Auxillary Air Valve, Does the body need a good ground? |
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Auxillary Air Valve, Does the body need a good ground? |
Allan |
Jan 30 2005, 04:51 PM
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#1
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Teenerless Weenie Group: Members Posts: 8,373 Joined: 5-July 04 From: Western Mesopotamia Member No.: 2,304 Region Association: Southern California |
I'm going to mount my aux air valve back onto the plenumn bracket and was wondering if the body of the valve acts as a ground. I painted the plenumn so I'll need to sand off some paint if it does. Thanks.
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redshift |
Jan 30 2005, 05:56 PM
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#2
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Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
Yes, the body is ground.
M |
SirAndy |
Jan 30 2005, 06:25 PM
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#3
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Resident German Group: Admin Posts: 41,636 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
(IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif) with Mr. M ... the body of the AAR is the ground, so make sure there's some metal to metal action going on there. also, none of this will work without a solid tranny-ground-strap-on ... (IMG:http://www.914world.com/bbs2/html/emoticons/cool.gif) Andy |
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redshift |
Jan 30 2005, 06:38 PM
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#4
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Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
Yes, nothing like a tranny strap on...
M |
martinef1963 |
Jan 31 2005, 11:23 AM
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#5
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The Saga Continues... Group: Members Posts: 320 Joined: 9-November 04 From: Miami, FL, USA Member No.: 3,080 Region Association: South East States |
Does somebody have a picture of the proper location for a tranny ground strap? I'm missing it on my 72 teener and think that it might fix some of my electrical problems.
there is one ground wire, but I forgot the originating location. thanks, |
ClayPerrine |
Jan 31 2005, 01:26 PM
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#6
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Life's been good to me so far..... Group: Admin Posts: 15,459 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
The transmission ground strap goes from one of the top bolts in the tail housing cover up to a 8mmx125 stud welded to the bottom of the trunk. If the stud is missing, you can put the strap to the mount bolt for the motor mount. Not the big one, but the one that holds the mount onto the body.
Hope that helps |
Dave_Darling |
Jan 31 2005, 04:17 PM
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#7
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914 Idiot Group: Members Posts: 14,985 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
I believe that the 1.8 AAR has a ground pin in the two-pin connector on the part. The 1.7 and 2.0 versions do ground through their body.
--DD |
DuckRyder |
Feb 1 2005, 07:22 PM
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#8
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Avatars Mode: OFF because of the recalcitrant few. Group: Benefactors Posts: 767 Joined: 8-January 03 From: Georgia Member No.: 110 |
Good to know
The air valve has got about a can and a half of PB blaster run through it and still isn't working right, maybe ground has been the problem all along... (IMG:http://www.914world.com/bbs2/html/emoticons/smash.gif) |
Dave_Darling |
Feb 2 2005, 12:08 PM
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#9
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914 Idiot Group: Members Posts: 14,985 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
What's the resistance from the electrical connector to the body of the AAR? (Or between the two pins of a 1.8 AAR.)
2.0 (and presumably 1.7) should be about 13 ohms. The 1.8 should be about 30 ohms. A reading of zero means the wire has shorted to the case, an infinite reading means the resistance wire (the heating element) has broken. --DD |
DuckRyder |
Feb 2 2005, 04:40 PM
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#10
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Avatars Mode: OFF because of the recalcitrant few. Group: Benefactors Posts: 767 Joined: 8-January 03 From: Georgia Member No.: 110 |
75 2.0. 2.6 ohms (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif) |
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Dave_Darling |
Feb 2 2005, 05:37 PM
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#11
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914 Idiot Group: Members Posts: 14,985 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Sounds like the input wire or the resistance wire has shorted to the case. You might wanna pry the whole thing open and check...
--DD |
DuckRyder |
Feb 2 2005, 06:27 PM
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#12
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Avatars Mode: OFF because of the recalcitrant few. Group: Benefactors Posts: 767 Joined: 8-January 03 From: Georgia Member No.: 110 |
Guess I will have to... |
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Allan |
Feb 3 2005, 10:31 AM
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#13
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Teenerless Weenie Group: Members Posts: 8,373 Joined: 5-July 04 From: Western Mesopotamia Member No.: 2,304 Region Association: Southern California |
Jeeez, that's mine. Checked it last night and from the lead to the body is infinity. (IMG:http://www.914world.com/bbs2/html/emoticons/headbang.gif) I can't figure out why my car was running so well with a bad mps and aux air valve. |
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Dave_Darling |
Feb 3 2005, 12:17 PM
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#14
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914 Idiot Group: Members Posts: 14,985 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Well, open it up (take pics and post them!!) and check. If the wire really is busted, you can substitute a 12-ohm 1-watt ceramic "bathtub" resistor--if it fits. I didn't check the fit... Or you can string together 13 ohms worth of 1-watt resistors of whatever construction if you can get them to fit. Just make sure that the metal bits don't contact the housing anywhere.
I figure that, for the most part, any resistor of reasonably-appropriate values will heat up about as quickly as the original heater coil... --DD |
DJsRepS |
Feb 4 2005, 06:58 AM
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#15
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Member Group: Members Posts: 431 Joined: 4-November 04 From: Sarasota Florida Member No.: 3,060 |
The AAR valve needs to be in the OEM location as motor heat will close it even if the wires were off. And DD my 72/1.7 FI has only one wire leaving the AAR bodie as a ground. You should bench check the thing to make sure it is doing what it should. My AAR valve gives me no problem ever. It was in the trunk now it's inside the house in a milk crate.
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DuckRyder |
Feb 7 2005, 11:38 AM
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#16
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Avatars Mode: OFF because of the recalcitrant few. Group: Benefactors Posts: 767 Joined: 8-January 03 From: Georgia Member No.: 110 |
Pulled one off my spare motor (I do not know why I thought they were different.)
It test electrically good, soaked it with PB blaster a few days, and just installed it, will see if it functions after I adjust the valves. Point of Discussion: Any reason why an Aux valve from something else could not be adapted? It just a controlled vacuum leak right? Mounting it seems to be the biggest issue. I think I have one from a Rabbit around here I might try? |
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