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hard start tips

Old Mar 29, 2001 | 04:21 PM
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hard start tips

anyone got a good list of things to do to help get a 3rd gen to start up on the first crank (without having to stand on the gas pedal)? i always hear the mechanics' cars start right up on the first crank no matter how old their car is. i'd like mine to start on the first crank too! it's just something that a good running car should be able to do IMO. my 84 Z28 is in great running condition for having 160k miles on it but i hate the embarrasment of having to crank the engine a couple of times for 15 seconds to get it going in the morning. any tips would be greatly appreciated!
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Old Mar 29, 2001 | 04:55 PM
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Set your timing to factory default of 6*
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Old Mar 29, 2001 | 06:30 PM
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Chuck a 13 plate battery in it.
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Old Mar 29, 2001 | 06:45 PM
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Put a msd blaster coil on it, and/or ignition
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Old Mar 29, 2001 | 10:46 PM
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I would also suggest looking to see if your injectors are leaking. If they are they tend to flood the engine.
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Old Mar 30, 2001 | 04:16 PM
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<font face="Verdana, Arial" size="2">Originally posted by ArnoldBraker:
I would also suggest looking to see if your injectors are leaking. If they are they tend to flood the engine. </font>
would that make it start hard when the motor is warm (like after during the day when I've been driving...)?

It fires up strong when cold or its been sitting for quite a while. And usually starts fine if its only been sitting a matter of minutes. But when its been sitting say... half an hour or longer, it takes a while.



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Old Mar 30, 2001 | 04:21 PM
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<font face="Verdana, Arial" size="2">Originally posted by Timmys88Z:
would that make it start hard when the motor is warm (like after during the day when I've been driving...)?

It fires up strong when cold or its been sitting for quite a while. And usually starts fine if its only been sitting a matter of minutes. But when its been sitting say... half an hour or longer, it takes a while.

</font>
i've heard that this is usually caused when you're running a little on the rich side. you start right up when you're cold because a rich condition is GOOD when starting cold, but you'll have difficulties starting with a rich mix if you're already up to operating temp.

someone please correct me if i'm wrong.
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Old Mar 30, 2001 | 04:32 PM
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Proper starting technique is a good start.

Push the gas pedal slowly to the floor about 3 times, plus one more for every 10° below 50° ambient. Then try to start it.

If that doesn't work, then the problem is probably the plugs in the bottom of the fuel bowl. They leak. They will let all of the egas in the bowl drain into the intake, then when you try to start it, one or 2 cylinders have a load of fuel, but the carb is dry; so you have to crank it for long enough to get the fuel pump to fill it back up. This same problem will make the car hard to start after a hot soak of a few minutes, because the leaking fuel will flood the engine.

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Old Mar 30, 2001 | 04:42 PM
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great info RB, thanks! i think i'll start with the carb plugs and see if there is any leakage. i've got to pull the carb to do my intake gasket this weekend anyway.

ARNOLD: i'm having a bit of difficulty finding the injectors on my 305 4bbl. hmmm...maybe they're in the trunk with the spare
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Old Mar 30, 2001 | 10:32 PM
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you shouldnt leave your injectors in the trunk, too much moisture back there. keep them in the glove box like i do.
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Old Mar 31, 2001 | 01:27 AM
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No you just not looking hard enough for them in the right place for your injectors. I KNOW for a fact your 4bbl has injectors:-)

Really though, I didn't realize you had a carb:-)~Arnold


Timmys88Z:
"would that make it start hard when the motor is warm (like after during the day when I've been driving...)?

It fires up strong when cold or its been sitting for quite a while. And usually starts fine if its only been sitting a matter of minutes. But when its been sitting say... half an hour or longer, it takes a while."

From what I have read, it certainly could. That actually sounds almost exactly like what my car does. The way to tell is to do I fuel pressure test. If it leaks off, then either your FPR is bad or your injectors are leaking. At least that is my understanding. What 84 Zcam said also sounds like a good possibility. ~Arnold

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Old Mar 31, 2001 | 04:40 AM
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Ok, so lets say my injectors are leaking....

Can that be fixed? Or do I need new injectors (expensive!) ?

Thanks.
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Old Mar 31, 2001 | 03:53 PM
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Old Mar 31, 2001 | 08:09 PM
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Generally they leak because they got dirty (as in dirt, not a sick mind) Surf over (don't drive) to www.cruzinperformance.com They can clean and flow match your injectors for about $80


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Old Apr 1, 2001 | 12:56 AM
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Wow! Gotta love that transition into fuel injection....

A carb? Ohh yeah! O got a carb. it's C.O.# 3330-334223.....

(The everlasting assumption 3rd gens are fi)



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