 Now we have Startie- but the idle is way off, Anybody have a flow chart for D-Jet like PBAnders Fuel Pump flow chart |
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| Jona Gold |
 Apr 10 2010, 04:15 PM
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#21
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The Righteous are as Bold as a Lion  Group: Members Posts: 45 Joined: 20-March 06 From: Central Minnesota Member No.: 5,745 Region Association: Northstar Region  |
This is the second time I've been up against something like this. I failed the first time- ended up basically giving the car away (I was moving, didn't have the time I needed to figure it out).
I'm not giving up this time though. I'm just afraid of what I'm going to run into. When you find loads of vacuum leaks and the car is running great- you never know how it'll run when you start "fixing" it. You know? |
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| Jona Gold |
Apr 10 2010, 04:46 PM
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#22
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The Righteous are as Bold as a Lion Group: Members Posts: 45 Joined: 20-March 06 From: Central Minnesota Member No.: 5,745 Region Association: Northstar Region |
Can anybody point me to a good vacuum diagram for a '70 D-jet system?
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| BiG bOgGs |
Apr 10 2010, 04:54 PM
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#23
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The Bogus One Group: Members Posts: 452 Joined: 25-September 04 From: Ft. Myers, FL 33967 Member No.: 2,829 Region Association: South East States |
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| gasman |
Apr 10 2010, 05:19 PM
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#24
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Member Group: Members Posts: 107 Joined: 21-January 08 From: Mooresville, nc Member No.: 8,602 Region Association: South East States |
Don't forget the AAR....this is a controled vacuum leak when cold. There is a 12v feed from the rear relay board. this helps heating it up and it gradually closes when hot. With the engine hot, Take off the vacuum line that connects the AAR and the air cleaner. put your thumb over it......if the idel drops, it may be defective. Also since you had the engine out, make sure you have the throttle linkage on right.....it might be holding the throttle body open.....
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| Jona Gold |
Apr 10 2010, 05:51 PM
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#25
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The Righteous are as Bold as a Lion Group: Members Posts: 45 Joined: 20-March 06 From: Central Minnesota Member No.: 5,745 Region Association: Northstar Region |
The AAR....
How the hell did the PO get this car running so smooth without an AAR? There's no Decel valve either. Just the MPS, Dizzy and original oil bath with intake boot.... Throttle linkage is good. |
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| Jona Gold |
Apr 10 2010, 06:17 PM
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#26
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The Righteous are as Bold as a Lion Group: Members Posts: 45 Joined: 20-March 06 From: Central Minnesota Member No.: 5,745 Region Association: Northstar Region |
I just ran it with every vacuum line on....idle is 33-3400rpm Idle screw makes no difference. (minus the missing AAR and decel valve of course - those lines I plugged).
I unplugged the ports that go to the AAR- no change. I remove every flippin' vacuum line on the engine starting with the MPS one line at a time...no change. WTF? How did this thing run great last fall with bad grounds and cracked vacuum lines? As far as FI & vacuum goes, I've changed nothing. I did fix a lot of broken wires and replace the relay board. So doing those "repairs" have now rendered me disabled..... |
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| pbanders |
Apr 10 2010, 06:20 PM
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#27
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Senior Member Group: Members Posts: 990 Joined: 11-June 03 From: Scottsdale, AZ Member No.: 805 Region Association: Southwest Region |
Sounds like a vac leak. Lots of places to check. Start at the throttle plate and work downward until you get to the valves. Some non-obvious ones:
* Cracked plenum/intake box * PCV / crankcase breather * Intake runners (the rubber hoses between the air box and the intake pipes) |
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| 1988Hawk |
Apr 10 2010, 06:22 PM
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#28
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Newbie Group: Members Posts: 41 Joined: 17-April 08 From: Chicago Member No.: 8,929 Region Association: None |
I would also suggest reinstalling your injectors with new seals. Given your rpm level, you have a major leak, might be the injectors. Jim |
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| Jona Gold |
Apr 11 2010, 07:33 PM
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#29
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The Righteous are as Bold as a Lion Group: Members Posts: 45 Joined: 20-March 06 From: Central Minnesota Member No.: 5,745 Region Association: Northstar Region |
Where's the best place to get new injector seals- muy rapido....
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| Jona Gold |
Apr 11 2010, 07:34 PM
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#30
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The Righteous are as Bold as a Lion Group: Members Posts: 45 Joined: 20-March 06 From: Central Minnesota Member No.: 5,745 Region Association: Northstar Region |
PBAnders! (IMG:style_emoticons/default/pray.gif)
Thanks a ton- your Fuel Pump flow chart saved me a lot of headaches---- You are the MAN! |
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