Skip to main content
000000 000003 000006 000009 000012 000015 000018 000021 000024 000027 000030 000033 000036 000039 000042 000045 000048 000051 000054 000057 000060 000063 000066 000069 000072 000075 000078 000081 000084 000087 000090 000093 000096 000099 000102 000105 000108 000111 000114 000117 000120 000123 000126 000129 000132 000135 000138 000141 000144 000147 000150 000153 000156 000159 000162 000165 000168 000171 000174 000177 000180 000183 000186 000189 000192 000195 000198 000201 000204 000207 000210 000213 000216 000219 000222 000225 000228 000231 000234 000237 000240 000243 000246 000249 000252 000255 000258 000261 000264 000267 000270 000273 000276 000279 000282 000285 000288 000291 000294 000297 000300 000303 000306 000309 000312 000318 000321 000324 000327 000330 000333 000336 000339 000342 000345 000348 000351 000354 000357 000360 000363 000366 000369 000372 000375 000378 000381 000384 000387 000390 000393 000396 000399 000402 000405 000408 000411 000414 000417 000420 000423 000426 000429 000432 000435 000438 000441 000444 000447 000450 000453 000456 000459 000462 000465 000468 000471 000474 000477 000480 000483 000486 000489 000492 000495 000498 000501 000504 000507 000510 000513 000516 000519 000522 000525 000528 000531 000534 000537 000540 000543 000546 000549 000552 000555 000558 000561 000564 000567 000570 000573 000576 000579 000582 000585 000588 000591 000594 000597 000600 000603 000606 000609 000612 000615 000618 000621 000624 000627 000630 000633 000636 000639 000642 000645 000648 000651 000654 000657 000660 000663 000666 000669 000672 000675 000678 000681 000684 000687 000690 000693 000696 000699 000702 000705 000708 000711 000714 000717 000720 000723 000726 000729 000732 000735 000738 000741 000744 000747 000750 000753 000756 000759 000762 000765 000768 000771 000774 000777 000780 000783 000786 000789 000792 000795 000798 000801 000804 000807 000810 000813 000816 000819 000822 000825 000828 000831 000834 000837 000840 000843 000846 000849 000852 000855 000858 000861 000864 000867 000870 000873 000876 000879 000882
English French German Italian Spanish

Oil change wows! Can someone tell me where I am going wrong please?

Hi Folks,

I am doing something very, very wrong because my air box gets a good lubing when I run the bike with the oil level at the top mark on the dipstick. 

I follow this procedure to the letter.  https://youtu.be/I2pkEmt_Bqw

All I get for my trouble is a tyre soaked in oil as the air-box relieves itself of all the oil it has just been given by vomiting down its drain pipe onto the exhaust and the rear of the bike.  No danger of rust there then.

After less than 30 minutes the oil is below the dipstick!

In my next session, I shall run the air box drain pipe into a bottle tie-wrapped to the frame so that it does not smother the rear tyre in oil. However, that doesn't answer why it is happening at all. Any ideas?

Just for historical context, my old MkIII 850 used to do exactly the same thing when I had it. After puzzling for ages, a sage old dude told me that the dipsticks were marked wrongly and that the correct level is exactly 1/2" below the lower line. Of course, everyone knew this except me. It ran perfectly for years once I wised up.

Terry

Permalink

There’s been an update for this prob for 3 years , yours hasn’t had it done, one of many updates. There are more updates as well no doubt, u might wanna consider just giving back to dealer in one piece or taking to factory for them to sought it all out,u got an uphill battle 

I think they did change the length of the dipstick at some point, and I was told don't fill to the top mark and as Richard says there have been updates to the system, look at the images I posted a while ago.

Permalink

Yes sounds an odd update,but the newer dip stick is longer,over filling on it’s own can result in oil in air box, the air box kit mod is plugging off vent tubes on rocket cover & new arrangement of oil separating tube things behind the barrels,& little drain bottle fitted on swinging arm that can be emptied every 3000 miles ( on mine anyway) ,check valve on oil line & another little filter, these bikes have continuously had little tweaks and mods 

Thanks guys. I managed to find an hour to chat with a very helpful engineering manager (Rob) in Norton HQ. We came to the same conclusion I.E.   That until she is modded up to Mk2 level in "problem" areas I am going to be in for a lot of hard work. Actually, I don't really mind as long as you guys don't get bored with my dumb questions and it doesn't get too expensive. The bike was cheapish so I recon I can spend a few quid on it. I love a challenge.

Rob says that the oil mod can be considered a two stage mod. He supplied the part numbers for stage 1 along with a technical note covering the whole thing. Some Mk 1s need the whole thing and others just need the 1st stage. I'll do stage 1 and see where I get.

As far as oil level is concerned, Rob informs me that the level must be between the two marks. The video I saw said fill to the upper mark which is simply wrong. Plus, the air box vent that comes out under the engine was supposed to be capped off. It is used to drain the air box not vent it. The cap is missing on mine. I shall be redesigning the breathing and venting arrangements when I finish replacing my girlfriend's ceiling.

Thanks for the help everyone.

Permalink

Been talking to that nice Rob Jameson in Norton. I ordered and rapidly had delivered a set of parts to upgrade my MK1. The most significant piece appears to have been a new longer dipstick. Once fitted I found that I needed to suck about 3/4 liter of oil from the frame to correct the level. Or to put it another way, I had 3/4 liter too much oil in the bike as measured on the original dipstick. 

Shame on Norton for not recalling the early bikes to correct a basic error of design but well done Rob for sorting me out. 

 

Norton Owners Club Website by White-Hot Design

Privacy Policy