| [ Total Views: 1287 | Total Replies: 8 | Thread Id: 77585 ] |
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 DubCty
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| posted on July 3rd, 2009 at 08:20 PM |
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Pre-heater pipes the big debate!!!
G’day
Is it OK to cut the pre-heater pipes of my 1600-now 1850cc twin port beetle motor?
I have asked around a lot of VW enthusiasts and everyone seems to have a different opinion. So I thought I would through it up on here before I attack
my inlet manifold with a saw.
I know that this may leed to my inlet manifold icing up but when I talk to people that have done it they say it’s only a problem if the car sits
idling for 10 or so minutes.
Any info is appreciated
Cheers Alastair
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 vw54
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| posted on July 3rd, 2009 at 08:34 PM |
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depends on what carby you have fitted
as yr in Tassie i wouldnt suggest it
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DubCty
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| posted on July 3rd, 2009 at 08:48 PM |
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I am running the original carby at the moment with plans of a single twin port Webber.
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grumble
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| posted on July 3rd, 2009 at 08:53 PM |
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Silly question but Why? Vw spent thousands of dollars developing these engines,I have seen them ice up and stall in cold weather and it is a pain in
the proverbial waiting for them to thaw out.I suggest that you leave them in place as they also stabilise the manifold.
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Anthiron
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| posted on July 3rd, 2009 at 09:02 PM |
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bad idea. there, question answered,
you will regret it if you do.
62/60 model bug eye baja bug, (Full Build in Progress)
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DubCty
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| posted on July 3rd, 2009 at 09:07 PM |
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Thanks for the quick feedback. Looks like they’re staying on.
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 Bizarre
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| posted on July 3rd, 2009 at 10:10 PM |
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Why would you??
If they are there leave them on
If you really want them off get a stuffed one and use that.
Dont cut up a good one
(well its yours cut the car if you like  )
My first comment still stands - why??
Futue te ipsum!!!
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DubCty
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| posted on July 4th, 2009 at 12:23 AM |
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The inlet manifold that I pulld off the motor has corroded through in several spots. And I don’t want to buy a new inlet manifold as I only plan to
use this carby to run the motor in.
Luckily I have another inlet manifold in much better condition (no holes) so the plan is to use that manifold instead of cutting the rooted pre heater
pipes off the old manifold.
How stupid do you think I am, cutting up a perfectly good manifold .
I think I will still try it with them cut off to see how it does affect the motor as I know of many people cruising around tassie without them.
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Joel
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| posted on July 4th, 2009 at 09:57 AM |
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not this one again
as grumble said they wouldnt have it if it wasnt needed
it was one of the really old books, i think the how to hotrod vw engines that reckon they got a power improvement by slipping a coke can ontop of the
gasket to block it off.....
icing still happends even in warmer climates, its just due to the change of state, the fuel going from a liquid to a vapour makes it refrigerate
i had a single weber without preheat but with an electric heater and even in the middle of summer the difference to around town driving and economy
was dramatically improved. highway driving wasnt much different
also unless you have one of those rarer 71-72 manifolds that bolt to the case they also use the preheat pipes for support. cut off theres nothing
holding it in place except the rubber boots and all the movements causes them to fail alot sooner
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