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Old 11-06-2013, 03:54 PM   #1
Utleymu OP
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gap between engine pieces

What's up everybody,

I went to replace the battery in my new (to me) 1977 R100/7 and found that there was a gap between the engine pieces right in front of the battery mounting bracket. Here is a picture:


I am guessing this is something that needs to be fixed. Any tips or recommendations on where to start?

Cheers,
utleymu
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Old 11-06-2013, 04:01 PM   #2
crazydrummerdude
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That's the air filter cover. someone didn't wiggle them all the way back in last time. Not a huge deal, nor a difficult fix!

Left side comes off, air filter comes out, and you can loosen things up, wiggle them into place, and tighten everything back down.
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Old 11-06-2013, 04:09 PM   #3
Utleymu OP
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Thanks drummerdude
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Old 11-06-2013, 07:22 PM   #4
dilandau
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there is a bolt in the center of the left side. if you loosen that and wiggle the cases it might just close up- then tighten and you are good. if that does not work:

remove the hose going to the carb- will need to loosen carb boot hose clamps to help get it out. Then pull the air filter cover off.

the air filter will just fall out probably- might as well make sure its clean. then stick it all back on and make sure to secure the left side cover behind the little "tab" that is bolted to the engine block- also holding the transmission on. its just a little rectangular piece of metal. slide it behind and make sure its all lined up well with the right side.

replace long bolt- helps if you get a flashlight and look up inside the cover as you do so.

put back airhose and tighten clamps.
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Old 11-06-2013, 07:46 PM   #5
Pokie
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Check and make sure the air filter is mounted properly on it's pins. The covers will splay like this when the filter isn't in properly, often the filter is between the pins (squashed) rather than on the pins.
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Old 11-06-2013, 10:00 PM   #6
bmwhacker
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Quote:
Originally Posted by Pokie View Post
Check and make sure the air filter is mounted properly on it's pins. The covers will splay like this when the filter isn't in properly, often the filter is between the pins (squashed) rather than on the pins.

If the filter body is not sealing against the sides of the housing properly you'll be sucking unfiltered air (& likely dirt) into the engine. Not a good thing.
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