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bjoy
Samba Member
Joined: March 23, 2007
Posts: 331
Location: NC
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 Posted: Sun Jun 17, 2012 7:44 pm Post subject: another heat riser question |
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have a used manifold for my 36hp i am in the process of clearing out the build up in the heat risers.
does anybody know what the inside of the straight part of the tube looks like, is it just a straight pipe with consistent inside diameter?
does it just go straight through to the other side? theoretically, should you be able to run something in one end and out the other?
i'm trying to clear it with a drill and an old choke cable along with some carb cleaner... the cable gets a bit past the bend on both ends, but thats about it...
thanks, |
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nlorntson
Crazy VW Lady
Joined: March 13, 2004
Posts: 1250
Location: Twin Cities, MN
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| Posted: Sun Jun 17, 2012 8:50 pm Post subject: |
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Calling John Henry....
John, you there? |
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bjoy
Samba Member
Joined: March 23, 2007
Posts: 331
Location: NC
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| Posted: Mon Jun 18, 2012 3:42 am Post subject: |
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| i know, i probably should have just PM'd him! |
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bjoy
Samba Member
Joined: March 23, 2007
Posts: 331
Location: NC
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| Posted: Sat Jun 23, 2012 1:36 pm Post subject: |
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| anybody? |
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Snort
Samba Member
Joined: April 02, 2005
Posts: 1178
Location: Seattle, WA
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| Posted: Sat Jun 23, 2012 4:21 pm Post subject: |
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| The heat riser does go straight through, but I believe where it contacts the intake manifold it has a concave impression, so the inside diameter is smaller on that part. Nevertheless, you should be able to get your cable or other cleaning device to run all the way through from one side to the other. |
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pwmcguire
Samba Member
Joined: January 30, 2011
Posts: 153
Location: Kennesaw GA
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| Posted: Sun Jun 24, 2012 12:26 pm Post subject: Re: another heat riser question |
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| bjoy wrote: | | i'm trying to clear it with a drill and an old choke cable along with some carb cleaner... the cable gets a bit past the bend on both ends, but thats about it..., |
A 70's clutch cable is much stiffer you can push it without it flexing, and keep working at it, it's not easy. |
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bjoy
Samba Member
Joined: March 23, 2007
Posts: 331
Location: NC
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| Posted: Mon Jun 25, 2012 3:22 am Post subject: |
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| great, thanks guys... exactly what i needed to know... |
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