Oil System question from a newbie

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rickrs
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Oil System question from a newbie

Post by rickrs » Mon Dec 17, 2018 10:32 pm

Hi All,
Just bought a 2016 Ranger Sahara and was thinking of putting an oil cooler on it as I live in a hot climate (Queensland, Australia). I've read the Great oil cooler debate in this forum and I'm now disinclined to fit an oil cooler due to the info about the low pressure / splash feed system used in the Ural 750 engine and the fact that the oil just appears to 'visit' the cylinder heads and not perform any great cooling function.

My misspent youth involved a lot of time with bevel gear Ducatis which employed an oil strainer in the sump on the dipstick and later an after thought partial flow oil filter for the square case motors. These motors were similar to the Ural, employing a high volume (?) low pressure oil pump feeding oil to a built up roller bearing crank and big ends. These motors were reliable as long as you used the correct oil (straight 50W) and cleaned out the sludge traps on the crank periodically. From memory, even with the racing engines, oil coolers were very rare.

My question is : Given that these engines are generally regarded as 'splash feed' AND have an oil pump - which parts of the engine does the oil pump feed oil to via oil galleys and which parts get the 'splash'?

My other question is: Can anybody provide a schematic of the oil galleys / oil distribution in the Ural 750 motor / similar to the BMW one I have attached ?

My other other question is : The 2016 motor has the spin on oil filter, Is this a full or partial flow filter ?

Thanks in advance for all your insightful input.
2016 Ranger Sahara

GregAus
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Re: Oil System question from a newbie

Post by GregAus » Mon Dec 17, 2018 11:17 pm

The oil filter. big end and main bearings are fed by the oil pump. The pump also feeds a pipe that directs oil to the camshaft gear and splash and vapour lubricate everything else. The following are SV Lubrication, but apart from the oil filter, it's essentially the same.
SV lubrication system.pdf
CJ Lubrication.pdf
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rickrs
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Re: Oil System question from a newbie

Post by rickrs » Tue Dec 18, 2018 6:28 am

Thanks Greg your response was much appreciated .

Just found another thread on the Forum where a full explanation of the oil system / path is explained and a schematic - wouldn't you know it after quite a few hours of searching
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Re: Oil System question from a newbie

Post by Jomy » Tue Dec 18, 2018 7:28 am

Oil cooler on my 2018 Ct works very well.

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Re: Oil System question from a newbie

Post by Tomcatfixer » Tue Dec 18, 2018 7:43 am

Oil cooler on my 2018 Ct works very well.
Do you have a temperature gauge installed? If so, what kind of temperature reductions are you seeing? If not, how do you gauge it's performance?
- Chad

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Current rides:
2015 Ural cT "Mobile Chernobyl", 2001 Ural Patrol "The Patrol", 1999 Ural Tourist "The RPOC", 1994 Honda VFR750F

Previous rides:
2007 Honda VTR1000 FireStorm (Super Hawk in U.S.)
2001 Buell Blast! - - - - - - - 2005 Yamaha FJR1300
1993 Honda CBR600F2 - -1984 Yamaha FJ1100
Two different 1986 Yamaha FZX700S Fazers

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Re: Oil System question from a newbie

Post by AndyH » Tue Dec 18, 2018 3:22 pm

Brucek over at Uralsinaustralia fitted temp sensors on engine and gearbox oil - engine reached 90 -100 Deg C very quickly and didn't really deviate much after that whereas the gearbox took a very long time to get anywhere near running temp. Some of the other members over there have tried them at various times - mixed results.

I use a RYCO Z608 as a replacement which I believe is a full flow.

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Jomy
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Re: Oil System question from a newbie

Post by Jomy » Tue Dec 18, 2018 6:09 pm

Tomcatfixer wrote:
Tue Dec 18, 2018 7:43 am
Oil cooler on my 2018 Ct works very well.
Do you have a temperature gauge installed? If so, what kind of temperature reductions are you seeing? If not, how do you gauge it's performance?

The oil cooler is getting hot , so it cools . No temperature gauge required .
I installed the oil cooler as a precaution

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Re: Oil System question from a newbie

Post by Tomcatfixer » Tue Dec 18, 2018 6:35 pm

The oil cooler is getting hot , so it cools . No temperature gauge required .
Can't argue with that logic.
(Even if I tried, it probably wouldn't do any good) :lol:
- Chad

Gordonsville, Virginia, USA

Current rides:
2015 Ural cT "Mobile Chernobyl", 2001 Ural Patrol "The Patrol", 1999 Ural Tourist "The RPOC", 1994 Honda VFR750F

Previous rides:
2007 Honda VTR1000 FireStorm (Super Hawk in U.S.)
2001 Buell Blast! - - - - - - - 2005 Yamaha FJR1300
1993 Honda CBR600F2 - -1984 Yamaha FJ1100
Two different 1986 Yamaha FZX700S Fazers

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Re: Oil System question from a newbie

Post by Doc » Wed Jan 30, 2019 1:56 pm

Jomy wrote:
Tue Dec 18, 2018 7:28 am
Oil cooler on my 2018 Ct works very well.
can you post pics and info on oil cooler you have?
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Re: Oil System question from a newbie

Post by hotflash44 » Wed Jan 30, 2019 4:48 pm

just curious, if a engine is engineered to run at very high temps like Urals and other air cooled engines, and you stay within those perimeters why would you need cooler oil. wouldn't the factory system meet all needed requirements? Will the engine last longer or run better to justify the cost of a cooler. not trying to start a argument just always wondered. PS i understand cooler oil is desirable and certainly couldn't hurt. :cheers:
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Re: Oil System question from a newbie

Post by Wildhorse Cafe » Wed Jan 30, 2019 5:00 pm

I once was a fan of oil coolers and even purchased a high volume oil pump, spin on conversion, and electric cooler but now doubt the wisdom of the cooler.
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Re: Oil System question from a newbie

Post by Jomy » Fri Feb 01, 2019 6:51 pm

Doc wrote:
Wed Jan 30, 2019 1:56 pm
Jomy wrote:
Tue Dec 18, 2018 7:28 am
Oil cooler on my 2018 Ct works very well.
can you post pics and info on oil cooler you have?
Motorcycle Storehouse Jagg universal oil cooler 196 Euro's

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Re: Oil System question from a newbie

Post by BlueRockCrawler » Mon Feb 25, 2019 4:37 pm

The '19s appear to have a small oil cooler. Not giving any input, just pointing it out.
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Re: Oil System question from a newbie

Post by rougaroo » Mon Feb 25, 2019 7:39 pm

The only real problem you have with airheads of any sort isn't the heat when you're running, it's the heat when you're stopped. They all depend on air flow across the cylinders to dissipate the heat. It does get worse when the difference between the ambient air and the cylinders lessens; likewise, I've joked that my Ural feels like it gains 5hp when the outside temp drops below 50F.

In the summertime most of us have learned to shut the engine off when idling after a long run, as at a stoplight. There's a particular burnt oil smell that clues you. I have an oil temperature dipstick, but most of the time I can smell the oil even before checking the dipstick.

Not meaning to hijack this into an oil thread, but the new 2019 smelled like it was running synthetic out in Redmond. We asked Ilya, and he confirmed it was running synthetic. One if the reasons he gave was the higher boiling point of synth.

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Re: Oil System question from a newbie

Post by hotflash44 » Mon Feb 25, 2019 8:33 pm

rougaroo wrote:
Mon Feb 25, 2019 7:39 pm
The only real problem you have with airheads of any sort isn't the heat when you're running, it's the heat when you're stopped. They all depend on air flow across the cylinders to dissipate the heat. It does get worse when the difference between the ambient air and the cylinders lessens; likewise, I've joked that my Ural feels like it gains 5hp when the outside temp drops below 50F.

In the summertime most of us have learned to shut the engine off when idling after a long run, as at a stoplight. There's a particular burnt oil smell that clues you. I have an oil temperature dipstick, but most of the time I can smell the oil even before checking the dipstick.

Not meaning to hijack this into an oil thread, but the new 2019 smelled like it was running synthetic out in Redmond. We asked Ilya, and he confirmed it was running synthetic. One if the reasons he gave was the higher boiling point of synth.

Rougaroo
wonder if the 2019 Urals get syn oil at the factory or is it installed at the dealer. do they still like dino oil for the first 500 miles then switch to syn. maybe the old idea that a new engine wont seat in on syn is different now. :? :cheers:
2016 gear up asphalt grey, name Seryy Medved ,Air America CIA circa 1967/8 Vung Tau Viet Nam USS Tutuila ARG-4 (AND JUST A TOUCH OF AGENT ORANGE!)

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