Heat Riser Tubes???

1,769 posts · joined Oct 2004 · 21 May 2006, 10:17 pm

#491152

Can anybody tell me if the heat riser tubes on a type 1 inlet manifold are 1 piece of tubing that runs right through the cast aluminium section or if they are 2 pieces of tubing that go in each side of the aluninium section with a hole through the middle connecting them.

I want to fix up the manifold on my beetle (not keen on $160 plus for a newy) and just wanted a heads-up before I break out the grinding implements.

Cheers
Brendan

Calling all NSW Mid North Coast Veedubbers

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Mid North Coast VW

toplessbug Fahrvergnugen

879 posts · joined Aug 2002 · 21 May 2006, 10:59 pm

#491187

before you break into grind and cut mode get a drill and an old piece of pipe snake and sharpen the end ,whack it in the drill and work it thru the carbon ...if you cant find a snake try a piece of flex curtain rod spring stuff .saves a lot of grief later:beer:beer:beer

Don't argue with an idiot; people watching may not be able to tell the difference.

geodon Wolfsburg Wizard

478 posts · joined Aug 2002 · 22 May 2006, 7:55 am

#491248

Try an old clutch cable in ur high speed drill. It will depend on the severity of the impaction- I've never had much luck!
For me it has been nec to cut at the dog-legs going to the exhaust BUT NOT RIGHT THRU then bend them out of the way for a LONG drill bit to go thru the carbon.
A tip: Mount the manifold & tack weld the cuts before re-welding properly with the manifold on a bench. It makes lining up the manifold bolts easier!

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 · 22 May 2006, 12:35 pm

#491302

I found an easier way....................just fit twin Kadrons !!!🙅

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 · 22 May 2006, 6:03 pm

#491397

i cleaned mine out years ago when i still had a single carb set up by sitting it upside down and filling it with a very harsh cleaner (was called activeshift is almost acid LOL) overnight and the clutch cable in the drill trick the next day worked a treat
the standard ones were one piece but alot of after market replacements are in 2 pieces so they can be fitted and removed more easily

why do i see so many beetles with them cut off:duh
they barely stop icing when clean with a standard exhaust:o

Joel

Special Air Service Chief "Gunna"

1,769 posts · joined Oct 2004 · 22 May 2006, 9:10 pm

#491485

Craig Torrens wrote:I found an easier way....................just fit twin Kadrons !!!🙅

Craig,
Will they work on a 1300twinport or would they be to much?
Cheers
Brendan

Calling all NSW Mid North Coast Veedubbers

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Mid North Coast VW

Special Air Service Chief "Gunna"

1,769 posts · joined Oct 2004 · 22 May 2006, 9:13 pm

#491488

DUB74L wrote:why do i see so many beetles with them cut off:duh
they barely stop icing when clean with a standard exhaust:o

Joel

Yeah mine have rusted through so Im having icing probs at the moment & want to fix this shit up.

Cheers
Brendan

Calling all NSW Mid North Coast Veedubbers

Click Below

Mid North Coast VW

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 · 25 May 2006, 10:11 pm

#492738

Special Air Service wrote:
Craig Torrens wrote:I found an easier way....................just fit twin Kadrons !!!🙅
Craig,
Will they work on a 1300twinport or would they be to much?
Cheers
Brendan

Never tried ! I think they would, but probably not worth the expense etc for the minimal gain. Could always fit 1600 p&b's ??

mackaymanx Custom Title Time!

1,611 posts · joined Jan 2006 · 26 May 2006, 8:31 am

#492836

I did this last week oxy, hammer and a lot of patience. I found heating (red hot) and quenching helped loosen deposits.

Quote of the week
"Do I wish to send them to you again, nope, no interest can't be bothered really, to much hassle for little or no return."

[IMG]https://www.vw-mplate.com/mplate2-18600.png[/IMG]

shaihulud Custom Title Time!

1,448 posts · joined Nov 2005 · 27 May 2006, 1:15 am

#493161

The heat riser tubes are nearly always blocked, so they rarely work and are very difficult to clean. In winter I used to fit a warm air pipe from behind the engine to the air cleaner. The icing up and the coughing and spluttering stopped. Beetles have a provision for warm air intake and if yours is not connected, then do so in winter.