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Old 09-12-2012, 10:09 PM   #1126
innathyzit
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Location: Nelson NZ
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Oil pumps are very efficient and as the revs rise so will the pressure which will cause issues if too high due to revs and oil temperature, e.g. oil runs

at different viscosities when hot and cold so when your engine first starts the oil is very thick therefore the oil pump

will create very high pressure versus when it is hot and runny due to the bypassing effect of the clearances in the gears of the pump and top plate etc.

I have seen oil filters blow up like balls when it gets wrong.

The thing in your pic is the oil pressure relief valve which is downstream from the oil pump and will consist of a plunger

and a spring, and will be joined to the main oil gallery. It will take about 60 pounds-ish to relieve.

When the pressure builds up the oil will push the plunger against the spring until it uncovers a hole which will dump the oil into a no pressure area, usually back into

the sump.

Sorry padders, but my double spacing needs work.

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Old 09-13-2012, 02:10 AM   #1127
Padmei OP
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Thank you very much for the explanations. I will pick your noses about it at a later stage.

On site today I managed to pick up a couple of off cuts of fire sprinkler pipe. Just the right fit for the sprocket
With a new can of freeze spray, the gas torch & a few hard taps the bearing finally was home.

I was determined that the bearing was going to be easier. I set up the torch & began boiling the bearing. The first attempt left hot oil running down the workbench. The 2nd attempt was a lot better.



The bearing went on easier than the sprocket but certainly required some input from the hammer.

Fitted all the bits back on & ready to button back up.

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Old 09-15-2012, 01:40 PM   #1128
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All ready to put the timing chain cover on - yay!
I had double checked everything was ok as I didn't want to forget anything at this stage that would come back to haunt me. the timing marks lined up, the chain was firmish, with a bit of oil on it ready to roll.

I continued carefully heating & refitting the cover followed by the alternator rotor,stator & diode board.
To anyone doing this kind of stuff I really recommend taking pics as I referred back to my laptop a few times to the before photos of the wiring to get the terminals correct on the wiring of the diode board, stator etc.

Great! I stood back & admired my progress. Very satisfying stuff. I smugly wondered what other adv bikers did on crappy wet Saturdays if they didn't have a BMW in the workshop.

OK that was the dry run, now let's do it for real with the gasket on.




The second time went by in a blurry passage of time & next thing I recall I was at the workbench cleaning the rocker gear for reassembly onto my newly furbished heads.

I had new valves, guides & seats re machined.






Refitted the valves & set up the rocker gear all ready for the barrels to be fitted to the case.



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Old 09-15-2012, 01:46 PM   #1129
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Looks good...The valves & gudes are something I may need to look at... Or I may look at swapping across the RS heads as a short term solution.

I see Rajah1 is selling a monolever sidestand assembly. Thought about buying that & lengthening? Would be a simpler process than making one up?
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Old 09-15-2012, 01:55 PM   #1130
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I already have a mono sidestand on berlina but the fixing is different on the frame. I'll get it running right first then work on it.
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Old 09-15-2012, 11:59 PM   #1131
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Swell time today. I got up early & fitted the barrels & heads.
I tried to eliminate the endfloat on the rocker arms however I struggled a few times between having too large a gap & overshimming them so the rocker arms wouldn't fit into their appropriate receptacle. I left it as best I could.

Setting the valves was incredibly easier on the workbench & they are set perfectly. yay!

I fitted a new clutch plate, bolted back on the clutch carrier & stood back making sure I hadn't forgotten any gaskets this time

As it stands now I can put the engine back into the frame & put everything back together.

I tried cleaning the frame & wiring looms but gave up. That bloody clay gets in everywhere & is a bugger to get off. You think you've cleaned it all off until it dries & yep there it is again.
As we are slowly moving towards dusty riding conditions I won't bother getting fussy.

I'll be riding Schmidt again soon. Well that is if the rear swingarm bearings are ok - they had to be tightened up for the last WOF so thy may be on their way out - we'll see soon enough.


ps I like the double spacing Woodman. Very... um... demonstrative
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Old 09-16-2012, 12:29 AM   #1132
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Quote:
Originally Posted by Padmei View Post
I'll be riding Schmidt again soon. Well that is if the rear swingarm bearings are ok - they had to be tightened up for the last WOF so thy may be on their way out - we'll see soon enough.
Swingarm bearings are easy. I've fitted the driveshaft, which I should have bought off trade me instead of ebay, and it didn't take long at all to button it back up. This time I put only the tiniest amount of locktite on the pivot and nothing on the big nut.
Cleaning the thread is the worst part of the job.

Looks like the PD is sold, so soon I'll be able to give Basil some well deserved R&R.
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Old 09-16-2012, 02:38 PM   #1133
clintnz
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Quote:
Originally Posted by Padmei View Post
Don't they have kitchens in Nelson? Up here in the North Is most houses come with a place called a kitchen which is helpfully fitted with all sorts of equipment for cleaning, chilling & heating engine parts

Quote:
Originally Posted by Padmei View Post
I smugly wondered what other adv bikers did on crappy wet Saturdays if they didn't have a BMW in the workshop.
They were reassembling their girlfriend's 'super reliable' 'bulletproof' WR250R after a near complete engine stripdown to replace a gearbox countershaft bearing which had collapsed at 30K km

Good luck with the rest of the rebuild, happiness is a fresh motor.
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Old 09-20-2012, 02:21 AM   #1134
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Cheers Clint. bugger about Rosies bike.
That is my kitchen actually. I reused the oil for a nice stir fry. yum yum

I had a friend call up & we positioned the motor back in the frame.

Now there are 4 spacers, 3 the same & one wider.
Anyone remember which way they go. At the time of dismantling I thought it they would only go in one way so didn't worry about noting it down.
edit: found it front left is the big one. Thanks for chcking tho.


My plan of getting it going this weekend may be a bit ambitious. Said friend dropped off materials for a raised garden bed for the missus

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Old 09-20-2012, 02:57 AM   #1135
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They're back again


I feel a beard coming on again

LONG LIVE THE KINGS - Short film documentary - from SAGS on Vimeo.

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Old 09-20-2012, 03:48 AM   #1136
innathyzit
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Ohhh great vid, and those bikes are beautiful.

Lovely.
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Old 09-20-2012, 04:13 AM   #1137
igormortis
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That was great! Oh, and I need to get on with it...
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Old 09-21-2012, 12:44 AM   #1138
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Just watched it again. jeez it's cool.
I noticed a couple of things the green tank is a Honda & not wanting to confuse it with reality but riding thru that fog in the early hours of the morning would have really sucked no matter how cool they looked.

I think Berlina is gonna be street trackerish


Put the engine, gearbox & swingarm back on Schmidt this avo. Amazing how quickly it takes after you've done it a few times.
Just gotta give the carbs a quick once over before I fit them.
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Old 09-21-2012, 01:15 AM   #1139
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Originally Posted by Padmei View Post

Put the engine, gearbox & swingarm back on Schmidt this avo. Amazing how quickly it takes after you've done it a few times.
Just gotta give the carbs a quick once over before I fit them.
I guess yer going to want that breather thing soon.....

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Old 09-21-2012, 02:09 AM   #1140
Padmei OP
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I guess yer going to want that breather thing soon.....

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Oh yeah thinking of that this eveniong
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