Joined Jun 2007
4K Posts | 1K+
south east WA Australia
Joined Mar 2016
422 Posts | 175+
Burlington
I stydied your oil pump thread and want to increase my pressure too. What spring pressure and oil pressure did you end up in the end? Your first upgraded spring didn't give you oil pressure that you wanted. I have 3 progressively stronger springs just waiting.
Joined Jun 2007
4K Posts | 1K+
south east WA Australia
It's stil the same Spring but I will increase it 20% next time I open the engine it's the old cases so requires case split.
It's also the old head which has oil feed to everything And I added a lot of oil flow to the main Bearing on the lhs so you probably don't need as strong a spring as me.
I'm Travelling at the moment so don't have good internet
It's also the old head which has oil feed to everything And I added a lot of oil flow to the main Bearing on the lhs so you probably don't need as strong a spring as me.
I'm Travelling at the moment so don't have good internet
Joined Sep 2013
369 Posts | 209+
canolbarth cymru
Cheers Bush, it looked like a bodge to me so I fitted a standard spring. Can't imagine it's a JBS upgrade!!
Do you think it did actually increase oil pressure!?!?
Yes, I read your thread on the pump upgrade, interesting stuff!!
Joined Jun 2007
4K Posts | 1K+
south east WA Australia
Joined Sep 2013
369 Posts | 209+
canolbarth cymru
This pump is some kind of upgrade?
The peg locating hole in the shaft is nearly flush with the cap. To locate the pump gear the previous builder has ground off part of the cog face.
The pump cap is located with Allen heads, well and truly rounded off, no idea how I'm going to undo them! Probably cut a slot!
The peg locating hole in the shaft is nearly flush with the cap. To locate the pump gear the previous builder has ground off part of the cog face.
The pump cap is located with Allen heads, well and truly rounded off, no idea how I'm going to undo them! Probably cut a slot!
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Joined Jun 2007
4K Posts | 1K+
south east WA Australia
Joined Sep 2013
369 Posts | 209+
canolbarth cymru
Hi Spanner,
Which KTM did you use? Straight fit?
Did either increase pressure significantly?
Do you use the standard relief spring?
questions questions
Joined Sep 2007
782 Posts | 291+
???
77038011000 is 15mm wide, I think the JBS was 14mm?
so I surface ground it down to suite the JBS cover.
The JBS cover was causing some binding and I had to move the
hole the shaft goes through to stop that. Yours may be OK.
I added a 3mm packer as Bushie suggests to increase the oil
pressure. I do not have a gauge fitted so can`t give any figures
for the pressure.
I did a bit of work to the inlet and outlet ports with a 1/8 ball burr
and a pencil grinder to help the flow. A steady hand is required.
so I surface ground it down to suite the JBS cover.
The JBS cover was causing some binding and I had to move the
hole the shaft goes through to stop that. Yours may be OK.
I added a 3mm packer as Bushie suggests to increase the oil
pressure. I do not have a gauge fitted so can`t give any figures
for the pressure.
I did a bit of work to the inlet and outlet ports with a 1/8 ball burr
and a pencil grinder to help the flow. A steady hand is required.
Joined Jun 2007
4K Posts | 1K+
south east WA Australia
Joined Sep 2013
369 Posts | 209+
canolbarth cymru
OK, I borrowed a gauge, oil heating 0-300psi, a bit heavy duty but needs must. Tapped it into a spare cover, 1/8 bsp.
Around 15psi on fire up around 1800rpm, bring the revs up 3000rpm+ around 35psi...all good?
Left it ticking over until she was good and hot and the pressure drops, 10psi tickover and 25-ish with a blip. That would be due to hot thin oil?
Am I being a bit paranoid?
Around 15psi on fire up around 1800rpm, bring the revs up 3000rpm+ around 35psi...all good?
Left it ticking over until she was good and hot and the pressure drops, 10psi tickover and 25-ish with a blip. That would be due to hot thin oil?
Am I being a bit paranoid?
Joined Jun 2007
4K Posts | 1K+
south east WA Australia
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