 Could this be my problem?, Anybody else old enough to remember "Heathkit"? |
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| Porsche Rescue |
 Feb 7 2009, 02:38 PM
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Saving and Enjoying Old Porsches  Group: Members Posts: 2,978 Joined: 31-December 02 From: Bend, Oregon Member No.: 64 Region Association: None  |
I posted last fall about my problem: '70 D-jet, extremely hard to start, requires much throttle goosing to keep it going. Once it is fully warmed up it runs great.
I assumed FI problem and have checked everything. All seems OK. Bleysing and others suggested weak spark. Good enough for warm engine, but inadequate for cold. (Frankly, ignition is the weakest category in my 914 skillset). I have checked all connections, grounds etc. All seem OK. Then, a light bulb! My car has a Heathkit, vintage capacitive discharge ignition (I have no clue how it works or what it does, see skillset deficiiency above). I do know it is over 30 years old. Could that be my problem? Can I just disconnect the 4-wire harness from the coil? Or do I need to do some other re-connecting.  Here is the earlier thread on my problem: http://www.914world.com/bbs2/index.php?sho...p;hl=hard+start All ideas welcome! |
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Posts in this topic
Porsche Rescue Could this be my problem? Feb 7 2009, 02:38 PM
jmill I've got a Heathkit dwell meter and AFR meter.... Feb 7 2009, 02:46 PM 70Sixter You can check the spark visually by removing plugs... Feb 7 2009, 03:16 PM GeorgeRud I used to love building the Heathkit electronics. ... Feb 7 2009, 03:23 PM Porsche Rescue I have done a thorough "Brad Anders" FI ... Feb 7 2009, 03:37 PM
Bartlett 914
I have done a thorough "Brad Anders" FI... Feb 7 2009, 03:56 PM markb If the coil is in question, replace it.
My Dad bu... Feb 7 2009, 03:42 PM Porsche Rescue I checked Anders chart and I have the original eng... Feb 7 2009, 04:00 PM r_towle I posted my thoughts in the other thread...
RIch Feb 7 2009, 04:09 PM Porsche Rescue Well damn, I disconnected the CD.......no change. ... Feb 7 2009, 06:51 PM r_towle Did you read the other thread?
Its about your FI q... Feb 7 2009, 06:57 PM Porsche Rescue Thanks Rich. I will have a look at the TPS next, t... Feb 7 2009, 07:01 PM r_towle lean idle condition.
Lean makes it run like crap w... Feb 7 2009, 07:03 PM Porsche Rescue TPS, then I will follow your vacuum check procedur... Feb 7 2009, 07:09 PM r_towle I chased this same thing on mine..
I did the intak... Feb 7 2009, 07:21 PM underthetire Hey, im looking at the same thing right now. Sitti... Feb 7 2009, 07:24 PM Gint I remember. Next thing you know you'll have m... Feb 7 2009, 10:14 PM Spoke Cold problems could be head temperature sensor. Ha... Feb 7 2009, 11:05 PM r_towle
Cold problems could be head temperature sensor. H... Feb 8 2009, 11:02 AM effutuo101
I remember. Next thing you know you'll have ... Feb 8 2009, 10:27 AM mikez LIGHTLY spraying carb cleaner or Qwik Start in sus... Feb 8 2009, 10:47 AM  |
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