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Old 12-21-2012, 02:42 PM   #3241
disston
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Originally Posted by JonnyCash View Post
They also have an "R" and "L" cast in to them, right next to the spark plug. I think that if you have them on the wrong side, they might end up on the bottom where you wouldn't see them.
I have the later issue valve covers on my 1975 R90/6 because when I needed yet another set of valve covers because the wind keeps blowing my bike over or I run into these Hot Rod Latino Red Necks who are turning left in front of me and in trying to find a not too bad looking Peanut covers I discovered that the value of these, used, is something ridiculous. I then found an unpainted set of the side specific covers for a price I could afford.

The unpainted ones BTW are 1977 only. They should even be more durable than the peanut covers because they are thicker. The extra thickness also explains why they are a little quieter.

I thought the R and the L were on the inside. I'll have to look next time I have them off. But I also think that they work on the side indicated and will work with either side up as long as they are on the correct side. The lines being out of order indicates merely they are on the wrong side of the bike. Yes/No?
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disston screwed with this post 12-21-2012 at 02:52 PM
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Old 12-21-2012, 02:50 PM   #3242
Rob Farmer
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Originally Posted by Lornce View Post
Wow. Nearly two hours and nobody's said anything yet...

Good looking bike.

But you know that valve cover's on the wrong side, don't you. You were testing us, weren't you.

Well spotted that man

Yep. They were on upside down because one of them leaked if they were on the right way round. They did eventually get swapped for decent, non leaking, rocker boxes. You missed the RT brake lines instead of the normal ones

It was an ebay bike that looked like this when I got it


Rob Farmer screwed with this post 12-21-2012 at 02:55 PM
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Old 12-21-2012, 03:02 PM   #3243
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Originally Posted by Beater View Post
The lines across the cover should be close to level with the ground ... Having a bit of an up-angle is your sign ... many don't notice it (I don't really) ... but some see it first thing.
Quote:
Originally Posted by JonnyCash View Post
They also have an "R" and "L" cast in to them, right next to the spark plug. I think that if you have them on the wrong side, they might end up on the bottom where you wouldn't see them.
Thanks for the education. I'll make sure not to make this mistake.
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Old 12-22-2012, 02:02 AM   #3244
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Originally Posted by Beater View Post
The lines across the cover should be close to level with the ground ... Having a bit of an up-angle is your sign ... many don't notice it (I don't really) ... but some see it first thing.
Yep, those lines on the cover should run parallel to the header underneath it. If your eye is tuned to things symmetrical and you're an airhead rider, it's probably one of the first things you'll notice once you're aware of it. To further the education, and other than some eagle eye will point it out to you, what are the consequences of the cover being on incorrectly? Anyone?
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Old 12-22-2012, 06:17 AM   #3245
disston
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Originally Posted by boxerboy81 View Post
yep, those lines on the cover should run parallel to the header underneath it. If your eye is tuned to things symmetrical and you're an airhead rider, it's probably one of the first things you'll notice once you're aware of it. To further the education, and other than some eagle eye will point it out to you, what are the consequences of the cover being on incorrectly? Anyone?

0
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Old 12-22-2012, 07:22 AM   #3246
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Do tell...
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Old 12-22-2012, 08:55 AM   #3247
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0
+1. Absolutely no functional or detrimental mechanical effect ... except it will ferret out the BMW neurotics, and symmetry purists in any spectating crowd.



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Old 12-22-2012, 09:02 AM   #3248
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Ya know, wrongly installed valve covers is comparable to screeching fingernails on a blackboard.

Doesn't bother me, but it does grab attention!
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Old 12-22-2012, 07:00 PM   #3249
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Guess I'm an outcast..cant attach pics. Why is everybody always mean to me?
All my stuff is at bmwthrottlesprings.com
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Old 12-23-2012, 06:25 AM   #3250
woodly1069
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Interesting! Earlier airheads had different valve covers and now that I look at mine maybe they are backwards too...
A're they tagged as right and left inside the cover too?
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Old 12-23-2012, 07:01 AM   #3251
disston
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Originally Posted by woodly1069 View Post
Interesting! Earlier airheads had different valve covers and now that I look at mine maybe they are backwards too...
A're they tagged as right and left inside the cover too?
The earlier, sometimes called peanut, valve covers will fit properly on either side.

The later style covers, whether painted or not, fit properly on one side or the other but not both sides. The later covers have an R or an L on the inside that tell which side they fit. If the later covers are fitted to the wrong side they will work just fine but the lines, which should be parallel to the ground or the exhaust pipes will instead display an angle.

The later style covers have no up or down side, they fit properly in either mode as long as they are on the correct side of the bike.

Somebody earlier said there are marks on the outside of the covers and the angle is due to flipping the cover. Neither of these features have I noticed. I have later covers on my earlier bike and would take them off later today to verify this but I have currently a problem elsewhere and it is against policy to screw with something not related to the problem I am working on. Maybe if it warms up enough to put the rear end back together I'll have some time later to do this.

The mystery is why it works this way or for that matter why anybody cares.

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Old 12-23-2012, 07:08 AM   #3252
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Guess I'm an outcast..cant attach pics. Why is everybody always mean to me?
All my stuff is at bmwthrottlesprings.com
It used to be easier when ADVRider hosted the photos for us but this slowed surfing the site and now you must have a photo account at some other site to post photos or Hot Link to the original photo. Hot Linking sometimes doesn't work and sometimes is considered rude, because it is using a third parties band width for your personal use.

You'll find the tutorial on this page. Option 2 is what s needed;

http://advrider.com/forums/showthread.php?t=919
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Old 12-23-2012, 08:04 AM   #3253
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Originally Posted by woodly1069 View Post
A're they tagged as right and left inside the cover too?
yes.
RECHT = right
LINKS = left
Some late valve covers do not have the L/R on the outside.
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Old 12-29-2012, 04:11 PM   #3254
darmahman
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Found on fleabay

Just received her today... 11,500 miles from new!

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Old 12-29-2012, 04:21 PM   #3255
Noswal
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Outstanding!
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