 How do you adjust idle on 1975 1.8L l-jetronic |
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| steveneashcraft |
 May 16 2009, 05:21 PM
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Newbie  Group: Members Posts: 6 Joined: 30-April 09 From: Arizona Member No.: 10,317 Region Association: None  |
Assuming that everything is right. Where is the idle adjustment on a 1975 Porsche 914 with a 1.8L engine with l-jetronic. Car is absolutely stock.
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| Cap'n Krusty |
May 17 2009, 09:34 AM
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
The "hold the idle steady" comment scares me. Here we go, brief version. To set the timing, remove AND PLUG the 2 vacuum lines at the distributor. The idle speed should rise substantially. Don't have any? Stop right here and get the right distributor. Turn the air bleed screw in until the idle is at 800 RPM. Remove the cover of the timing mark observation hole and shine the timing light in there. Look for the mark, which is red. If you don't see it aligned with the "V", make it do so. If the car runs at all well, it's gonna be close enough that only a minor adjustment should be necessary. Tighten the 10mm locking nut on the distributor clamp, and recheck the timing again. Readjust as necessary (clamping it down frequently moves the distributor slightly). Unplug and reattach the hoses, and turn the air bleed screw OUT (CCW) until the idle speed is again at 800 (or 850) RPM. You're done. If you used ANY other method to adjust the timing on your L-jet equipped engine, you did it wrong.
Have a nice day .............. The Cap'n |
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Posts in this topic
steveneashcraft How do you adjust idle on 1975 1.8L l-jetronic May 16 2009, 05:21 PM
Cap'n Krusty
Assuming that everything is right. Where is the ... May 16 2009, 06:33 PM
steveneashcraft
Assuming that everything is right. Where is the... May 17 2009, 07:28 AM Cevan That rod is the top of the butterfly valve. I jus... May 17 2009, 07:37 AM Bleyseng its a air bypass screw nothing to it really May 17 2009, 07:33 AM steveneashcraft Thanks for the quick reply. I'm still confus... May 17 2009, 08:39 AM steveneashcraft
The "hold the idle steady" comment scar... May 17 2009, 12:48 PM Dave_Darling
1) What should be under the air bypass screw on ... May 17 2009, 02:58 PM steveneashcraft Dave,
Thanks. That makes sense. I was told that ... May 17 2009, 04:13 PM Cap'n Krusty OK. If you can't get it right with the air bl... May 17 2009, 04:25 PM ndfrigi Hi Steve,
I'm also a newbie with 914 (1975 1.... May 18 2012, 03:23 PM vsg914 Wow, whered ya find that old thread. I hope he has... May 18 2012, 03:34 PM 76-914 So there was a time that :poke: the Cap'n wa... May 18 2012, 04:20 PM Cap'n Krusty
So there was a time that :poke: the Cap'n w... May 18 2012, 05:36 PM vsg914 :lol4: May 18 2012, 08:01 PM messix i had this problem once and it was vacuum leaks on... May 19 2012, 09:30 AM double-a I recently performed some troubleshooting on my ... Mar 26 2015, 08:31 AM Geezer914 Having the Cap'n reply to posts is worth the p... Mar 27 2015, 06:16 AM |
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