 engine warm up, rough running till warm |
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| simonr |
 Aug 19 2010, 04:11 PM
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Member  Group: Members Posts: 65 Joined: 11-July 10 From: Indianapolis Indiana Member No.: 11,925 Region Association: None  |
I have a 1976 stock FI 2.0 with 128,000 miles on her. ive had the car 2 months and have gone thru her pretty well because im a stckler for knowing where im at with my Porsches. I have replaced all vacuum hoses points, plugs , adjusted valves and timing is dead on. I live in Indiana so its not been cold yet. My car runs fine after she warms up but does not run well at all until then . She idles but going through the gears she surges pops and farts for about 5 to ten minutes of run time then she runs great. are the 914's usually this cold blooded. I dread to think what it will be like when it starts getting chilly out. Am I expecting too much? I just feel im missing something. Thanks for all imput
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| underthetire |
Aug 22 2010, 04:46 PM
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
well, mine used to open around 80 deg that I could remember, and I believe they open all the way at any ambient temp. I never measured the temp they start to close at. I used aero Kroil to loosen mine up, soaked it overnight and it worked like a champ. Even at 1/2 open, your idle should be a little high. I would jump the wire from it to the battery and see if it closes all the way. And a little trick to make sure it's opening, is liquid freeze. Any of those "dusters in a can" held upside down will chill anything enough to test it.
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Posts in this topic
simonr engine warm up Aug 19 2010, 04:11 PM
underthetire Is the AAR working? Aug 19 2010, 04:32 PM simonr Im not sure How do I check it? Aug 19 2010, 05:21 PM Jeffs9146 Take it off and blow through it then touch it to g... Aug 19 2010, 05:42 PM underthetire wow, thats a lot of words. Does it idle at about ... Aug 19 2010, 06:23 PM Jeffs9146 :lol4: Luckly I didn't have to write them... Aug 19 2010, 06:31 PM simonr The car idles right at 900 to 1000 upon start up .... Aug 20 2010, 04:35 AM simonr The AAR has strong vucuum pull upon cold start up ... Aug 20 2010, 06:23 AM vsg914 Where does it idle after warmup? Aug 20 2010, 06:42 AM
simonr
Where does it idle after warmup?
It idles right ... Aug 20 2010, 07:47 AM underthetire Ok, so if it has strong vacuum at start up, then i... Aug 20 2010, 08:42 AM Tom He said it has a strong vacuum upon cold start up.... Aug 20 2010, 11:43 AM underthetire
He said it has a strong vacuum upon cold start up... Aug 20 2010, 12:12 PM simonr I pulled the aar and have it soaking. it was stuc... Aug 20 2010, 11:49 AM Tom Yep, that could be it.
Tom Aug 20 2010, 01:08 PM simonr I reinstalled the AAR and noticed no change The sl... Aug 21 2010, 07:48 AM Tom Check Brad Anders 914 D-Jetronic parts and troubl... Aug 21 2010, 10:30 AM avidfanjpl Yep
Sounds like a CHT problem
Do you have the pr... Aug 21 2010, 02:58 PM simonr I replaced the CHT sensor with the stock unit . Ma... Aug 21 2010, 03:39 PM underthetire The extension piece helps with warm up, it was a a... Aug 21 2010, 05:05 PM simonr I do not have a high rpm at start up its about 100... Aug 21 2010, 07:31 PM simonr Put aar in freezer for half an hour . It opened wi... Aug 24 2010, 04:22 PM |
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