 Do I have a Mechanical or vacuum advance distributor? |
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| LukeD |
 Jun 16 2015, 02:55 PM
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#1
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Member  Group: Members Posts: 254 Joined: 14-November 04 From: Atascadero, CA Member No.: 3,117 Region Association: None  |
Looking to buy a Petronix for my 73' 1.7, comes in mechanical and vacuum advance models. I assume I have a vacuum advanced distributor based on the silver UFO looking disk attached to the side of it with a small 5mm hose plugged into it
Just looking for a confirmation please Thank you |
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Replies(1 - 13)
| luskesq |
Jun 16 2015, 03:10 PM
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#2
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Member Group: Members Posts: 276 Joined: 24-October 10 From: Fresno, CA Member No.: 12,303 Region Association: Central California |
Based on your description and assuming it is stock, yes, vac. advanced
Keith |
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| LukeD |
Jun 16 2015, 03:55 PM
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#3
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Member Group: Members Posts: 254 Joined: 14-November 04 From: Atascadero, CA Member No.: 3,117 Region Association: None |
QUOTE(luskesq @ Jun 16 2015, 02:10 PM)  Based on your description and assuming it is stock, yes, vac. advanced Keith Thanks Keith! (IMG:style_emoticons/default/biggrin.gif) |
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| Bob L. |
Jun 16 2015, 04:39 PM
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#4
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Senior Member Group: Members Posts: 848 Joined: 7-August 11 From: Austin TX Member No.: 13,411 Region Association: Southwest Region |
You may have both. Pull the cap and rotor and look for advance arms. You can feel for swing out motion.
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| LukeD |
Jun 16 2015, 06:56 PM
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#5
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Member Group: Members Posts: 254 Joined: 14-November 04 From: Atascadero, CA Member No.: 3,117 Region Association: None |
QUOTE(Bob L. @ Jun 16 2015, 03:39 PM) You may have both. Pull the cap and rotor and look for advance arms. You can feel for swing out motion. So if I do indeed have both then which Petronix model should I get? |
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| jos.hall |
Jun 16 2015, 07:01 PM
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#6
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Newbie Group: Members Posts: 35 Joined: 5-June 15 From: Menifee CA Member No.: 18,804 Region Association: None |
if you have both, you want the Vacuum advance.
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| r_towle |
Jun 16 2015, 09:28 PM
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#7
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Custom Member Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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It's vacuum advance.
Not going to toss out more bad info. Get the vacuum advance set, and either buy a spare right now, or save your points and condenser in the glove box for the day it dies. |
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| somd914 |
Jun 17 2015, 03:48 AM
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#8
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Member Group: Members Posts: 1,171 Joined: 21-February 11 From: Southern Maryland Member No.: 12,741 Region Association: MidAtlantic Region |
Years of no issues with Pertronix - can't say the same about points.
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| jos.hall |
Jun 17 2015, 08:05 AM
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#9
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Newbie Group: Members Posts: 35 Joined: 5-June 15 From: Menifee CA Member No.: 18,804 Region Association: None |
Towle is spot on. If it's a dual advance its considered vacuum. Save the points and condenser as he said. I've had the petronix crap out on my 009 and it saved me to have my old set to swap out.
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| r_towle |
Jun 17 2015, 09:10 AM
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#10
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Custom Member Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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QUOTE(jos.hall @ Jun 17 2015, 10:05 AM) Towle is spot on. If it's a dual advance its considered vacuum. Save the points and condenser as he said. I've had the petronix crap out on my 009 and it saved me to have my old set to swap out. just cheap insurance, toss them in the glove box with a screw driver and feeler gauge. Its a side of the road repair... rich |
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| Dave_Darling |
Jun 17 2015, 12:16 PM
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#11
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914 Idiot Group: Members Posts: 15,161 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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It's also a way to ensure that the Pertronix does not fail--if you're prepared for it to fail, then it won't! (IMG:style_emoticons/default/wink.gif)
Constructive application of Murphy's Law! --DD |
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| Geezer914 |
Jun 18 2015, 08:57 AM
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#12
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Geezer914 Group: Members Posts: 1,922 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States
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Spend a few more bucks for the Ignitor II and the matching coil, so you don't fry it if you leave the ignition on.
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| DBCooper |
Jun 18 2015, 09:04 AM
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#13
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14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
QUOTE(Dave_Darling @ Jun 17 2015, 11:16 AM) It's also a way to ensure that the Pertronix does not fail--if you're prepared for it to fail, then it won't! (IMG:style_emoticons/default/wink.gif) Constructive application of Murphy's Law! --DD How true, no? Sometimes we really need a little 'thumbs up' thingy for extra special posts. |
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| Bob L. |
Jun 18 2015, 09:44 AM
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#14
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Senior Member Group: Members Posts: 848 Joined: 7-August 11 From: Austin TX Member No.: 13,411 Region Association: Southwest Region |
QUOTE(DBCooper @ Jun 18 2015, 10:04 AM) QUOTE(Dave_Darling @ Jun 17 2015, 11:16 AM) It's also a way to ensure that the Pertronix does not fail--if you're prepared for it to fail, then it won't! (IMG:style_emoticons/default/wink.gif) Constructive application of Murphy's Law! --DD How true, no? Sometimes we really need a little 'thumbs up' thingy for extra special posts. like this? (IMG:style_emoticons/default/thumb3d.gif) |
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