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#1
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preheater troubles
basically a stock motor with an EMPI 3417 exhaust. preheater tubes are
connected, but does little work keeping the manifold warm. Most likely from the less backpressure pushes little exhaust gases though now. Is there such a thing as an electric heater blanket I can wrap the manifold in or maybe an electric heated carb base gasket? -- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: If privacy is outlawed, only outlaws will have privacy. -- Philip Zimmermann iEYEARECAAYFAk7RZqsACgkQlZadkQh/RmFqrwCg7E/ihw6UQFPEttc+gpcNBFcb bvEAoJOu92/r5dMCD+7Pztkglymr+Ig3 =IBZf -----END PGP SIGNATURE----- |
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#2
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preheater troubles
Thermally insulating preheater tube to conserve the little heat you do have
wouldnt work?. Must be darn cold at your place! John "David Gravereaux" > wrote in message ... |
#3
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preheater troubles
They made a manifold heater.
Dont know if you can still get them though http://www.cjroberts.com/steve/ht/imdu.htm On 26/11/11 22:22, David Gravereaux wrote: > basically a stock motor with an EMPI 3417 exhaust. preheater tubes are > connected, but does little work keeping the manifold warm. Most likely > from the less backpressure pushes little exhaust gases though now. > > Is there such a thing as an electric heater blanket I can wrap the > manifold in or maybe an electric heated carb base gasket? |
#4
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preheater troubles
Also, make sure the pre heat tubes a clean and not blocked.
some frayed steel wire (a bit of clutch cable ? ) in a drill, will help clean them out. On 26/11/11 22:22, David Gravereaux wrote: > basically a stock motor with an EMPI 3417 exhaust. preheater tubes are > connected, but does little work keeping the manifold warm. Most likely > from the less backpressure pushes little exhaust gases though now. > > Is there such a thing as an electric heater blanket I can wrap the > manifold in or maybe an electric heated carb base gasket? |
#5
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preheater troubles
In article >,
tricky > wrote: > They made a manifold heater. > > Dont know if you can still get them though > > http://www.cjroberts.com/steve/ht/imdu.htm We had something like that in the frozen north of Minnesota, but it was used in our underwear. Back to earth - make sure your heat risers are clear. Sometimes it is easier to buy new ones - the two piece models because you need not muck with the alternator or generator interfering - and make sure your muffler has the sucking tube by it. Some Mexican mufflers have it on the wrong side! |
#6
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preheater troubles
On 11/27/2011 09:48 AM, tricky wrote:
> They made a manifold heater. > > Dont know if you can still get them though > > http://www.cjroberts.com/steve/ht/imdu.htm Thanks for answering the question. Yeah, that's the blanket thing I remember. It doesn't seem to be well accepted, nor available now (anymore). Most folks seemed to have thought of it as a novelty 'cause it didn't do much. I think I'll fab something with power resistors, JB weld and a pulse-width driver with thermal feedback. I'm good with electronics. To everyone else, yes, the passage is clear. reread my first post where I say I'm using an aftermarket exhaust. https://www.mofoco.com/item_images/3417b.JPG -- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: If privacy is outlawed, only outlaws will have privacy. -- Philip Zimmermann iEYEARECAAYFAk7UXwkACgkQlZadkQh/RmHRqACeMbUxyEHLiifDfr7ifC7+izsc 1XwAn3+XvD/2nWVzJRCuuCGmS640GCCs =L5+j -----END PGP SIGNATURE----- |
#7
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preheater troubles
Ubiquitous 555, 3055???? Great project for a while!
John "David Gravereaux" > wrote in message ... |
#8
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preheater troubles
On Nov 29, 12:25*am, "John" > wrote:
> Ubiquitous 555, 3055???? Great project for a while! > * * * * * * * * * * John > > "David Gravereaux" > wrote in message > > ... lol I know those numbers. ne555, 2n3055. Or more interestingly, just use output transistor as the load, but delicate care required and some funky adapter plate I have no idea how to fab. flat transistors don't mount to a round pipe easy. I'm stuck pondering that. Shape it in soft plastic as the mother for a mold to cast in aluminum? Or 3d input the mother and have it CNC'd? |
#9
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preheater troubles
I recently retired from medical electronics section in a hospital. I used to
have dozens of Heaters cables for Fisher and Paykel Humidfiers lying around. These were essentially about 2 metres of heater cable that laid inside in ventilator tubing to stop condensation. They were rated ~ 15 watts and could run off 12 volts. ( I had a mate with a motorcycle who sewed a few into his bike jacket and he ran that off bike= heated jacket!). I was thinking wrap one or two of those around pipe below carby. Got any contacts in the Biomedical section at your local hospitals? Generally the assemblies failed at the plug end and heater itself was totally intact. "davygrvy" > wrote in message ... On Nov 29, 12:25 am, "John" > wrote: > Ubiquitous 555, 3055???? Great project for a while! > John > > "David Gravereaux" > wrote in message > > ... lol I know those numbers. ne555, 2n3055. Or more interestingly, just use output transistor as the load, but delicate care required and some funky adapter plate I have no idea how to fab. flat transistors don't mount to a round pipe easy. I'm stuck pondering that. Shape it in soft plastic as the mother for a mold to cast in aluminum? Or 3d input the mother and have it CNC'd? |
#10
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preheater troubles
PS- heater cable is insulated obviously, about 3-4 mm
diameter. Would just have to be wound on. "John" > wrote in message ... >I recently retired from medical electronics section in a hospital. I used >to have dozens of Heaters cables for Fisher and Paykel Humidfiers lying >around. These were essentially about 2 metres of heater cable that laid >inside in ventilator tubing to stop condensation. They were rated ~ 15 >watts and could run off 12 volts. ( I had a mate with a motorcycle who >sewed a few into his bike jacket and he ran that off bike= heated jacket!). >I was thinking wrap one or two of those around pipe below carby. Got any >contacts in the Biomedical section at your local hospitals? Generally the >assemblies failed at the plug end and heater itself was totally intact. > "davygrvy" > wrote in message > ... > On Nov 29, 12:25 am, "John" > wrote: >> Ubiquitous 555, 3055???? Great project for a while! >> John >> >> "David Gravereaux" > wrote in message >> >> ... > > lol I know those numbers. ne555, 2n3055. Or more interestingly, > just use output transistor as the load, but delicate care required and > some funky adapter plate I have no idea how to fab. flat transistors > don't mount to a round pipe easy. I'm stuck pondering that. Shape it > in soft plastic as the mother for a mold to cast in aluminum? Or 3d > input the mother and have it CNC'd? > |
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