 Excessive Cranking on start-up, Assistance request |
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| Van B |
  Mar 20 2022, 04:07 PM
Post
#121
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Senior Member  Group: Members Posts: 1,612 Joined: 20-October 21 From: Maryland Member No.: 26,011 Region Association: None 
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Hello scholars and masochists.
I’m requesting help on solving the issue of excessive cranking on start-up. Not once since I bought the car has it ever fired right up like others described for their cars. I had hoped that this issue was related to the other issues I’ve solved with the help of my friends here, but no luck. The behavior remains unchanged. To start this off, I rigged a little hidden fuel pressure gauge to the car so that you all can see for yourself. For the context of this attempt, the engine is cold at around 60F, I did not touch the throttle and the ignition was in the on position prior to cranking. https://youtu.be/DTTQ1zQJkJo https://www.youtube.com/watch?v=DTTQ1zQJkJo Edit: moving on to a new phase at post #152 http://www.914world.com/bbs2/index.php?s=&...t&p=2995793 Please advise and thanks in advance. Van |
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Posts in this topic
Van B Excessive Cranking on start-up Mar 20 2022, 04:07 PM
914Mels First, I'd energize the fuel pump a couple tim... Mar 20 2022, 04:29 PM
wonkipop
First, I'd energize the fuel pump a couple ti... Mar 20 2022, 04:37 PM
914Mels
First, I'd energize the fuel pump a couple t... Mar 20 2022, 05:13 PM Van B
Forgot about the l jet fuel pump circuit going th... Mar 20 2022, 05:32 PM wonkipop
Forgot about the l jet fuel pump circuit going t... Mar 20 2022, 05:40 PM 914Mels
Forgot about the l jet fuel pump circuit going t... Mar 20 2022, 05:46 PM wonkipop
[quote name='Van B' post='2989581' date='Mar 20 2... Mar 20 2022, 05:49 PM wonkipop
[quote name='wonkipop' post='2989567' date='Mar 2... Mar 20 2022, 05:35 PM Van B
First, I'd energize the fuel pump a couple ti... Mar 20 2022, 04:51 PM Superhawk996
Ignition was on. Fuel pump doesn’t run until c... Mar 21 2022, 06:33 AM Van B
Ignition was on. Fuel pump doesn’t run until ... Mar 21 2022, 07:58 AM wonkipop
Ignition was on. Fuel pump doesn’t run until ... Mar 21 2022, 03:04 PM wonkipop i'd call 7 cranks when i count.
or what i ca... Mar 20 2022, 04:37 PM Van B @wonkipop
My fuel pressure drops to zero as soon ... Mar 20 2022, 05:01 PM wonkipop
[b]@[url=http://www.914world.com/bbs2/index.php?s... Mar 20 2022, 05:13 PM Van B
[b]@[url=http://www.914world.com/bbs2/index.php?... Mar 20 2022, 05:36 PM wonkipop
[quote name='wonkipop' post='2989577' date='Mar 2... Mar 20 2022, 05:51 PM emerygt350 That sounds like my car the other day when the pum... Mar 20 2022, 05:15 PM Van B
That sounds like my car the other day when the pu... Mar 20 2022, 05:57 PM emerygt350 Hmmm. I wonder if that pressure drop is ok. You ... Mar 20 2022, 05:36 PM emerygt350 Could it be something with the regulator? I can... Mar 20 2022, 05:40 PM wonkipop
Could it be something with the regulator? I can... Mar 20 2022, 05:48 PM 914Mels Maybe someone with an l jet could comment what the... Mar 20 2022, 05:55 PM emerygt350 If you could fire it, and know that it was firing,... Mar 20 2022, 06:01 PM Van B
If you could fire it, and know that it was firing... Mar 20 2022, 06:11 PM Van B @wonkipop confirmed that it is a three port reloc... Mar 20 2022, 06:10 PM wonkipop
@[url=http://www.914world.com/bbs2/index.php?show... Mar 21 2022, 02:25 AM Van B
[quote name='Van B' post='2989600' date='Mar 20 2... Mar 21 2022, 07:45 AM troth Van,
This is very similar behavior to what I exper... Mar 21 2022, 08:00 AM Superhawk996
. . . the large initial draw on the starter woul... Mar 21 2022, 08:36 AM Van B @troth
Great tip, thanks!
Did you notice that... Mar 21 2022, 08:10 AM troth
[b]@[url=http://www.914world.com/bbs2/index.php?s... Mar 21 2022, 11:33 AM Superhawk996 Adding this relay board picture you might apprecia... Mar 21 2022, 08:43 AM Van B yeah and it's a long wire running nearly the l... Mar 21 2022, 08:44 AM Van B Looking at this, it seems whoever redid the fuel p... Mar 21 2022, 08:48 AM Shivers It sounds like weak spark to me. You have pressure... Mar 21 2022, 09:09 AM emerygt350 Yes, definitely try that timing light trick. I wo... Mar 21 2022, 09:28 AM StarBear For what it’s worth: after sitting for several d... Mar 21 2022, 09:30 AM wonkipop
For what it’s worth: after sitting for several ... Mar 21 2022, 03:13 PM StarBear
[quote name='StarBear' post='2989765' date='Mar 2... Mar 21 2022, 03:38 PM wonkipop
[quote name='StarBear' post='2989765' date='Mar ... Mar 21 2022, 04:15 PM ericoneal I had something similar awhile back and was due to... Mar 21 2022, 01:56 PM wonkipop
I had something similar awhile back and was due t... Mar 21 2022, 03:28 PM emerygt350 I was watching my pressure today and my 2.0 holds ... Mar 21 2022, 04:32 PM Van B
I was watching my pressure today and my 2.0 holds... Mar 21 2022, 06:19 PM Van B Well, I found the actual fuel pump wires... Uncove... Mar 21 2022, 06:26 PM wonkipop
Well, I found the actual fuel pump wires... Uncov... Mar 21 2022, 08:02 PM emerygt350 That makes sense. Although mine loses pressure an... Mar 21 2022, 06:27 PM Van B
That makes sense. Although mine loses pressure a... Mar 21 2022, 07:02 PM Superhawk996
Can anyone tell me why on earth someone would cut... Mar 21 2022, 07:57 PM StarBear
Can anyone tell me why on earth someone would cu... Mar 21 2022, 08:01 PM wonkipop
That makes sense. Although mine loses pressure ... Mar 21 2022, 08:09 PM wonkipop oh yeah,
get a new fuel pump.
though you can simp... Mar 21 2022, 08:06 PM Van B
oh yeah,
get a new fuel pump.
though you can sim... Mar 21 2022, 08:19 PM wonkipop summary version of why 3 port pump might be losing... Mar 21 2022, 08:50 PM wonkipop [b]@[url=http://www.914world.com/bbs2/index.php?s... Mar 21 2022, 10:06 PM Van B That all makes sense and I think will be helpful i... Mar 22 2022, 12:15 AM wonkipop i forgot to account for my full flow high pressure... Mar 22 2022, 01:23 AM brant I didn't read the whole thread.
but I experien... Mar 22 2022, 09:23 AM Van B
I didn't read the whole thread.
but I experie... Mar 22 2022, 12:15 PM wonkipop
I didn't read the whole thread.
but I experi... Mar 22 2022, 02:10 PM wonkipop
I didn't read the whole thread.
but I experie... Mar 22 2022, 02:23 PM brant
[quote name='brant' post='2990030' date='Mar 22 2... Mar 22 2022, 04:33 PM wonkipop
[quote name='brant' post='2990030' date='Mar 22 ... Mar 23 2022, 10:07 PM JamesM Maybe I missed it but have you checked to see if y... Mar 22 2022, 09:52 AM Van B James,
Injectors are fresh, flow matched, and test... Mar 22 2022, 12:13 PM emerygt350 I'm feeling good about the spark robbing. Wil... Mar 22 2022, 01:54 PM Van B
I'm feeling good about the spark robbing. Wi... Mar 22 2022, 03:32 PM wonkipop found the photo.
its a tit thing.
if thats perish... Mar 23 2022, 10:27 PM Van B Well folks, things have definitely taken a turn he... Mar 25 2022, 07:56 PM wonkipop
Well folks, things have definitely taken a turn h... Mar 27 2022, 03:08 AM emerygt350 Oh,man, that sucks. Mar 26 2022, 05:54 AM StarBear :popcorn: paying close attention to your adventur... Mar 26 2022, 06:59 AM Van B
:popcorn: paying close attention to your adventu... Mar 26 2022, 01:04 PM emerygt350 What failed on it? I am not at all familiar with ... Mar 26 2022, 02:21 PM Superhawk996 duplicate Mar 26 2022, 02:30 PM Superhawk996
What failed on it? I am not at all familiar with... Mar 26 2022, 02:32 PM Van B
What failed on it? I am not at all familiar with... Mar 26 2022, 03:04 PM emerygt350 So seals on the rod. The seals on top for the rese... Mar 26 2022, 05:36 PM Van B I’ve been eyeballing the motive pressure bleeder... Mar 26 2022, 06:06 PM billh1963
I’ve been eyeballing the motive pressure bleede... Mar 27 2022, 12:52 PM StarBear Plan to confirm dwell and do that decel valve test... Mar 27 2022, 07:22 AM emerygt350
Plan to confirm dwell and do that decel valve tes... Mar 27 2022, 10:57 AM StarBear
Plan to confirm dwell and do that decel valve te... Mar 27 2022, 01:03 PM StarBear
Plan to confirm dwell and do that decel valve tes... Mar 27 2022, 01:04 PM Van B Evening everyone!
Master cylinder unplanned p... Mar 27 2022, 07:31 PM Van B And finally, I’m back on the original task. Got ... Mar 27 2022, 07:37 PM wonkipop
And finally, I’m back on the original task. Got... Mar 28 2022, 04:14 PM Van B
And finally, I’m back on the original task. Go... Mar 28 2022, 04:32 PM Van B Business end and harness plug: Mar 27 2022, 07:38 PM emerygt350
Business end and harness plug:
very nice. Mar 28 2022, 08:49 AM wonkipop
Business end and harness plug:
i'm looking ... Mar 28 2022, 04:07 PM Van B
Business end and harness plug:
i'm looking... Mar 28 2022, 04:29 PM wonkipop
[quote name='wonkipop' post='2991379' date='Mar 2... Mar 28 2022, 04:49 PM Van B
[quote name='wonkipop' post='2991379' date='Mar ... Mar 28 2022, 05:08 PM wonkipop i've got a glovebox full of fuses.
its not goo... Mar 28 2022, 05:16 PM Van B Well you know where else you can keep two extra lo... Mar 28 2022, 05:24 PM wonkipop some OT subject matter for light relief.
and for ... Mar 28 2022, 05:36 PM wonkipop back on topic.
[b]@[url=http://www.914world.com/... Mar 28 2022, 06:24 PM  |
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