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Old 03-22-2014, 08:34 AM   #1
dirtriderbloke OP
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KTM Oil Line Banjo Bolts...

hey guys. just a quick question sorry.
was reading through my service manual and noticed a section about the oil line(that supplies oil from the bottom end to the top end). there are 2 bolts, one of them is an oil jet bolt(which controls how much oil the top end is supplied with) and the other is a banjo bolt. one of them is longer than the other. the smaller 1(jet bolt) is meant to go at the top, in the head and the longer 1 is meant to be in the engine case at the bottom.
The manual doesn't state which bolt was which, i had to find out off a mate but i remember putting them in the opposite way(jet bolt at the bottom and longer 1 at the top).

question is, if the jet bolt(smaller bolt) controls the amount of oil the top end is supplied with and i had the longer bolt in there, does that mean the top end wouldn't of been getting any oil or i would've done any damage running and riding the bike? or should everything be ok still?

the pics below show the 2 bolts and the oil line section in the manual.



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Old 03-22-2014, 09:44 AM   #2
joexr
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Either way the maximum flow will be the same as the smallest hole.
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Old 03-22-2014, 09:49 AM   #3
dirtriderbloke OP
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what do you mean?
i think the holes in the bolt are bigger judging by the picture?
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Old 03-22-2014, 10:10 AM   #4
joexr
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The bolt with the larger hole can't flow any more than the smaller hole will allow .
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Old 03-22-2014, 10:12 AM   #5
dirtriderbloke OP
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good point! so then it shouldn't matter and wouldn't of done much damage?
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Old 03-22-2014, 10:23 AM   #6
dirtriderbloke OP
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wouldn't the peak pressure from the oil pump be different though? and let different amounts in.
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Old 03-22-2014, 02:37 PM   #7
puuh_racing
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Isn't it a difference on the head of the bolts if you look at the picture from the manual?
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Old 03-23-2014, 02:02 AM   #8
dirtriderbloke OP
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Quote:
Originally Posted by puuh_racing View Post
Isn't it a difference on the head of the bolts if you look at the picture from the manual?
maybe but the manual didn't state which bolt was actually which.
any of them could've been the jet bolt
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Old 03-24-2014, 08:48 AM   #9
wvrocks
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Not sure what year this is but it looks like an RFS motor. Looking at the parts fiche for a 2004 525 exc it shows the Jet Screw as part #17 and the banjo bolt as part #16. The Jet Screw is the one on the lower end of the oil line. Banjo goes on top of the engine.

The pictures from your manual show the longer bolt with the raised round area on the bolt head in the lower position so it appears that is the Jet Screw. Parts fiche also shows the special head on the lower bolt (part #17)
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