cleaning an AFM hotwire - WD40 etc ok to use? - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

gtr mart · 12th July 2005, 11:50 AM

Not for the skyline but another car I own with a hotwire afm. I think its covered in oil and I want to clean it to try and sort an occasional dodgy high idle.

not sure what the hotwire is made of or if covering it in brake cleaner or WD40 would be fatal.

Anyone got any idvice?

Thanks
Martin

Pikey · 12th July 2005, 12:05 PM

Carb cleaner is the stuff to use IIRC. Although I might be wrong.

NigelR32 · 12th July 2005, 02:01 PM

Martin,

A GENTLE application of carb cleaner will do the trick. Dont be tempted to try doing it on the car either. Take the AFM off, and spray gently over the wire, so the excess runs straight out through the body.

Your high idle is probably due to a sticky idle valve. Again, clean with carb cleaner.

Regards

gtr mart · 12th July 2005, 02:33 PM

Thanks chaps. The thing is, the hot wore appears to be connected onto the throttle meaning removing it would be a swine. I can get good access to it and just after it is the butterfly meaning nothing will get past that so i could just mop up any residue after.

I dont have any carb cleaner - nor any carbs for that matter so it would be a shame to have to buy some just for this. WOuld any alternative b ok - such as wd40 - brake cleaner / engine degreasant ie gunk?

or does it have to be that stuff?

cheers for the info so far

cheers
mart

Mookistar · 12th July 2005, 02:36 PM

only use carb cleaner. wd40 is NOT the same.

for the damage you could do, a couple of quid on a can of carb cleaner is no expense.

in my punto days, we just sprayed the AFM with carb cleaner, engine running!

lol

mook

lynchy · 12th July 2005, 03:20 PM

As said above, carb cleaner is the thing to use, definitely not WD40.

I don't understand what you are saying about the hot wire being connected onto the throttle. Unless you're using some kind of blow through system, the AFMs are located just after the air filter/s. I would definitely take them off to clean them. They're pretty straighforward to remove.

GTR-Zilla · 12th July 2005, 05:03 PM

can you spray direcly at the hotwire or will that break it? looks so fragile...

gtr mart · 12th July 2005, 07:33 PM

its not for the skyline. its a high power application.... a pug 306 cabriolet....

I held off doing it after work suspecting someone would say dont use wd etc etc

Think I will pop down halfrauds and get some carb cleaner. Will do the idle control valve too then.

cheers for the info

12th July 2005, 11:50 AM	#1 (permalink)
gtr mart GTR Register Member Join Date: Mar 2004 Posts: 1,637	cleaning an AFM hotwire - WD40 etc ok to use? Not for the skyline but another car I own with a hotwire afm. I think its covered in oil and I want to clean it to try and sort an occasional dodgy high idle. not sure what the hotwire is made of or if covering it in brake cleaner or WD40 would be fatal. Anyone got any idvice? Thanks Martin

12th July 2005, 02:01 PM	#3 (permalink)
NigelR32 GTR Register Member Join Date: Jul 2002 Location: RB26ville Posts: 916	Martin, A GENTLE application of carb cleaner will do the trick. Dont be tempted to try doing it on the car either. Take the AFM off, and spray gently over the wire, so the excess runs straight out through the body. Your high idle is probably due to a sticky idle valve. Again, clean with carb cleaner. Regards __________________ Nigel...........GTROC Member Now on '32GTR No.3

12th July 2005, 02:36 PM	#5 (permalink)
Mookistar ADMINISTRATOR Join Date: Feb 2004 Location: Living life 8min 50 secs at a time Posts: 10,409	only use carb cleaner. wd40 is NOT the same. for the damage you could do, a couple of quid on a can of carb cleaner is no expense. in my punto days, we just sprayed the AFM with carb cleaner, engine running! lol mook __________________ FOR ALL GTR FORUM RELATED ISSUES CONTACT THE ADMIN TEAM 'MOOKISTAR' OR 'MOLEMAN' SKYLINE FAQ'S!

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12th July 2005, 12:05 PM	#2 (permalink)
Pikey GTR Register Member Join Date: Feb 2004 Location: Cheltenham Posts: 4,151	Carb cleaner is the stuff to use IIRC. Although I might be wrong.

12th July 2005, 02:33 PM	#4 (permalink)
gtr mart GTR Register Member Join Date: Mar 2004 Posts: 1,637	Thanks chaps. The thing is, the hot wore appears to be connected onto the throttle meaning removing it would be a swine. I can get good access to it and just after it is the butterfly meaning nothing will get past that so i could just mop up any residue after. I dont have any carb cleaner - nor any carbs for that matter so it would be a shame to have to buy some just for this. WOuld any alternative b ok - such as wd40 - brake cleaner / engine degreasant ie gunk? or does it have to be that stuff? cheers for the info so far cheers mart

12th July 2005, 03:20 PM	#6 (permalink)
lynchy GTR Register Member Join Date: Aug 2004 Location: Nr. Chester Posts: 421	As said above, carb cleaner is the thing to use, definitely not WD40. I don't understand what you are saying about the hot wire being connected onto the throttle. Unless you're using some kind of blow through system, the AFMs are located just after the air filter/s. I would definitely take them off to clean them. They're pretty straighforward to remove.

12th July 2005, 05:03 PM	#7 (permalink)
GTR-Zilla Banned Join Date: May 2005 Location: London Posts: 2,099	can you spray direcly at the hotwire or will that break it? looks so fragile...

12th July 2005, 07:33 PM	#8 (permalink)
gtr mart GTR Register Member Join Date: Mar 2004 Posts: 1,637	its not for the skyline. its a high power application.... a pug 306 cabriolet.... I held off doing it after work suspecting someone would say dont use wd etc etc Think I will pop down halfrauds and get some carb cleaner. Will do the idle control valve too then. cheers for the info