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11-21-2015, 03:43 PM | #1 |
Drives: Yaris 2008 HB Join Date: Sep 2007
Location: CA
Posts: 43
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Engine Dust Cover
I just changed spark plugs (07 HB) and before I reinstall it, are there any pros or cons of not using the engine dust cover?
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11-21-2015, 04:12 PM | #2 |
Drives: '08 2zr swapped Vios M/T Join Date: Oct 2012
Location: Caledonia Ont.
Posts: 2,938
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There have been reports of water getting into the coil holes causing misfires. That being said most of those cases happened with the cover still on.
No real issues except dirt getting on valve cover as opposed to the dust cover. I remove mine during the summer and install it again in the winter This is more for aesthetics as I have my valve cover and coils painted. But that's about it
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No one ever wants to give a Yaris the point by... |
11-21-2015, 09:58 PM | #3 |
Drives: 2009 5-door, 5-speed Join Date: Sep 2011
Location: White Rock BC
Posts: 687
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I removed mine to let as much heat out. Any heat that stays under there is just making your ignition coils etc hotter, which will shorten their lives (as well as make wires and plastic connectors more likely to crack). The only reason I would consider putting it back on is if I was planning on driving through mud in it..... not likely. Also saves a teeny bit of weight.
Cheers. |
11-22-2015, 08:34 AM | #4 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Id put it back to protect the coils from moisture.
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Synthetic Oil: Its All In Your Head |
11-22-2015, 03:21 PM | #5 |
Drives: Yaris 2008 HB Join Date: Sep 2007
Location: CA
Posts: 43
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How would it protect them from moisture? So Cal car, so moisture is not a huge issue.
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11-22-2015, 03:29 PM | #6 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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I guess if it never rains theres no problem. But the wires going to the coils are pretty exposed under that plastic.
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Synthetic Oil: Its All In Your Head |
11-22-2015, 08:45 PM | #7 |
Drives: 2009 5-door, 5-speed Join Date: Sep 2011
Location: White Rock BC
Posts: 687
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Another pro would be that rodents are less likely to make their home there with the cover gone. They tend to nibble on things and can get very expensive.
The wires, connectors, and coils are all weather-resistant. The only viable way for water to cause an issue is if it gets under the seals of the coils and into the sparkplug tubes. Again, they are sealed to prevent this. I live in Vancouver BC. If water was an issue, I would definitely know about it. |
11-22-2015, 09:45 PM | #8 |
Drives: '08 2zr swapped Vios M/T Join Date: Oct 2012
Location: Caledonia Ont.
Posts: 2,938
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Dielectric grease on all electrical connectors, especially the spark plug tubes are a big help.
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No one ever wants to give a Yaris the point by... |
11-23-2015, 07:03 AM | #9 | |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Quote:
For this reason I always recommend, especially if you live in a rural area, you put traps out for the critters. Mice cant resist peanut butter so a spring trap baited with it works a treat. But poison and sticky traps also work good. I recommend all three. Also, check the traps at least weekly and reset if (when) you catch some. If you do catch mice this will alert you to the potential problem and you better take action. I think it unlikely for this to be a problem for something like a Yaris which is always in use. But if it sits in winter for any length of time....LOOK OUT!
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Synthetic Oil: Its All In Your Head |
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12-18-2015, 11:50 PM | #10 |
Mr. 155 and climbing
Drives: Seriously Modded 07 Sedan Join Date: Jun 2006
Location: In The Hotbox
Posts: 4,742
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I haven't used the OEM cover for 5 years
Sent from my XT1575 using Tapatalk
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12-19-2015, 06:53 AM | #11 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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I just serviced my plugs and there were dried out kernels of corn under the plastic cover! There isn't a farm within 30 miles of my house either.
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Synthetic Oil: Its All In Your Head |
12-19-2015, 09:12 AM | #12 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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12-19-2015, 12:01 PM | #13 |
Drives: '08 Yaris Sedan, Aero Package Join Date: Oct 2008
Location: Burlington, Ontario, Canada
Posts: 1,720
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I've driven year around with mine removed and have had no issues.
The latest was a MI grey anodized cover adapted for the Blitz S/C. It often made a annoying buzz at idle. Rubber isolating washers didn't help so now it's on the shelf.
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TRD Upgrades: 18" Wheels wrapped in 215/35/18 PZero's, Sportivo Shocks/Struts, Lowering Springs, Swaybar, Axle-Back Exhaust, Oil Cap, Rad Cap, Signage. Aftermarket Goodies: Piggies SS, K&N Drop-In, Blitz S/C, DC Header, NST Pulley) Toyota Options/Accessories: Sport Pedal Covers, Sport Shift Knob, Ipod Interface, Summer Mats, Winter Mats, Cruise Control, Auto-Dim Mirror, Echo steelies with winter boots. |
12-19-2015, 04:30 PM | #14 | |
Quote:
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12-19-2015, 06:55 PM | #15 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Huh I will consider not putting mine back after Im done servicing the plugs.
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Synthetic Oil: Its All In Your Head |
12-19-2015, 08:55 PM | #16 |
Drives: Yaris 3-door Join Date: Aug 2009
Location: Central California
Posts: 114
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It slightly reduces top end engine noises
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dust cover |
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