 Rich running D-Jet |
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| biggy72 |
 Jul 24 2011, 10:59 PM
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Member  Group: Members Posts: 209 Joined: 14-January 06 From: Olympia, WA Member No.: 5,418 Region Association: Pacific Northwest  |
So I just got my 72 1.7 liter D-Jet back on the road. It's been running rich since I got it going again, and the other day it was rich enough to foul out two plugs. I haven't changed my fuel pressure yet, but it's set at 31 psi. I think it's supposed to be down around 28 or 29, but is that enough of a difference to cause that much change in how rich the engine is running?
I'm going to go through piece by piece tomorrow checking for vacuum leaks. I unplugged the cold start valve and it didn't make a difference, but I haven't pulled it out yet to see if it's leaking at all. I'm going to go right down the list: http://members.rennlist.com/pbanders/DJetParts.htm But I wasn't sure if the fuel pressure issue could be enough to cause the entire problem. |
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Posts in this topic
biggy72 Rich running D-Jet Jul 24 2011, 10:59 PM
larss No, that small difference in pressure is not likel... Jul 24 2011, 11:10 PM biggy72 Already did. I have two and both hold a vacuum. Jul 24 2011, 11:11 PM sean_v8_914 dirty cht connection?
or
vacuum leak so severe t... Jul 25 2011, 07:19 AM vsg914 Cht, or mps is the usual culprits for rich run. Th... Jul 25 2011, 07:52 AM reharvey :agree: Jul 25 2011, 07:54 AM biggy72 I haven't had a chance to go down my list yet,... Jul 25 2011, 04:24 PM vsg914 If it has fuel injection, it doesnt have a big cam... Jul 25 2011, 04:41 PM biggy72 I bought the long block from someone in Spokane, t... Jul 25 2011, 05:00 PM
brenz
I bought the long block from someone in Spokane, ... Jul 26 2011, 11:03 AM biggy72 My dad came over last night so I didn't have m... Jul 26 2011, 11:25 AM vsg914 Ok, I understand why you dont know whats inside, b... Jul 25 2011, 05:18 PM luskesq Don't know about a '72 but my '70 cold... Jul 25 2011, 05:58 PM 914_teener
Don't know about a '72 but my '70 col... Jul 26 2011, 09:01 AM luskesq
Don't know about a '72 but my '70 co... Jul 26 2011, 10:43 AM biggy72 I just checked and my cold start valve is indeed b... Jul 26 2011, 06:18 PM biggy72 I pulled the cold start valve out and put it in a ... Jul 26 2011, 10:55 PM TAP You need to put some heat to the CHT and see if th... Jul 27 2011, 07:21 AM biggy72
You need to put some heat to the CHT and see if t... Jul 27 2011, 09:15 AM brenz
You need to put some heat to the CHT and see if ... Jul 27 2011, 10:24 AM TAP Yes,
Just run it for a few minutes and then che... Jul 27 2011, 09:26 AM biggy72 My CHT resistance is going down as it gets warmer.... Jul 28 2011, 10:23 PM biggy72 Well it looks like my brand new distributor cap ha... Jul 28 2011, 11:08 PM vsg914 Buy a bosch cap and rotor.
remove trigger points... Jul 29 2011, 04:14 AM biggy72 I've got a petronix setup, but it was definite... Jul 29 2011, 07:15 AM Bartlett 914
I've got a petronix setup, but it was definit... Jul 29 2011, 03:18 PM jcd914
I've got a petronix setup, but it was defini... Jul 29 2011, 11:01 PM Prospectfarms
[quote name='Bartlett 914' post='1516752' date='J... Jul 30 2011, 05:40 AM jcd914
OT ? : jcd914, I assume you pulled the distributo... Jul 30 2011, 12:00 PM Prospectfarms
OT ? : jcd914, I assume you pulled the distribut... Aug 2 2011, 08:50 AM biggy72 Oh ok, thought you were talking about the points. ... Jul 29 2011, 03:26 PM Dave_Darling Bosch distributor grease on the rubbing blocks, wh... Jul 29 2011, 04:54 PM biggy72 I figured it out finally. Replaced the cap and rot... Aug 1 2011, 11:51 PM biggy72 Has anyone tried getting one of these remanufactur... Aug 2 2011, 12:16 AM  |
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