Scammell Explorer Gallery

[daz76]

I have just found a company website in Southampton and they have these oils at half the price, they list a Classic 50 engine oil and straight SAE90 and 140 gear oils, check it out;

www.cplubricants.co.uk/classic.htm

 

 

Richard, you'll be pleased to know that Forest Lubricants are in full agreement about OMD330 being an engine oil sometimes used in gearboxes etc. For anybody still interested, Forest's 25 litre cans of each of the original spec oils are cheaper than Morris's (just over the £50 mark), but with delivery etc, there's not going to be much in it. I contacted CP lubricants in Southampton (address above) and for 2x 25 litre drums of SAE 140 and 1 of SAE 90 to be sent to me in Cornwall is £185 inc VAT and delivery. Not bad when by comparison, my local supplier three quarters of a mile away wants £ 68.71 each - £7 a drum cheaper to come from Southampton! You pays your money............ Still hope to do better than this locally though.

 

Morris oils Shrewsbury www.morrislubricants.co.uk

Forest Lubricants www.forestlubricants.co.uk

 

Ps doesn't that Explorer/Contractor look tasty! :cool2:

[gritineye]

Your local agricultural engineers may keep the vintage 140 gear oil for their stubborn old customers who won't give up their Fordson Majors etc. I get mine there.

[daz76]

Your local agricultural engineers may keep the vintage 140 gear oil for their stubborn old customers who won't give up their Fordson Majors etc. I get mine there.

Thank Gritineye, I'll give them a try. Daz

[radiomike7]

Is this the same one that appeared at the Scammell Owners club rally at Rodger Austins yard in chassis cab form early 1990s?

 

You have a good memory, I have a feeling that was one of the four mentioned.

[Degsy]

Daz I think you will find that if you can collect Morris's oil from a local supplier it will be cheaper than the prices shown on Morris's web site. I collected some from a Case construction machinery dealer today, difference was over £5 plus vat cheaper on 25 litre drum. This was for a specialist hydraulic oil, when it comes to engine oil the difference is £10 to £12 per drum.

[daz76]

Daz I think you will find that if you can collect Morris's oil from a local supplier it will be cheaper than the prices shown on Morris's web site. I collected some from a Case construction machinery dealer today, difference was over £5 plus vat cheaper on 25 litre drum. This was for a specialist hydraulic oil, when it comes to engine oil the difference is £10 to £12 per drum.

Thanks Degsy. I still think I can do a lot better than the prices I've got so far so that's a useful tip. Trying to put the spare pennies towards panelling the cab and doing the brakes over the Summer. Daz

[philb]

Poking my nose in, here's a chart that might be of interest to you.

[radiomike7]

Poking my nose in, here's a chart that might be of interest to you.

 

Well done Phil, am I right in assuming that the military grades are in fact ISO?

[philb]

Well done Phil, am I right in assuming that the military grades are in fact ISO?

 

I think so (roughly) but it puts the OMD330 beyond the top of the SAE50 viscosity range. Like most things, it's not quite that simple!

[Richard Farrant]

Well done Phil, am I right in assuming that the military grades are in fact ISO?

 

Mike,

 

ISO (International Organisation for Standardization) is the system used to classify Industrial lubricants. SAE is used to classify automotive engine and gear oils. ISO cover such thing as hydraulic oils, etc.

[Richard Farrant]

it puts the OMD330 beyond the top of the SAE50 viscosity range.

 

I think you are misunderstanding what OMD330 is.........it is a SAE50 engine oil.......so how can it be "beyond the top......" ?

[croc]

Useful chart, thanks. We discussed OMD330 not that long ago... http://hmvf.co.uk/forumvb/showthread.php?t=12572

[philb]

I think you are misunderstanding what OMD330 is.........it is a SAE50 engine oil.......so how can it be "beyond the top......" ?

 

Richard, I don't think I'm misunderstanding, I agree with you. I was answering the question about the MoD numeric designations being ISO viscosities. It seems like they do tie up quite well but, as you say, they are didfferent types of specification. Apart from the various potential additives, it's not as simple as matching viscosites at given temperatures.

 

My statement was just based on observation from the chart I found that ISO 330 does not seem to align with the range of SAE50. In other words, the chart is quite interesting but don't read too much into it.

 

Sorry to labour the point, I'll shut up.

 

PS Thanks for posting the extensive cross-reference that really was interesting.

[Richard Farrant]

Richard, I don't think I'm misunderstanding, I agree with you. I was answering the question about the MoD numeric designations being ISO viscosities.

 

My statement was just based on observation from the chart I found that ISO 330 does not seem to align with the range of SAE50.

 

Phil,

 

330 is not refering to any ISO or SAE viscosity, it is a number denoting viscocity at 100 degs F in Centistokes, with prefix OMD meaning Oil, Mineral, Detergent.

As you say, the chart is just to put viscosities in to context, no problem comparing SAE as we have said recently, an engine oil can be specified in place of a gear oil, but not vice versa.

Edited April 25, 2009 by Richard Farrant

[rbrtcrowther]

Hello Chaps.

 

Finally managed to get Big Jenny on the move Today if only a few yards down the road to the gate into the field!!:yay: after much mushing and grinding of gears! (forgot how to do it) i got as far a 5th but had to stop due to lack of road and ear defenders ( number 6 whines like F*&*)

Also pulled the winch cable out and re timed the serving gear. However when reversing down the track i noticed there was no oil pressure in the gearbox.(My Scammell has a thing about oil pressure:-D) oil pressure is ok in newtral and all forward gears but the light comes on on reverse. So i have a valve problem in the pump.

Is it worth pulling the pump out an farting about with the valves or should i leave it alone? for the moment i just reverse for a while then stop in neutral and let the oil pressure build then reverse some more.

 

Advice please.

 

Rob.

[radiomike7]

Hello Chaps.

 

Is it worth pulling the pump out an farting about with the valves or should i leave it alone? for the moment i just reverse for a while then stop in neutral and let the oil pressure build then reverse some more.

 

Advice please.

 

Rob.

 

Rob, it is a 15 minute job to remove the pump so do it, I have seen too many Scammell gearboxes ruined through lubrication problems. Don't forget the one way valve steel balls go at the top and the duralumin ones at the bottom.

 

Mike

[rbrtcrowther]

Right will do. I am also a bit worried about the whine from 6th gear, all the others are silent but 6th was a bit of a screamer. Is it normal??:confused:

[radiomike7]

Right will do. I am also a bit worried about the whine from 6th gear, all the others are silent but 6th was a bit of a screamer. Is it normal??:confused:

 

Sixth gear is often a problem, I had a 'box in mine that was so shot that the large mainshaft gear was machining the casing yet it was quiet in 6th, but a replacement REME built unit with a full complement of brand new gears screamed it's head of in 6th. My Constructor was fine in 6th but a friend of mine rebuilt his Highwayman gearbox 5 times with 3 different pairs of 6th speed gears and never eliminated the top gear din.

[rbrtcrowther]

We'll invest in a set of ear defenders then!!!

:shake:

[AndyFowler]

Kevin Watkins has sent me the chassis numbers of the three Constructor cab Explorers exported to New Zealand and wondered if anyone could confirm that this gave them a 1959 year of manufacture ? They are 10246 ,10247 and 10248 ! Cheers Andy F:-D

[daz76]

Thanks Phil for the comparison chart. Interesting reading.

 

Great to know Big Jenny's on the move again Rob. Can I suggest the modification made to my Explorer regarding the gearbox oil pressure- Quite simply remove the pressure guage and bend the end of the pipe over to stop oil drips (not my own modification!) I'm working on the assumption that what I don't know won't worry me...:coffee:

[thor698]

Right will do. I am also a bit worried about the whine from 6th gear, all the others are silent but 6th was a bit of a screamer. Is it normal??:confused:

mine was the same in top so changed gearbox and still the same:argh:

ended up being the clutch centers rivets worn:(

 

changed clutch and was ok:yay:

[rbrtcrowther]

Gearbox pump is out but it took me 22 mins not 15!! Have stripped it down and found that it was missing a pin that stops the bottom ball valve sucking right up and sealing off. Made a new one from a piece of ark welding rod and is good as new!! (plopped it in a pot of oil and spun it by hand both ways. first time i tried it i got a vacume in reverse!) Will plonk it back in tommorrow if weather is good. My scammell is an early one so no pressure gauge just a light that goes off. Pressure should be 3 - 5 psi at normal road speed.

 

Suppose i should really check the rear axle oil pump one day woulden't be supprised if that won't pump either... not got a good track record with oil pressure on this Scammel:red:

[AndyFowler]

Regarding the rear axle oil pump Rob a chap who ran an Explorer on recovery work for many years told me to check the oil pump drive shaft for wear as he had one fail causing back axle damage ! Just one more job to add to the list :sweat:

[rbrtcrowther]

Anyone coming to llandudno this weekend? Have sent you a pm Andy:)