are now getting to engine and electrics.
It was fitted with this Thornycroft LT120 120HP (Ford based), Gearbox Borgwarner 2:1.5 (we think) and would like some info from your members collected knowledge.
We have had the engine running and you can see lots of detail on http://www.floatourboat.co.uk.
Picture links, https://drive.google.com/drive/folders/ ... sp=sharing
Looking at the first picture a we aren’t sure what these drain pipes marked A and B are for, they come out into a union and are a very thin tube going down in to drip tray. A comes out of the injector pump and B from the side of cylinder head.
Also in the side of the engine is a wooden plug C which goes into a hole with a dog in the bottom. If it was a petrol engine I would have said a distributor but obviously not? Two more pics as well.
Gearbox
We think this is hydraulic drive because you can turn outlet flange without engine. We know it needs an oil cooler and assume it goes to the two sockets marked a and b, does this cooler normally go in the external water feed before the engine oil cooler and engine heat exchanger? Or are there air radiator coolers?
With this sort of gearbox does it matter whether the prop rotation is left or right as long as the gear lever is mounted correct way? I assume the gearing is the same forward and reverse.
Anymore comments or information on this would be much appreciated.
Chris
It was fitted with this Thornycroft LT120 120HP (Ford based), Gearbox Borgwarner 2:1.5 (we think) and would like some info from your members collected knowledge.
We have had the engine running and you can see lots of detail on http://www.floatourboat.co.uk.
Picture links, https://drive.google.com/drive/folders/ ... sp=sharing
Looking at the first picture a we aren’t sure what these drain pipes marked A and B are for, they come out into a union and are a very thin tube going down in to drip tray. A comes out of the injector pump and B from the side of cylinder head.
Also in the side of the engine is a wooden plug C which goes into a hole with a dog in the bottom. If it was a petrol engine I would have said a distributor but obviously not? Two more pics as well.
Gearbox
We think this is hydraulic drive because you can turn outlet flange without engine. We know it needs an oil cooler and assume it goes to the two sockets marked a and b, does this cooler normally go in the external water feed before the engine oil cooler and engine heat exchanger? Or are there air radiator coolers?
With this sort of gearbox does it matter whether the prop rotation is left or right as long as the gear lever is mounted correct way? I assume the gearing is the same forward and reverse.
Anymore comments or information on this would be much appreciated.
Chris