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25-03-2008, 01:39 PM | #1 | ||
Fiat POWAAH!
Join Date: Nov 2005
Location: Western Australia
Posts: 2,309
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Hi guys, The old ute is up to it's tricks again and refuses to start, it turns over but won't fire. I recently replaced the crank angle sensor because this was playing up. Also the plugs and leads are pretty new. I've deduced that there is no spark getting to the leads, this makes me think the coil pack is gone, but from what i've read, they seem to make the car run rough before they completely die. Is this true or can they let go without any warning?
Another quick question, which may tie it all in, is when i took the number 5 lead off the plug, the contact was coated in a type of blueish powder. Has anyone seen this before? could this play some part in why the car won't start? Cheers for any help!! Chad |
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25-03-2008, 01:41 PM | #2 | ||
Sales Representative
Join Date: Mar 2007
Location: Young
Posts: 5,314
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Are the leads blue?
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25-03-2008, 01:46 PM | #3 | |||
Fiat POWAAH!
Join Date: Nov 2005
Location: Western Australia
Posts: 2,309
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Quote:
Looks almost like copper oxide |
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25-03-2008, 01:48 PM | #4 | |||
Sales Representative
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Quote:
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Project InfernoSR - Back Burner Project FeralTerra - No longer Project Fairmont Prodigy - Sold Thanks go to: MY WIFE! Bathurst Brakepro Undacar eBay!! |
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25-03-2008, 01:59 PM | #5 | |||
Fiat POWAAH!
Join Date: Nov 2005
Location: Western Australia
Posts: 2,309
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Quote:
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25-03-2008, 02:07 PM | #6 | ||
Luxo rocket
Join Date: Dec 2007
Posts: 94
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Is it he same fury stuff you sometimes get on the battery terminals - caused by overcharging.
Best way to get rid of it is very hot water and carb soda - mix it up and pour it on 2 table spoons to a cup of hot water
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2006 BF2 GTP in Vixen |
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25-03-2008, 02:15 PM | #7 | ||
FF.Com.Au Hardcore
Join Date: Aug 2006
Location: Salamander Bay
Posts: 5,427
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replace coil pack and leads if you have copper corosion ( blue residue) and yes a coilpack can just die without warning
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[SIGPIC][/SIGPIC]
Everyone starts off with a bag full of luck and an empty bag of experience. The trick is to fill the experience bag before the luck bag is empty. "It is better to remain silent and be thought a fool than to speak out and remove all doubt." Start a new career as a bus driver Rides: FG2 XR6 stock at this stage but a very nice ride xc 4 DOOR X CHASER 5.8 UNDER RESTO |
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25-03-2008, 02:52 PM | #8 | |||
Fiat POWAAH!
Join Date: Nov 2005
Location: Western Australia
Posts: 2,309
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Quote:
Also, what would cause the corrosionon the leads? |
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25-03-2008, 05:29 PM | #9 | ||
FF.Com.Au Hardcore
Join Date: Aug 2006
Location: Salamander Bay
Posts: 5,427
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most likely cause would be the leads not on properly so moisture gets into the connection
__________________
[SIGPIC][/SIGPIC]
Everyone starts off with a bag full of luck and an empty bag of experience. The trick is to fill the experience bag before the luck bag is empty. "It is better to remain silent and be thought a fool than to speak out and remove all doubt." Start a new career as a bus driver Rides: FG2 XR6 stock at this stage but a very nice ride xc 4 DOOR X CHASER 5.8 UNDER RESTO |
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25-03-2008, 05:37 PM | #10 | ||
Regular Member
Join Date: Aug 2006
Posts: 165
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Could it be Smurf cocaine?
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25-03-2008, 05:48 PM | #11 | ||||
Fiat POWAAH!
Join Date: Nov 2005
Location: Western Australia
Posts: 2,309
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Quote:
LOL i tried it, all it did was make my voice really high pitched Quote:
Cheers for the help |
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25-03-2008, 06:16 PM | #12 | ||
new kid
Join Date: Jun 2007
Location: vic
Posts: 25
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brush it all off with wire brush and put vasoliine on it, put some on ur battery terminals as well works better than the blue spray
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25-03-2008, 06:39 PM | #13 | ||
FG XR6 Ute & Sedan
Join Date: Oct 2006
Location: Bibra Lake WA
Posts: 23,612
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The blue powder is oxidation (corrosion) and it usually occurs when you mix metals (with leads usually aluminium and copper but sometimes gold and silver - a common problem with plug in RAN in PCs). It usually means that the metal of you plug leads is different than the spark plugs tops you are clipping them onto or the distributor cap if its at the other end. The oxidation will cause poor electrical connections and the symptoms you have. So if possible and use leads, plugs and caps that use joining parts of the same metal. Also, as instructed in the Ford factory manual, use dielectric grease (often also called tune-up grease for obvious reasons) on the tops of the plugs and distributor cap when you replace the plugs lead or cap. (e.g http://tds.loctite.com/tds5/docs/DIEG-EN.pdf ). In addition to preventing the oxidation, this grease makes removing the plug leads from the plugs easier reducing the risks of a broken lead core.
Clean the oxidation off with a toothbrush, small copper wire brush or similar and apply the dielectric grease and it should all start performing as normal. But next time you have to replace part of this system try and buy bits with compatible metals.
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regards Blue Last edited by aussiblue; 25-03-2008 at 06:47 PM. |
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25-03-2008, 06:50 PM | #14 | ||
FG XR6 Ute & Sedan
Join Date: Oct 2006
Location: Bibra Lake WA
Posts: 23,612
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PS Vaseline wont cut it in the high temps experienced at the top of sparke plugs (it will melt).
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regards Blue |
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25-03-2008, 11:01 PM | #15 | |||
FF.Com.Au Hardcore
Join Date: Aug 2006
Location: Salamander Bay
Posts: 5,427
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on battery terminals this is fine but once you get corosion in a high voltage part like a coil best to chuck it for reliability sake
Quote:
__________________
[SIGPIC][/SIGPIC]
Everyone starts off with a bag full of luck and an empty bag of experience. The trick is to fill the experience bag before the luck bag is empty. "It is better to remain silent and be thought a fool than to speak out and remove all doubt." Start a new career as a bus driver Rides: FG2 XR6 stock at this stage but a very nice ride xc 4 DOOR X CHASER 5.8 UNDER RESTO |
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25-03-2008, 11:56 PM | #16 | ||
FG XR6 Ute & Sedan
Join Date: Oct 2006
Location: Bibra Lake WA
Posts: 23,612
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Dielectric grease was developed for coating the outer insulators on the sparkplugs of WWII turbocharged fighter planes to prevent voltage leaking (arcing to ground) in the thin atmosphere at the altitudes these aircraft were capable of attaining. ( see http://www.apriliaforum.com/forums/s...ad.php?t=98948 the only reference I could Google up but I have read this story before). So an added benefit might be more reliability next time you drive your car up Mt Everest.
The other problem with Vaseline and non-dielectric greases is that not only does it melt but it can become conductive and this mix of properties will cause ignition failure by providing a leakage path for the sparking current.
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regards Blue Last edited by aussiblue; 26-03-2008 at 12:12 AM. |
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26-03-2008, 12:59 PM | #17 | ||
Fiat POWAAH!
Join Date: Nov 2005
Location: Western Australia
Posts: 2,309
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Cheers for all the help guys, I will be lubing up the terminals this arvo and also hopefully have the ute back onthe road.
Chad |
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26-03-2008, 01:57 PM | #18 | |||
Sales Representative
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Location: Young
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Quote:
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Project InfernoSR - Back Burner Project FeralTerra - No longer Project Fairmont Prodigy - Sold Thanks go to: MY WIFE! Bathurst Brakepro Undacar eBay!! |
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26-03-2008, 02:49 PM | #19 | |||
Fiat POWAAH!
Join Date: Nov 2005
Location: Western Australia
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Quote:
If no ones looking it can be : |
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26-03-2008, 03:03 PM | #20 | ||
Walking with God
Join Date: Mar 2005
Location: Melbourne
Posts: 7,321
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LOL!
Gk
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