Crusty's New Home

[JAMESDUNN]

Pickle, if you plan on winter riding use 10W40 oil. Is is recommended for up to 40 degrees farenheit, ambient air temperature. Valve clearances are 0.10mm (0.004 in) intake and 0.20 mm (0.008 in) exhaust, though some of the gurus recommend 0.15mm (0.006 in) for the intake.

 

[20774]

if you plan on winter riding use 10W40 oil. Is is recommended for up to 40 degrees farenheit, ambient air temperature.

This seems confusing to me as I run 10w40 in my truck and car as recommended in the owner's manual and I live in south Texas...we rarely get below 40 degrees F!! I rechecked the truck manual and it shows the low end of temps at 0 degrees but on the high end, it just has an arrow going out to the right for above 100 degrees F. I also checked my /7 rider's manual and it has the following:

- mostly above 86F --> 40w or 20w50
- all year round above 32F --> 20w40 or 20w50
- mostly below 32F --> 10w30 or 10w40 or 10w50

It's the "10" part of the multi-vis that is beneficial for cold weather...a 10w40 could still be run even if it got well above 40F.

 

[rolyak]

Check these guys out!

http://www.re-psycle.com/

While I'm a relative newbie with my '85 R80RT I have been getting stuff from Marco. In their showroom is a beautifully restored R69(?). Another rider was there yesterday getting stuff for an R27 (I think?) From the 50's?

 

[JAMESDUNN]

This seems confusing to me as I run 10w40 in my truck and car as recommended in the owner's manual and I live in south Texas...we rarely get below 40 degrees F!! I rechecked the truck manual and it shows the low end of temps at 0 degrees but on the high end, it just has an arrow going out to the right for above 100 degrees F. I also checked my /7 rider's manual and it has the following:

- mostly above 86F --> 40w or 20w50
- all year round above 32F --> 20w40 or 20w50
- mostly below 32F --> 10w30 or 10w40 or 10w50

It's the "10" part of the multi-vis that is beneficial for cold weather...a 10w40 could still be run even if it got well above 40F.[/QUOTE

Kurt,
I have checked my charts (two) in motorcycle repair manuals and they show up to 40 degrees F. (Clymer's and Haynes.) for SAE 10W40. SAE 20W40 does show past 80 degrees F. maximum. I posted the 10W40 because he lives in Minnesota. Most use 20W40 or stay with 20W50. 20W40 is good for just below zero F. I always hesitate to post oil recommendations because they generate controversy. If I lived in Minn. and was going to ride in very cold weather I'd use the 10W40, where he will almost certainly be riding below 32 degrees F as you note in the list you posted. Modern cars use thinner oils, most I think these days using 5W30.

 

[20774]

James -

I also saw the same diagram in the BMW repair manual...in my Haynes, it shows a non-dimensioned temperature chart where 10w40 goes from somewhere in the "blue" range to as high as a bright "red" range. How in the "F" can I use something like that??

But I just question the upper end range from simple logic. Just about all cars today use something like 5w30. Does that mean they can't drive when the temperature is over 30F or so? Obviously not as they can drive when it is much hotter than that. So, I think the upper cutoff of 40F for 10w40 doesn't make too much sense.

 

[JAMESDUNN]

Kurt, auto engines are much different and have different requirements. I am sure you're right that 10W40 can be run at much higher temps than 40 F. on our airheads, but it is a cold weather riding recommendation. The Clymer is more specific than the Hayne's manual and I was using them as a reference. I have been using 10W40 in my airhead in Iowa winters, and it starts much easier. I am not a true rounder but will ride some in the cold. I do not ride far though and if the temps go above 40 F. I would not be concerned, though this is unlikely. I respect your opinion.

 

[Pickle]

Awaiting Flange Wrench-Trying to Stand

While I'm waiting on my exhaust wrench to show up I've been trying to hunt down a new/used center stand for my bike.

Could I use a K Series or Oilhead center stand on my 74 Airhead? I seem to be having a hard time locating a stand that is bolt in ready for sub $100. Any advice?

My current stand has major issues due to rust and it would take some heavy welding and metal replacement to fix which are both beyond me.

 

[JAMESDUNN]

While I'm waiting on my exhaust wrench to show up I've been trying to hunt down a new/used center stand for my bike.

Could I use a K Series or Oilhead center stand on my 74 Airhead? I seem to be having a hard time locating a stand that is bolt in ready for sub $100. Any advice?

My current stand has major issues due to rust and it would take some heavy welding and metal replacement to fix which are both beyond me.

You'll need the proper center stand. A K series or oilhead has a different stand. Watch ebay as they show up regularly there. My advice on this part would be to buy new, as a used one will show some, or a lot of wear.

 

[Pickle]

No major updates. Just plugged everything in and gave it some gas. Even without the airbox the bike ran better than when I got it. Always room for improvement though. Waiting on parts will send more status picts next week.

 

[Yarddog]

While I'm waiting on my exhaust wrench to show up I've been trying to hunt down a new/used center stand for my bike.

Could I use a K Series or Oilhead center stand on my 74 Airhead? I seem to be having a hard time locating a stand that is bolt in ready for sub $100. Any advice?

My current stand has major issues due to rust and it would take some heavy welding and metal replacement to fix which are both beyond me.

Theres a newly listed centerstand on eBay for a 1976 R90/6...will prolly fit yours and there are others listed as well...bad thing about eBay is that folks start bidding early, which helps NOBODY except the seller!!! That just drives the price up and up...so expect to pay a lot for a center stand...

 

[casper_zip]

Congrats

Hey there:

Great news to see one of these ole beauties restored and saved from a long lingering death.

If you get ready to sell the black box on back, please let me know. I've been hunting one like that.

I recently put my ole 73 R750/5 back in top condition. I bought it new in 73, and have had it stored for years. Looks and runs like new. There is nothing like a good ole BMW bike for a make you feel good kind of day.

All the best, and keep us posted.

casper_zip