Ignition Clicks, Car wont start when hot

[djscheppy]

Car - 86

motor / part in question - 4agte (smallport)

problem - no crank.

occurs/started when (if applicable)- can start once or twice, but after engines hot will not crank

The car wouldnt start after i pulled over on the way home a week ago, engine was hot. let it cool down a bit, turn the ignition, hear the fuel pump start up, the ignition click, but no engine cranking over. had to get it towed home.

After about a week, finally found time to look at it again - cranked over on the first try. let it run for a little while, shut it off, and then wouldnt crank again.

Ive done a bit of searching, and I think it might be the starter motor solenoid sticking within the starter motor as soon as the engine gets hot?

Can anyone confirm if this is the problem?

Thanks.

[Vaughn]

Also have the same problem, if out sliding and my 20v starts cooking and i turn it off it takes a couple goes (couple of minutes later) to start back up

[Twisty92]

I'm thinking one of two things
1. bad earthing/loose connections on starter
2. starter on the way out


check voltage drop from the earthing of the starter motor to the negative point on the battery whilst on voltage settings on a multimeter, you will want this to read 0 or very close too

when the starter motor is not turning when the car is hot then you should try tapping the starter solenoid with a hammer to see if this free's it up and starts, if it does this would ,more than likely mean starter fault..

Hope this helps
Twisty

[djscheppy]

thanks for the quick replies guys.

yeah, i wish it was a couple of minutes. seems to be the next morning when it will actually crank over again.

I did the crank/negative battery post voltage drop (tapped on to battery post and shell of starter motor) and read 0.00. I also tapped on it with a adj spanner (no room to swing a sledgie around )
Ive checked the earthing terminals, both tight - but i might give them a bit of a rub back / clean up to make sure the connections good.

if its a heat issue - anyone know a way to shield it away from the heat of the extractors?

[Twisty92]

More than likely when heat comes into play its gonna make resistence for electrical items,

You could do a set up like a ve starter motor , a springy horse shoe clips over the starter motor and a heat sheild is rivited to the horse shoe. works well for them or put heat sheild under the extractors and make brackets up to bolt up to them...

if your game enough when your having this problem is activate the starter motor by itself ( bridge it out) with some decent wire/screwdriver

[lolwat]

4a starters hate heat, heat wrap that shit

[djscheppy]

any recommendations?

[Matt]

You can add a starter relay which helps in allot of cases, but ultimately

send the starter off to golberg for a rebuild...

[jakel]

Exactly as said, once hot usually gives some problems, might be worth getting it recoed or a new one and make a heat shield as well as maybe heat wrap your headers.

[timbo]

Check the positive lead to the starter and make sure the connection is tight. I had huge problems with the battery in the back and a hot starter and virtually could not turn the car off as it would take 30mins to cool down. I ended up encasing the starter with some ACL heat shield, and a piece on the block to stop its radiant heat. I've also got some ducting forcing air up towards that starter and headers, summer in QLD means very, very hot engine bay!

Find out how much to rebuild your starter, there is no point spending big money when you can get them cheap. I bought a brand new Denso reduction starter from Auto Electrics Australia for $198.