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Generator brush covers
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crofty
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PostPosted: Wed Jul 19, 2006 11:14 am    Post subject: Generator brush covers Reply with quote

Anyone have a source for them? I need a pair for a 38amp gen.
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Desertbusman
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PostPosted: Wed Jul 19, 2006 11:42 pm    Post subject: Reply with quote

Most VW parts houses have them. Last one I bought was from AirHead Parts. Supposidly the same one fits all the gens. Just went to try it on my 38A gen and now can't find it. Not sure what the real ticket is but I only use them on the top slot. Thinking that with the bottom open the gen will get better internal cooling. And I havn't had problems with nuts and bolts falling upwards.
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Desertbusman
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PostPosted: Sat Jul 29, 2006 1:33 am    Post subject: Reply with quote

Just finished rebuilding my 38amp generator tonight. Found the lost cover and went to put it on. No Way! The openings are much shorter than the cover. The cover is the 111-903-531 that everyone sells and is supposed to fit a bus gen. My bus gen is a 211-903-031-D 38A and the opening is 2-7/16" long. The cover is the same one that fits my bug which is a 30A. Didn't measure a 30A gen, but the opening probably is around 3/4" longer.
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steponmebbbboom
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PostPosted: Sat Jul 29, 2006 5:41 am    Post subject: Reply with quote

Those plastic covers are goddamn pieces of crap. Even if they did fit they would block airflow and melt when the gennie got hot and start a fire.

The only cover I ever saw that made any sense was on a Beetle and was a single wraparound steel one with round cooling holes in it. If you want something like that go to a shop that rebuilds electric motors and find one that fits.

that said, someone have a factory photo of a new one?
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Desertbusman
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PostPosted: Sat Jul 29, 2006 6:39 am    Post subject: Reply with quote

steponmebbbboom wrote:
Those plastic covers are goddamn pieces of crap. Even if they did fit they would block airflow and melt when the gennie got hot and start a fire.


Yea, that's the way to tell it Laughing







like it isn't.

8 years, run daily, no problem. Maybe they only work in cold climates like the Arizona desert where everything in the engine compartment stays nice and cool. And it has paid off to use one. When the carb fitting blew out, pumped directly onto the generator and didn't ignite. Woops, the cover didn't start a fire, it prevented one.
But I surely wouldn't put a cover on the bottom opening. The cooling air thru the generator from the fan needs an exit path.
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steponmebbbboom
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PostPosted: Sat Jul 29, 2006 7:40 am    Post subject: Reply with quote

How is that plastic cover going to keep gas out? Gasoline has no surface tension and creeps through the tiniest cracks.

Where did you get your covers from? I have the same fitment issues with my covers I bought years ago that everyone else seems to. Theyre too goddamn big. Got a part number and/or source?
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Desertbusman
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PostPosted: Sat Jul 29, 2006 6:14 pm    Post subject: Reply with quote

The p/n I gave is the one that supposidly fits everything acording to all the suppliers. Undoubtably it doesn't fit a 38A. But it does fit a 30A great. Which is also the gen that suppliers seem to have listed for the bus. And probably about everyone that has replaced a bus gen has ended up with a 30A.
Why were you trying to install a cover if you thought it was going to start a fire? If you were attempting to install 2 covers they probably would have blocked off the internal forced air cooling.
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steponmebbbboom
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PostPosted: Sun Jul 30, 2006 7:58 am    Post subject: Reply with quote

I just tried to install one and got pissed off. They now sit in the utensil drawer of my combo cabinet. Five bucks and theyre yours!!!
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pyrOman
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PostPosted: Sun Jul 30, 2006 8:47 am    Post subject: Reply with quote

As with EVERYTHING else in the fatchick forum, been discussed and re-discussed at least umpteenth times. But the last reasonable response was as mentioned above, having the top cover on but not the lower one. Cool



Step, are you sure you are attempting a proper install? Confused From my experience they snap right in but one way only since the "legs" are off-set. Wink
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steponmebbbboom
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PostPosted: Sun Jul 30, 2006 10:07 am    Post subject: Reply with quote

As mentioned the slots are different between the 30 and 38 amp gennie.

When was this last discussed? Confused
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Desertbusman
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PostPosted: Sun Jul 30, 2006 8:44 pm    Post subject: Reply with quote

steponmebbbboom wrote:
I just tried to install one and got pissed off. They now sit in the utensil drawer of my combo cabinet. Five bucks and theyre yours!!!


I still don't understand why you attempted to install one if you think they are so harmful and have no purpose. I just shortened mine to fit.

Five bucks? They're 1.95 here.
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steponmebbbboom
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PostPosted: Mon Jul 31, 2006 4:34 am    Post subject: Reply with quote

Because I had owned my bus for about three weeks at the time. I now know better.

The wraparound steel one will keep foreign objects out of the brush slots without impeding airflow. Nothing will keep gasoline out except maybe a piece of rubber sheeting but then you have blocked airflow through the slots. You like em, roll em! Im not about to do a chop job on one to get it in when there are better covers available if one knows where to look.
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ncstagger
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PostPosted: Fri Feb 08, 2013 8:24 pm    Post subject: Reply with quote

I just got a pair of these plastic covers to go on a 30A. They dont really fit all that great but I was able to get them on.

Haven't decided yet if I'll keep them, I think if I do I'm just going to run the top one.
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old DKP driver
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PostPosted: Fri Feb 08, 2013 10:42 pm    Post subject: generator brush cover Reply with quote

That's cool that you found the UPPER only generator brush cover
and now you have an extra one too. Shocked

There is only 1 upper cover to keep stuff from falling into the generator.
Never was 111 903 531 installed on the bottom.
It shouldn't even fit if your gen. is installed right.
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SGKent Premium Member
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PostPosted: Fri Feb 08, 2013 10:52 pm    Post subject: Reply with quote

400,000 miles without them. Guess I was a lucky guy.
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ncstagger
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PostPosted: Fri Feb 08, 2013 11:11 pm    Post subject: Re: generator brush cover Reply with quote

old DKP driver wrote:
That's cool that you found the UPPER only generator brush cover
and now you have an extra one too. Shocked

There is only 1 upper cover to keep stuff from falling into the generator.
Never was 111 903 531 installed on the bottom.
It shouldn't even fit if your gen. is installed right.


Well that makes sense, I didn't see a reason for having one on the bottom.

Interestingly, the cover fits more securely in the bottom. But looking carefully at it, the inner pulley piece would probably rub on it.
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Resto thread here: http://www.thesamba.com/vw/forum/viewtopic.php?t=549162

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bigbore
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PostPosted: Sat Feb 09, 2013 3:34 am    Post subject: Reply with quote

In all my years of working on vw's and that go's back into the 70's I have never seen one on a 38 amp and I have never seen the need.
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