Gap between Carb inlet and AIr Filter mounting tube

Porky7064 · 06-13-2016, 09:53 PM

Hello all,

Picked up a '76 Model D or D4. Got a rebuilt engine due to the clutch side crankshaft coming right out of the counterweight inside the crankcase. When disassembling and now assembling I never noticed anything in between the air filter tube that slides over the 4 really long mounting bolts and carb that slid on before it and there is a noticeable gap that im thinking would completely disregard the need for an air filter because air would be able to get straight into the carb. Is there anyone with a parts manual or any knowledge if there is a gasket that should go in between the two?

Any help would be appreciated, like to get the old girl back on the road!

tew45 · 06-13-2016, 11:01 PM

You may not be assembling it correctly. Download the manual and see how it assembles or the carb gasket/ring could be missing.

sharky55 · 06-14-2016, 05:23 AM

http://www.buggiesgonewild.com/gas-h...rt-manual.html

73eldo · 06-14-2016, 12:28 PM

I think the area you are talking about is supposed to have a fairly thick rubber washer. There is also about a 1" thick fiberboard like spacer between the carb and intake. If that was missing I could see the spacing being wrong. That spacer is a straight spacer so everything would still align if it was missing. I have been told those are hard to find if its missing.

jonr3 · 06-14-2016, 02:03 PM

Quote:

Originally Posted by 73eldo

I think the area you are talking about is supposed to have a fairly thick rubber washer. There is also about a 1" thick fiberboard like spacer between the carb and intake. If that was missing I could see the spacing being wrong. That spacer is a straight spacer so everything would still align if it was missing. I have been told those are hard to find if its missing.

They are hard to find. Mine was missing it as well. Luckily the PO had about 6 thick carb gaskets that he aligned and used. I'm doing the same thing until I can locate (or make) the original spacer.

Porky7064 · 06-16-2016, 11:07 PM

Thanks for the help gents. It definitely wasnt there when we took it apart but we found a rubber o-ring that fits in there pretty decent. Just fired the old girl up tonight and tomorro we are ordering a new carb. We had to make a test run to make sure it was gonna run before we went to far seeing as it was a rebuild from a guy we didnt know. Anyone ever had issues with the clutch pouring the oil out around that big outside o-ring? Either that o-ring is shot or the housing might be warped.

tew45 · 06-17-2016, 12:11 AM

Or you might have a bad ring. If you have an industrial supply store near by a new O ring will cost around $2.00. It is a Buna-N 163.

06-13-2016, 09:53 PM	#1
Porky7064 Not Yet Wild Join Date: May 2016 Posts: 2	Gap between Carb inlet and AIr Filter mounting tube Hello all, Picked up a '76 Model D or D4. Got a rebuilt engine due to the clutch side crankshaft coming right out of the counterweight inside the crankcase. When disassembling and now assembling I never noticed anything in between the air filter tube that slides over the 4 really long mounting bolts and carb that slid on before it and there is a noticeable gap that im thinking would completely disregard the need for an air filter because air would be able to get straight into the carb. Is there anyone with a parts manual or any knowledge if there is a gasket that should go in between the two? Any help would be appreciated, like to get the old girl back on the road!
Porky7064 Not Yet Wild Join Date: May 2016 Posts: 2

06-13-2016, 11:01 PM	#2
tew45 Gone Wild Join Date: Aug 2007 Location: North Texas Posts: 2,312	Re: Gap between Carb inlet and AIr Filter mounting tube You may not be assembling it correctly. Download the manual and see how it assembles or the carb gasket/ring could be missing.

06-14-2016, 05:23 AM	#3
sharky55 Not Yet Wild Join Date: May 2016 Location: Ohio Posts: 63	Re: Gap between Carb inlet and AIr Filter mounting tube http://www.buggiesgonewild.com/gas-h...rt-manual.html

06-14-2016, 12:28 PM	#4
73eldo Gone Wild Join Date: Jul 2014 Location: St. Paul Minneapolis MN USA Posts: 522	Re: Gap between Carb inlet and AIr Filter mounting tube I think the area you are talking about is supposed to have a fairly thick rubber washer. There is also about a 1" thick fiberboard like spacer between the carb and intake. If that was missing I could see the spacing being wrong. That spacer is a straight spacer so everything would still align if it was missing. I have been told those are hard to find if its missing.

06-16-2016, 11:07 PM	#6
Porky7064 Not Yet Wild Join Date: May 2016 Posts: 2	Re: Gap between Carb inlet and AIr Filter mounting tube Thanks for the help gents. It definitely wasnt there when we took it apart but we found a rubber o-ring that fits in there pretty decent. Just fired the old girl up tonight and tomorro we are ordering a new carb. We had to make a test run to make sure it was gonna run before we went to far seeing as it was a rebuild from a guy we didnt know. Anyone ever had issues with the clutch pouring the oil out around that big outside o-ring? Either that o-ring is shot or the housing might be warped.
Porky7064 Not Yet Wild Join Date: May 2016 Posts: 2

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06-17-2016, 12:11 AM	#7
tew45 Gone Wild Join Date: Aug 2007 Location: North Texas Posts: 2,312	Re: Gap between Carb inlet and AIr Filter mounting tube Or you might have a bad ring. If you have an industrial supply store near by a new O ring will cost around $2.00. It is a Buna-N 163.

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