Oil Pressure Gauge

[cobbadog]

Hi guys,
I just bought a new toy to take to Rallies and after about a month of research I now know the make and model of the little dumper. It is a Liner - Roughrider 1250kgs that runs a twin Lister diesel model # 2917SR2A25 rated at 13.2HP @1800RPM. Everything is in good condition but I would like to find an oil pressure gauge to suit it. The original connects just above the oil filter and the gauge sits against the crankcase cover.

Are these still available and if so where from?

Is there a way of estimating the year model of this engine? I think the dumper is 1971 but not confirmed and I hope that the engine number may confirm or help with it age ID.
Thanks for any and all replies. John

[dax021]

Hi cobbadog,

Sorry can't help with the dating of your engine.  There was a site listed once that that explained the serial number and date reference, but I have lost the link.  It didn't help me with my SR2 as the the formats they listed were nothing like my serial number.

Would you please post some photo's of your engine wrt the oil filter and pressure gauge setup.  Mine doesn't have either and it would be nice to see how I could fit them.

Thanks,
Peter

[ajaffa1]

Hi John, that is a Lister SR2 engine, air cooled and reliable. When I rebuilt my ST2 engine I contacted Gary at Diesel Electric in the USA and he provided all the spares for the rebuild. I asked him about an oil pressure gauge and fittings and he confirmed that he had them in stock. Sadly I never got round to ordering it. The oil pump on your engine is a plunger type and will probably quickly destroy most pressure gauges due to the pulsing nature of the pumps. Recommend you fit a shut off valve between the pump and the gauge to improve longevity.

I wish I could remember exactly how to date an engine, but my mental health hasn`t been great and I`ve forgotten more than I would like. I think the first digit is the day of manufacture, I think the second is the month and the last two relate to the year after 1951. based on this vague memory I believe you engine was built on 2 September 1968. I`m probably wrong and someone who can remember stuff will be along soon to correct me.

Bob

[cobbadog]

Hi dax021,
I am after the oil gauge and don't have one to take a photo of but I do have a similar gauge on a big stationary Lister which it also includes a temp gauge in it as well but the temp side doesn't work. I only saw a picture of the oil pressure gauge in the workshop manual and is what I have based my question on. If you have a manual have a look through it and see how it is fixed to the engine. Immediately above the screw on oil filter is a small bolt. This is where the oil pressure line connects. In the manual it shows a small copper line running directly to the gauge.
Hi ajaffa1,
Thanks for the tip on a possible gauge. I will research it and see how I go. I did think it was a big ask to find one. The original style gauge does not show any inline restrictors for the "pulse" that you correctly mentioned and that I did not think about. So I wonder how they got around that issue!
This engine is a strong and easy to start engine even in cold weather. The first time we saw the little dumper the temp was around 6'C and for this part of Australia that's cold enough. 3 swings on the crank and drop the decompression lever and away it went and this was without using the "cold start" position on the stop / run linkage. The previous owner knew nothing of the cold start position so it was never used. When I have tried it the engine starts as usual but I have to manually reset the linkage to be off the cold start position. Is this normal?

Thank you to you both for you help and enquiry. If a pic of the stationary engine gauge is needed I can go and take one of it and post here. If you don't have a pic of the gauge in your workshop manual I will try and copy the image from my PDF manual.

Cheers John

[ajaffa1]

Hi John, didn`t know you were in Australia. I`m in the hills above Grafton, NSW. I think I saw that dumper for sale a couple of months back but didn

[dax021]

Hi John, thanks for that.  Either I'm blind, or my manual doesn't show an oil filter, just a screen in the sump.  My manual is Book 1029/470 for the marine version.  If yours is different I would love a copy.

[ajaffa1]

Hi John, don`t know what happened there, managed to post half way through typing. What I was half way through saying was that I think I saw that dumper for sale a few months back but didn`t have the money at the time. Congratulations on a fine purchase, I am sure it will bring you a lot of pleasure and also be a useful tool both as a show stopper and around your paddocks. I have used very similar dumpers on building sites in the UK, great tool when used in conjunction with any sort of excavator, You might want to consider a roll cage/roof, not because they tip over but to keep the sun off your head.

The go to guy for Lister parts in Australia is Rob at Old Timer Engines. He is very knowledgeable and an absolute stationary engine nut, he even works holiday weekends. Contact him and I bet he will know where to get any parts you require, or more likely have them in stock. He is also has a large stock of good used parts.

Bob

[cobbadog]

This one was bought as is but I have done a bit of work on it since it followed us home. Has been done up a fair while ago and was based on the NSW South Coast. It is nice up your way around the Grafton area and especially up along the Summerland way. The previous owner stored it over in Goulbourn NSW. It was directed to me by another collector near Nowra who knew of this one and was on the market for sale but didn't sell for quite some time. This one just tips forward, later ones can be elevated and slewed sideways as well but run hydraulics to do so. I've had a look on Robs site for a gauge but nothing but that is ok, it was just wishful thinking.
The workshop manual I have is for a ST range which is similar to the SR engine as far as I can see. To find it go to Google and search for the SR or ST Lister diesel workshop manual and this was many that popped up. It has been very helpful even though it states it is a ST manual.
A couple of pics of the manual using the mobile phone. On my engine the screw on oil filter is on the right hand side viewing the engine from behind and flywheel at the front.

[cobbadog]

I meant to add that we will be possibly taking Humpty to the Rusty Iron Rally this year, our home Club so if you want to see him up closer he should be there.

[ajaffa1]

Good evening john, looks like you have got yourself a beauty there. I wish I could attend the Rusty Iron Rally but I no longer drive after a motoring accident, PTSD. I will try to persuade my wife to drive me there but unless they have sewing classes, Bromeliads or handbags it`s probably a no go, she doesn

[dax021]

Thanks for the pictures John, will look into this option.

[buickanddeere]

We just use a snubber to limit the pulsations applied to pressure gauges and pressure transmitters .

[cobbadog]

They are planning an arts and crafts section for this year at the rally, so that just might excite the interest in doing the short drive. Took Humpty Dumpy off Lorry for a photo shoot tody and to test the handbrake operation and all is good. Wrote up a notice board for the rally and now only need the new set of filters to arrive and do a complete service on the complete dumper.

I have also seen  loops put into the lines to help cope with shock waves in the system and that might help if required. Not sure what a "snubber" is so can't comment on that. Although my Pommy wife calls the secateurs "snubbers"  but I don't think that would be in context here. So here is a pic of Humpty Dumpy for those who would like to see him.

[mike90045]

A "snubber" is like an Anti-Water-Hammer device, sometimes with an air chamber, but usually a spring loaded shock absorber, plumbed into the hydraulic network .

[buickanddeere]

A "snubber" is like an Anti-Water-Hammer device, sometimes with an air chamber, but usually a spring loaded shock absorber, plumbed into the hydraulic network .

We mostly use a small diameter orifice .