Kevsco Posted April 14, 2017 Report Share Posted April 14, 2017 Hi everyone, i have a Barruss Shire 40 engine with a PRM gearbox but don't know the gearbox model. There does not seem to be a model number visible . Can anyone help? The oil dipstick has a 13 mm drain plug if that is relevant. Link to comment Share on other sites More sharing options...
Chris-B Posted April 14, 2017 Report Share Posted April 14, 2017 More than likely it will be a prm 260 model @ 2:1 reduction ..... thats the norm Link to comment Share on other sites More sharing options...
Flyboy Posted April 14, 2017 Report Share Posted April 14, 2017 (edited) The Barrus Shire 40 Is normally supplied with a PRM 150 as standard but a 260 was an option at extra cost. I would reckon you have the 150. Edited April 14, 2017 by Flyboy Link to comment Share on other sites More sharing options...
Lord Gadbury Posted April 14, 2017 Report Share Posted April 14, 2017 There should be a plate on the PRM, the customer service is very good from them if you have any difficulties. Link to comment Share on other sites More sharing options...
Rose Narrowboats Posted April 14, 2017 Report Share Posted April 14, 2017 Dipstick is on the port side on a 150, starboard on a 260. Post a picture if you are still unsure - plenty of people here will be able identify which one it is. hth, Anthony Link to comment Share on other sites More sharing options...
WotEver Posted April 14, 2017 Report Share Posted April 14, 2017 8 minutes ago, Chris-B said: More than likely it will be a prm 260 7 minutes ago, Flyboy said: The Barrus Shire 40 Is normally supplied with a PRM 150 There we go. A perfect CWDF response Just now, Rose Narrowboats said: Dipstick is on the port side on a 150, starboard on a 260 Ahh now, THERE'S a useful answer Link to comment Share on other sites More sharing options...
Chris-B Posted April 14, 2017 Report Share Posted April 14, 2017 I have eaten cheese Ignore me for 3 par secs whilst I go through the diamodora galaxy Link to comment Share on other sites More sharing options...
Kevsco Posted April 14, 2017 Author Report Share Posted April 14, 2017 Wow! What a great response in just a few minutes. The dipstick is on the port side so it must be a 150. Many thanks for all the replies. Link to comment Share on other sites More sharing options...
Flyboy Posted April 14, 2017 Report Share Posted April 14, 2017 Page 33 of the manual shows both the 150 & 260. Link to comment Share on other sites More sharing options...
Flyboy Posted April 14, 2017 Report Share Posted April 14, 2017 47 minutes ago, Kevsco said: Hi everyone, i have a Barruss Shire 40 engine with a PRM gearbox but don't know the gearbox model. There does not seem to be a model number visible . Can anyone help? The oil dipstick has a 13 mm drain plug if that is relevant. The ID plate should be on top of the gearcase forward of the selector lever. Link to comment Share on other sites More sharing options...
WotEver Posted April 14, 2017 Report Share Posted April 14, 2017 27 minutes ago, Chris-B said: I have eaten cheese Ignore me for 3 par secs whilst I go through the diamodora galaxy Welcome back. 1 Link to comment Share on other sites More sharing options...
Kevsco Posted April 14, 2017 Author Report Share Posted April 14, 2017 Wot ever. Thank you . I don't post much but am an avid follower of the forum. The extent of knowledge by members is truly outstanding! Link to comment Share on other sites More sharing options...
WotEver Posted April 14, 2017 Report Share Posted April 14, 2017 Just now, Kevsco said: Wot ever. Thank you . I don't post much but am an avid follower of the forum. The extent of knowledge by members is truly outstanding! Well yes, a member for 18 months and only 9 posts - that's an average of one every 2 months - you're right, you don't post much Link to comment Share on other sites More sharing options...
Chris-B Posted April 15, 2017 Report Share Posted April 15, 2017 The froohles are strange on the other dimension and their cheese tastes like ravioli Ahh gearboxes not I have my inverted triple language keyboard I can see it was a one fifty back to the Gin then Toodle pip Link to comment Share on other sites More sharing options...
Victor Vectis Posted April 16, 2017 Report Share Posted April 16, 2017 On 14/04/2017 at 20:37, Kevsco said: The oil dipstick has a 13 mm drain plug if that is relevant. On a PRM 150 the filler plug and dipstick, thats the one on the top, is 18mm AF and the drain plug, underneath is 13mm AF. Link to comment Share on other sites More sharing options...
Flyboy Posted April 16, 2017 Report Share Posted April 16, 2017 18 minutes ago, Victor Vectis said: On a PRM 150 the filler plug and dipstick, thats the one on the top, is 18mm AF and the drain plug, underneath is 13mm AF. The manual says 15mm AF for the drain plug. Maybe some boxes had variations. Link to comment Share on other sites More sharing options...
Victor Vectis Posted April 16, 2017 Report Share Posted April 16, 2017 Oops, my mistake! Link to comment Share on other sites More sharing options...
Chewbacka Posted April 16, 2017 Report Share Posted April 16, 2017 3 hours ago, Flyboy said: The manual says 15mm AF for the drain plug. Maybe some boxes had variations. My manual also says the drain plug which is M16 needs a 15mm AF spanner. I am thinking of replacing the plug with a banjo with some 10mm pipe brazed into the banjo with a ball valve to make emptying with my suction pump much easier. If it works I will let you know. Link to comment Share on other sites More sharing options...
Flyboy Posted April 16, 2017 Report Share Posted April 16, 2017 2 hours ago, Chewbacka said: My manual also says the drain plug which is M16 needs a 15mm AF spanner. I am thinking of replacing the plug with a banjo with some 10mm pipe brazed into the banjo with a ball valve to make emptying with my suction pump much easier. If it works I will let you know. It should work but do make sure that the banjo bolt doesn't protrude far inside the box otherwise you won't be able to fully drain it. Link to comment Share on other sites More sharing options...
Chewbacka Posted April 16, 2017 Report Share Posted April 16, 2017 8 minutes ago, Flyboy said: It should work but do make sure that the banjo bolt doesn't protrude far inside the box otherwise you won't be able to fully drain it. I had thought about that and will trim the bolt with a thin cutting disc in my angle grinder. Even if it is a bit long I should still get more out than I do at the moment by sucking the oil out via the filling hole - which is suggested as an alternative method by prm. I also suspect there is a fair bit of oil in the oil cooler as well, but as I change the gearbox oil every time I change the engine oil I hope it is good enough. Anyway, this should be better. Link to comment Share on other sites More sharing options...
Flyboy Posted April 16, 2017 Report Share Posted April 16, 2017 3 hours ago, Chewbacka said: I had thought about that and will trim the bolt with a thin cutting disc in my angle grinder. Even if it is a bit long I should still get more out than I do at the moment by sucking the oil out via the filling hole - which is suggested as an alternative method by prm. I also suspect there is a fair bit of oil in the oil cooler as well, but as I change the gearbox oil every time I change the engine oil I hope it is good enough. Anyway, this should be better. Great, let us know how it all goes as others may want to do the same. May I suggest you use Dowty washers instead of copper so you don't risk overtightening as the thread in the gearbox is not very long and you don't want to strip it. Link to comment Share on other sites More sharing options...
Ray T Posted April 16, 2017 Report Share Posted April 16, 2017 10 hours ago, Flyboy said: The manual says 15mm AF for the drain plug. Maybe some boxes had variations. Depending on age the PRM 150 had / has two different drain plugs. I'm sorry I don't know the year of change. Link to comment Share on other sites More sharing options...
adrianh Posted April 16, 2017 Report Share Posted April 16, 2017 For a PRM 150 I think that the thread is M16 x 1.5 pitch ( fine thread). It may be 3/8" bsp on the older Delta box. You can buy M16 x 1.5 pitch male/ 3/8" bsp male cone end threaded hydraulic adapters to give you an easy connection for a standard hydraulic hose with 3/8" bsp fittings. I have this arrangement piped through a small tee handle ball valve to a oil lift pump ( as used by Beta etc). This makes an oil change quick and easy. Shorten the thread slightly for the gearbox, use a dowty washer and do not overtighten/cross thread when fitting as it can be awkward to get to. Link to comment Share on other sites More sharing options...
Flyboy Posted April 16, 2017 Report Share Posted April 16, 2017 9 minutes ago, Ray T said: Depending on age the PRM 150 had / has two different drain plugs. I'm sorry I don't know the year of change. That's interesting, I reckon the steel one on the right is a later one. Probably done as a price reduction exercise. Link to comment Share on other sites More sharing options...
Ray T Posted April 16, 2017 Report Share Posted April 16, 2017 (edited) 7 hours ago, Chewbacka said: My manual also says the drain plug which is M16 needs a 15mm AF spanner. I am thinking of replacing the plug with a banjo with some 10mm pipe brazed into the banjo with a ball valve to make emptying with my suction pump much easier. If it works I will let you know. I did this: As my gear box has the older bronze looking drain plug I had to get an adapter specially made, as in picture 2, as Pirtek http://www.pirtek.co.uk/service-centres , my usual source for such things was unable to supply one. RLWP of this parish made it for me. http://www.primrose-engineering.co.uk/ I have elected to have two pumps one for the engine and another for the gear box but it should be relatevily easy to fit a "Y" connector with a change over valve and have the one pump for both. Edited April 16, 2017 by Ray T Link to comment Share on other sites More sharing options...
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