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Discussion in 'Airheads' started by vacantstare, Sep 13, 2010.
This would work fine for me. I don't go down a lot.
Thanks, I guess I was looking to see if this was more a style thing or if these covers actually were stronger or had some other advantage over stockers.
Lucky me, these came on my bike and I was actually thinking of replacing them with the peanut style...
Oh... You actually had a question!
The CC Products Cool Covers were advertised as being stronger, heavier, and quieter than the stock parts and they were also supposed to help with engine cooling. AFAIK, those claims are all true but it'd be hard to confirm any cooling advantages. One of their best features is that they have o-rings instead of gaskets. The rings last a long time and mine have never leaked a drop. Not yet anyway...
If yours are in nice condition, hang on to em. I initially bought mine because my bike is loaded with 80's after-market accessories but the looks have kinda grown on me as time has passed.
Now... Don't drop your bike!
I believe that Chris' idea about the better cooling was that since there was no huge gasket, the heat could transfer through the valve cover more completely.
He would know..............................
Yep. From an old CC catalog:
"...deep fin design projects a powerful profile...thick alloy to dampen valve noise...external and internal fins provide maximum cooling...polished fin edges accent gloss black...o-rings...1) won't leak 2) metal to metal contact provides heat transfer and cooler head temperature...vital on today's hotter running, emission controlled engines. $179.95 pair"
All of it makes perfect sense...until the part about dropping head temps. I'd need to see two thermometers on one bike - one head with the Cool Cover and the other w/ a stock cover - before I'd believe that head temps are dropped in any meaningful way. There's already a lot of fin surface area in the hottest part of the head. But I'm a skeptic.
Thanks guys for the great info regarding CC covers. I will most likely hang on to them and possibly just keep them on for now.
I like to resurrect old threads
I may have missed it in here some place but was wondering if anyone may be able to explain the difference in the /7 valve covers. I have seen them with no black paint (maybe early ones?), and then with the paint. Was there a model difference and therefore bikes that came with the black painted parts or was it done at some point during a productuion year for everything?
The square valve covers start with the 1977 model year. The first year only is unpainted. The peanut covers are thinner. The thicker square covers are quieter (you can notice this if you change back and forth on your bike).
There is another big difference between the two styles. Peanut covers are one molding and a peanut cover will fit either side. The square covers are side specific and so there is a left and a right.
If you have a pair of the square covers the left or right side will attach correctly to it's named side with either side up or down. If the covers are swapped from left to right the lines come out funny and they don't look right.
A minor correction (I believe... I could in fact be wrong). There were a number of bikes post 77 that came with unpainted valve covers. One of them being the 83 r80rt. Mine are not painted, and I'm pretty sure they are the original covers as I've seen others of same year and make unpainted. Again, I could be mistaken here, and unpainted is certainly less common either way.
BMW sells the later covers in both painted and unpainted versions. I think it was the R80, and maybe others, that call for the unpainted versions...
That would make sense to me Bamboo as my buddy David's 1978 R80 is almost surely original and his are the square style unpainted.
Maybe some of the issue comes from what is a /7 model? My 1978 (made 8/77) has the R80/7 label on the engine. So, I call it a R80/7. Some call any airhead (including G/S and GS models) made to 1984 a /7 model. I don't understand their reasoning and am not alone in that. FWIW, my 1978 has plain aluminum covers of the style used through 1996.
I replaced the left cover (which had a right cover in its place since I got the bike). Max BMW had a sale on covers so I bought one, but it was black. The paint (powdercoat?) had to be removed by putting the aluminum valve cover in concentrated sulfuric acid for about 1/2 hour - but it came out fine. The bare aluminum valve covers are more expensive than the black, for whatever reason.
My 83 R100 had painted, the 86 R65 unpainted. Don't forget the "carbon fiber" - a Dauntless Engineering Product according to Airhead parts on line. They are $110 each and are aluminum made to look like carbon fiber peanut covers.
I just wish mine didn't leak.
AFAIK, the black covers were fitted to the "full power" R100 models. I.e. the basic (low CR) R100 came with unpainted covers, whereas the RS, RT and S ones got the black covers. 800 cc = unpainted covers.
I remember reading this years ago when I found out about the CC Products valve covers. Finally got those valve covers, Robert. $75 shipped from a guy named Stoner in California.
An airhead hauling concrete is just great
and I appreciate ya doin' it. It's a good one to bring back.
Anyone have a fancy infared thermometer they want to loan me? I can ride around on an afternoon with both valve covers and see if they work.
Refinish my black square covers. Paint or powder coat? Going to keep the silver ( raw) fins
Paint is easier to repair.