 Starving Under Load? |
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| kenshapiro2002 |
 Jul 24 2009, 06:39 PM
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Senior Member  Group: Members Posts: 1,486 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region  |
Just brought the green machine back from CT this afternoon. After filling her up, she started to starve under load (trying to accelerate above 3,500 RPM...getting up a hill, etc.) so badly at one point I had to pull off the highway...she was dying. After sitting for 10-15 minutes, she fired up and was alright for another half hour. Then it all repeated. After the second rest she made it all the way back to Baltimore and ran beautifully for 90% of the time. I could sense a little starvation once in awhile.
I'm a shade tree mechanic at best, but my guess is that even though the seller (A Porsche tech) said the fuel tank was amazingly clean and needed nothing after being stored for 20 years, the fuel filter was getting clogged, and perhaps sitting for a while let things "settle". The seller suspects points. Any opinions? Thanks in advance, Ken |
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| kenshapiro2002 |
Aug 14 2009, 05:11 PM
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#2
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Senior Member Group: Members Posts: 1,486 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
Just drove it like I stole it and it ran better, at least for awhile. At about 4,500 RPM it often acts like I've hit a governor..it just goes flat. It wanted to "starve" especially in lower gears , until I nailed it and it seemed to get "beyond" that. All in all it ran much better. The can of Techron I threw in a few days ago might have helped too. I;m convinced that all other parameters are pretty good and that it's carb filth, or just bad adjustment / balance. The rebuild kits and synchro tool arrived today.
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Posts in this topic
kenshapiro2002 Starving Under Load? Jul 24 2009, 06:39 PM
ArtechnikA
The seller suspects points. Any opinions?
Ignit... Jul 24 2009, 07:38 PM orange914 from what you said, sounds like your staring for f... Jul 24 2009, 07:45 PM McMark Take a flashlight and have a look into the gas tan... Jul 24 2009, 07:48 PM
r_towle
Take a flashlight and have a look into the gas ta... Jul 24 2009, 08:34 PM kenshapiro2002 1970, big bore kit to 2.0, twin webers.
Ken
Tak... Jul 24 2009, 10:26 PM
kenshapiro2002 Good point, but being a "shade tree mechanic... Jul 25 2009, 07:41 AM ArtechnikA
Good point, but being a "shade tree mechanic... Jul 25 2009, 09:22 AM Rand
I guess the beer is taking affect, because I... Jul 24 2009, 10:51 PM McMark Vapor lock is a good possibility. While your doin... Jul 24 2009, 11:43 PM r_towle Carbs dont do well with old fuel in them.
At the m... Jul 24 2009, 11:56 PM Vacca Rabite The valve lash for a 1.7 was .006 intake and .006 ... Jul 25 2009, 11:11 AM orange914 pertronix electronic ign. conversion is a very goo... Jul 25 2009, 01:54 PM kenshapiro2002 Thanks folks!
Ken Jul 25 2009, 02:03 PM Rand Ken, reading your original post, it looks like you... Jul 25 2009, 02:05 PM kenshapiro2002 Yeah...after sitting for 20 years, the Porsche tec... Jul 25 2009, 07:46 PM charliew There is a chance the techron will thin and break ... Jul 25 2009, 05:49 PM Eddie914 "After filling up" .... Bad gas? It wi... Jul 25 2009, 06:26 PM kenshapiro2002 Eddie,
Here I am , three months later, to tell yo... Oct 22 2009, 05:46 PM crash914 hmmm carbs, I was going to go with trigger points ... Jul 25 2009, 07:50 PM kenshapiro2002 Never heard of "trigger points". Are we ... Jul 26 2009, 09:32 AM Rand
Never heard of "trigger points". Are we... Jul 26 2009, 10:53 AM kenshapiro2002 Well...she's doing it all the time now. The fu... Aug 10 2009, 03:16 PM kenshapiro2002 How difficult is this? Do I need a weber book to f... Aug 10 2009, 03:18 PM crash914 trigger points are used in fuel injection engines ... Jul 26 2009, 10:57 AM Kirmizi http://www.carburetorclinic.com/weber_tech.htm
Try... Aug 10 2009, 03:26 PM nycchef
http://www.carburetorclinic.com/weber_tech.htm
Tr... Aug 11 2009, 08:01 AM jmill After sitting for so long you need to go through t... Aug 11 2009, 02:36 PM kenshapiro2002 Thanks all.
Ken
After sitting for so long you ne... Aug 11 2009, 05:18 PM r_towle pull them off.
Box them up.
Send them to Art.
htt... Aug 11 2009, 06:26 PM r_towle If you get a gallon can of carb cleaner so you can... Aug 14 2009, 06:56 PM jmill 1 -Does it scream away in the first couple of gear... Aug 14 2009, 08:27 PM kenshapiro2002 1...No. In fact it does worse in first than any ot... Aug 14 2009, 08:42 PM seebobgo Let the spending begin. You got to find a good sho... Aug 15 2009, 06:13 PM kenshapiro2002 Shop my ass...anything a "shop" can do I... Aug 15 2009, 07:05 PM kenshapiro2002 Alright...so I've had the rebuild kits for a w... Aug 18 2009, 10:26 PM r_towle
Alright...so I've had the rebuild kits for a ... Aug 18 2009, 10:51 PM jmill To do it right, yes. There isn't much to them... Aug 18 2009, 10:52 PM kenshapiro2002 So...just went out to drive her hard again. I gues... Aug 19 2009, 05:56 PM jmill Yes it's that simple if the tank is empty. Do... Aug 19 2009, 07:21 PM |
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