bmf5150

Need some advice guys,I have a weird problem !after my car seems to warm to say around 190 degrees if I go to turn the car off and re try to start it , it doesn't want to re start !like the starter can barely turn the motor over ??I have the fans running at that point,but even if I turn off I get the same results!I thought I was happening do to too much draw from battery when fans are running but that's not it?? Battery seems to be charged fine !if I let it cool off some it will re start!

msydow

need a little more info, but sounds like the starter is getting hot and cant turn the engine over. how are the headers or exhaust pipes run, check to make sure the starter wires are not too close to the exhaust. heat causes increased resistance.

bmf5150

I'm going to re check connections!would header wrap help???here is a pic!

bmf5150

ls1nova71

iTrader: (4)

Is the negative battery cable grounded to the block? If not, it should be even if the battery is in the trunk, ground it to the block.

bczee

iTrader: (12)

Have you check the condition of your battery ? what is the Voltage ?

and as stated. .check to makre sure you got a good ground from the battery to the block. As well as to make sure your Battery connections are clean and secure

Steve68

iTrader: (23)

My BBC used to heat soak the starter all the time, the one time I proved it, it heat soaked at my friends restaurant, I filled a 5 gallon bucket with ice and water, dumped it right on the starter, hit the key and it fired right off!!

Not the best way, but it worked!

bmf5150

I have ground to block ,I'm pretty sure it's not battery,seem to have good voltage!

Steve68

iTrader: (23)

Try a hotter battery,

ls1nova71

iTrader: (4)

Voltage is good, but what you need is amps. Just because it has 12v dosen't mean the battery is good enough to start an engine.

futureuser

iTrader: (1)

When I read the title of this thread, I have to admit, I got a little nervous. But after reading about the issue, it turns out, your weird problems are nothing like mine. Good luck!

bmf5150

Well I just double checked and my ground is the head not block so I will switch it for sure!! I have a new optima battery!the reason why I font think it's battery is because there is always enough juice when car is cool to crank over!

ModMuscle

Optima batteries suck!

Well...at least I have had zero luck with them. Once they go dead...I could never get them charged. I tried all the tricks..two batteries...fancy smanshy charger. Nothing worked. I finally bought a regular battery and it fixed my problems.

You could also have a bad starter? Buy one of the gear reduction starters if so. Best of luck!

bmf5150

I did end up killing my battery when I first had to crank my car over ,it had to be re charged!!so maybe I should look there too!

Pop N Wood

iTrader: (1)

It could be a solenoid voltage issue. Try hooking a jumper wire on the start lug on the starter solenoid. Next time it won't start, jumper that wire straight to the battery + post. See if that works. If that works, then you might need to install a remote start solenoid. Basically means there is too much resistance in the start wire circuit so you don't get enough juice to fully engage the solenoid. The remote start solenoid (i.e. Ford) is a pretty common solution for starter heat soak.

You can also try jumpering out the solenoid by wedging a screw driver across the two big starter lugs. Might be kind of tough to do with those headers. If that works then you know your battery and starter are good.

Oh, jumpers bypass things like neutral saftey switches and clutch switches, so be ready for the motor to start if you do it.

bczee

iTrader: (12)

if you even suspect your battery, take it to the local Autozone, Sears, Kragens, etc and have them do a load test on it. as noted, voltage maybe up.. but its cranking amp are down.. ?

bmf5150

Well I think I figured it out,it was ground issue!re did them all!!!I have battery going to block,block going to frame!also a strap on the head going to frame!I also put a ground going from battery in the trunk to the frame in the trunk!so far It us working!!!thanks for the advice guys!!!

bczee

iTrader: (12)

I have always been told and said.. 90% of electrical problem are bad Grounds !

What I did was ground my battery to the Frame, Block and Body (3 wires).. I also have grounds from the block to the Frame (each side at the engine mount). Also ground from the back of the head (where the harness / PCM) to the Body. Yeah. I know it is a bit of over kill.. but I am sure it is not going to be problem !

Having your battery in the Truck, you need to make sure your ground are good and clean (bare metal) and use very heavy gauge wires.

ls1nova71

iTrader: (4)

Glad you got it fixed. You can never have too many grounds!

bmf5150

Yeah grounds are for sure important on these motors!I ran 4 guage for power and ground !starting to wonder if I Should have went bigger!