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06-23-2013, 12:09 PM
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#76 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
Started to slightly rotate the distributor when trying to start and found a spot where it sounds like its really wanting to turn over but it just wouldn't catch. You can hear the engine trying to crank but it just won't make it the last bit to kick it over. Battery now down to 43 percent. Gotta charge it up for a little bit.
Posted via Mobile Device Last edited by UATahoe; 06-23-2013 at 12:31 PM. |
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06-23-2013, 12:31 PM
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#77 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
Could the battery being that low be my culprit?
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06-23-2013, 12:43 PM
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#78 |
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Registered User
Join Date: Apr 2013
Location: Knoxville TN
Posts: 1,170
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Re: New motor won't crank, don't know what else to do
If you didn't allow for advance then rotate dist CCW about 2 to 5 degrees (a little bit) and try again.
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06-23-2013, 12:43 PM
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#79 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
Battery has been charging for around 45 minutes and it's only reading 58%. I am thinking the battery wasn't getting sufficient voltage to the starter to give it the power it needed to fire the engine over.
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06-23-2013, 12:45 PM
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#80 |
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Registered User
Join Date: Apr 2013
Location: Knoxville TN
Posts: 1,170
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Re: New motor won't crank, don't know what else to do
I think you still have starter gear issue.
Maybe still binding. |
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06-23-2013, 12:48 PM
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#81 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
I think so too. I did watch the flex plate. It's turning freely but maybe the starter is still binding not allowing the Flexplate to turn as fast as it should be.
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06-23-2013, 12:57 PM
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#82 |
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Registered User
Join Date: Apr 2013
Location: Knoxville TN
Posts: 1,170
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Re: New motor won't crank, don't know what else to do
I'd count starter teeth and see if tooth count correct for your application.
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06-23-2013, 01:00 PM
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#83 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
The starter has nine teeth. How do I verify that's right for my application?
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06-23-2013, 01:07 PM
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#84 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
Is it possible that I might need a higher torque starter for the 383?
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06-23-2013, 01:15 PM
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#85 | |
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Registered User
Join Date: Apr 2013
Location: Knoxville TN
Posts: 1,170
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Re: New motor won't crank, don't know what else to do
Quote:
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06-23-2013, 01:42 PM
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#86 |
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Registered User
Join Date: Oct 2003
Location: houston, texas
Posts: 1,974
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Re: New motor won't crank, don't know what else to do
Starter gear should not be under flywheel while running or off like in your first picture, you need new starter.
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__________________
2008 Silverado Z71 RCSB 1991 GMC Jimmy 4x4 1976 GMC Sierra C15 SWB |
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06-23-2013, 01:45 PM
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#87 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
The starter is brand new but I agree. It's not right. I think it is still too close to the Flexplate causing the gear to fit too tight. Should I go back to the part store and try a different band starter?
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06-23-2013, 01:51 PM
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#88 |
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Registered User
Join Date: Oct 2003
Location: houston, texas
Posts: 1,974
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Re: New motor won't crank, don't know what else to do
The starter gear should be 100% away from flex unless key is in start position, that's how it works
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__________________
2008 Silverado Z71 RCSB 1991 GMC Jimmy 4x4 1976 GMC Sierra C15 SWB |
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06-23-2013, 01:55 PM
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#89 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
Sometimes it is, sometimes it isn't. I have an 1/8" of shims in place now. I think i need to add to that a little more to gt it spaced off some more
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06-23-2013, 02:05 PM
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#90 |
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Registered User
Join Date: Oct 2003
Location: houston, texas
Posts: 1,974
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Re: New motor won't crank, don't know what else to do
An 1/8" of shims is crazy, that's not normal
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__________________
2008 Silverado Z71 RCSB 1991 GMC Jimmy 4x4 1976 GMC Sierra C15 SWB |
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06-23-2013, 02:16 PM
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#91 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
Starting gear is not sticking now slides in then slides out. Pulled the number one cylinder spark plug and the number 2. Definitely not good.
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06-23-2013, 02:27 PM
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#92 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
Here's a question. The truck has a remote start system wired in. Would that interfere with it turning over? I know it winces rpm and then stops the starter but thought that was only when activating the remote start. Thought regular cranking remains unchanged.
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06-23-2013, 02:36 PM
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#93 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
Also installed a tach/fuel gauge combo. Could the tach connection into the ignition coil be my problem?
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06-23-2013, 02:38 PM
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#94 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
Where I spliced in for the tach connection.
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06-23-2013, 05:28 PM
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#95 |
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Registered User
Join Date: Mar 2013
Location: Fayetteville Arkansas
Posts: 830
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Re: New motor won't crank, don't know what else to do
So the engine is not turning over now?
__________________
Scott 87 Chevy 2WD SWB, 88 4x4 LWB http://67-72chevytrucks.com/vboard/s...d.php?t=610652 |
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06-23-2013, 06:03 PM
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#96 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
Hell yeah boys!!!!! She fired up!!!! Man it sounded beautiful to hear that thing fire off! Not out of the woods tho. I think i may have found the problem.
I got in and tried to crank and gave it a little pedal and it fired off and started up. Gave it a little pedal to keep the rpms at 1500-2000 to get it up to temp and let it idle down. Idled perfect at 1000 rpms. Cut her off and let it cool down. Tried to fire it up again and i had to give it some pedal to get it to fire off and had to keep giving it pedal to keep it running. It wouldnt idle this time. If i let off the gas pedal it would slowly drop rpms down to 500 and then choke out and cut off. I looked at the throttle body and i am getting great flow from the passenger side injector and little to no gas from the drivers side! I think it is basically starving itself of fuel. One thing i should mention. I am running it right now with open headers and no O2 sensor hooked up. I am sure that will effect it a little. So, looks like i still have some work ahead of me but i will be honest. I will take the small victory knowing that it fires up and runs! |
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06-23-2013, 06:16 PM
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#97 |
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Registered User
Join Date: Mar 2013
Location: Fayetteville Arkansas
Posts: 830
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Re: New motor won't crank, don't know what else to do
Great news!! Is this a TBI motor?
__________________
Scott 87 Chevy 2WD SWB, 88 4x4 LWB http://67-72chevytrucks.com/vboard/s...d.php?t=610652 |
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06-23-2013, 06:19 PM
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#98 |
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Registered User
Join Date: Mar 2012
Location: Huntsville, AL
Posts: 1,000
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Re: New motor won't crank, don't know what else to do
It is indeed. Using a modified throttle body and cop car injectors. fuel pressure regulated to 18 psi. also using a modified computer prom from harris performance.
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06-23-2013, 06:44 PM
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#99 |
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Registered User
Join Date: Mar 2013
Location: Fayetteville Arkansas
Posts: 830
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Re: New motor won't crank, don't know what else to do
Nice, are you going to have to run 91 octane?
__________________
Scott 87 Chevy 2WD SWB, 88 4x4 LWB http://67-72chevytrucks.com/vboard/s...d.php?t=610652 |
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06-23-2013, 06:45 PM
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#100 |
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Registered User
Join Date: Mar 2013
Location: Fayetteville Arkansas
Posts: 830
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Re: New motor won't crank, don't know what else to do
Also with the TBI, once you set the timing you will have to unplug a wire and set at 0.
__________________
Scott 87 Chevy 2WD SWB, 88 4x4 LWB http://67-72chevytrucks.com/vboard/s...d.php?t=610652 |
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