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Old 07-01-2011, 01:56 AM   #1
bigbumper74
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Default engine turning over too slow. Whats the problem???

I'm trying to diagnose this problem to decide where to go next. The car was just totally rewired so I know that all connections and grounds are solid. The car turns over fairly slow IMO, even after the new wiring job. I'm looking at getting a new starter, but dont want to get one and still have this issue. We run 2 12 volt batteries and they are brand new. I hear a lot of cars turn over super fast and wondered is it the starter or the fact that they have 16 volt batteries?? Would getting a Powermaster Ultra starter cure this and spin the motor over faster, or is going to 16 volts the only way to accomplish this. I also have the MSD pulling 20 degree on the crank up, and it still spins over pretty slow.
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Old 07-01-2011, 02:04 AM   #2
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Default Re: engine turning over too slow. Whats the problem???

Sounds like the starter doesn't have enough pah.

What's the compression on this motor?
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Old 07-01-2011, 02:30 AM   #3
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Default Re: engine turning over too slow. Whats the problem???

A few more details about the motor might help....


I have a "jegs" brand mini starter that I paid less than $100 bucks for on my junk, been on it for 5 years now, it spins my 13.8-1 496 BBC fast as hell and only with one 12 volt battery.....

Sounds like your starter may be tired and drawing high amps, time to chunk it......
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Old 07-01-2011, 02:36 AM   #4
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Default Re: engine turning over too slow. Whats the problem???

Take the starter to your local starter repair guy where he can bench test it and put a tune up on it. Support your local shop's if you can.
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Old 07-01-2011, 02:36 AM   #5
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Default Re: engine turning over too slow. Whats the problem???

bad ground or bad starter
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Old 07-01-2011, 02:45 AM   #6
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Default Re: engine turning over too slow. Whats the problem???

If the the batteries are in the boot the ground to the engine mite be bad, try a jumper lead from the starter to where you're ground is & see if it makes any difference...
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Old 07-01-2011, 02:45 AM   #7
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Default Re: engine turning over too slow. Whats the problem???

Bet a buck that it's a bad ground. Is the motor really well grounded? For giggles, try connecting a jumper cable from some solid point on the motor to the frame or better yet the battery and see if it spins faster.

You also had it rewired, is the starter wire beefy enough? Is it getting hot when you spin it? If so, it's too small a wire.
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Old 07-01-2011, 03:23 AM   #8
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Default Re: engine turning over too slow. Whats the problem???

Bad ground I'm betting too. Start checking other smaller grounding wires for being burnt/melted. I melted my shift cable, one little ground wire and the parking brake cable had an arch spot on it. Weird thing was, the setup worked for a year.
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Old 07-01-2011, 03:49 AM   #9
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Default Re: engine turning over too slow. Whats the problem???

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Originally Posted by bdr82z28 View Post
Bad ground I'm betting too. Start checking other smaller grounding wires for being burnt/melted.
Damn guys can y'all not read?

" The car was just totally rewired so I know that all connections and grounds are solid."

I'll bet a "buck" it's the starter.....
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Old 07-01-2011, 03:54 AM   #10
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Default Re: engine turning over too slow. Whats the problem???

...buy a can of Start ya Bastard or push the fucker! LOL

Oh yeah...and buy a new starter.
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Old 07-01-2011, 05:39 AM   #11
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Default Re: engine turning over too slow. Whats the problem???

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Damn guys can y'all not read?

" The car was just totally rewired so I know that all connections and grounds are solid."

I'll bet a "buck" it's the starter.....
I've seen boot mounted batteries grounded straight to the boot floor ! Everything works cause the current draw is less, the starter draws alot of current.. Probably is the starter but pretty cheap fix if it somth'n as simple as a ground...
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Old 07-01-2011, 05:47 AM   #12
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Default Re: engine turning over too slow. Whats the problem???

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Originally Posted by cepx111 View Post
Damn guys can y'all not read?

" The car was just totally rewired so I know that all connections and grounds are solid."

I'll bet a "buck" it's the starter.....
Yeah I can fucking read. All my wiring was new too and that still didn't change the fact that the starter fucking stopped working properly after a year. I went and got a new starter, same fucking problem. Started looking closer and found burnt ground wires.

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Old 07-01-2011, 06:37 AM   #13
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Default Re: engine turning over too slow. Whats the problem???

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Originally Posted by cepx111 View Post
Damn guys can y'all not read?

" The car was just totally rewired so I know that all connections and grounds are solid."

I'll bet a "buck" it's the starter.....
Just because it was re wired does not mean it was done properly. I have seen many cars that had sub par grounds.
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Old 07-01-2011, 06:47 AM   #14
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Default Re: engine turning over too slow. Whats the problem???

get a volt meter and hook it to the batt one at a time and crank the motor the voltage at the batt shouldn't drop to much less than 10 volts it it does then the starter is bad or your cables may be to lite of a guage and /or too long to support the load as far as grounds you want to have a ground from batt to frame and one to body and one from frame to motor ....hope this helps if you can also load check the batts some times new ones are bad
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Old 07-01-2011, 07:15 AM   #15
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Default Re: engine turning over too slow. Whats the problem???

Did it do it before it was re-wired ?.......I'd take jumper cables directly to the starter....if it spins then , it's in the wiring. If it still drags , it's the starter.....
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