Jump to content
SAU Community

Recommended Posts

Hey all not sure if this is in right section but i have a problem i have a r34 skyline and it has a high flow fuel pump directly wired to battery. When you first start it in morning cranks and fires stright away but when you drive it somewhere like i went to servo other day and turned it off and then tried to start it again and was very slow cranking like the battery was going flat so i changed the battery thinking it might have been old but nope its got the stock size 430cca do i need a bigger battery or is something else? Alternator? Its been doing it since i have owned it and sometimes it doesnt even start just cranks slow then clicks like battery hasnt got enough kick or is flat. Any help would be great thanks.

 

Aaron

Link to comment
https://www.sau.com.au/forums/topic/470512-battery-problem/
Share on other sites

Have you checked voltages with the car off, cranking and running?

Test those and report back

Im going to suggest it might be the starter motor if it is worse when the car is hot. And you have changed the battery. Interested to know the charging voltage (with car running)

  • Like 1
Link to comment
https://www.sau.com.au/forums/topic/470512-battery-problem/#findComment-7830564
Share on other sites

As 89 CAL said starter is likely, but I would also check the earth straps, esp. to the block.  Starter motors can go lazy if the motor has a poor earth.

 

Easiest way to check this is [is your battery in the boot?] use both jumper leads end to end and connect from your negative terminal to the motor direct then try starting again.  If it works then its an earth strap, if it doesn't then its probably the starter motor.

Link to comment
https://www.sau.com.au/forums/topic/470512-battery-problem/#findComment-7830743
Share on other sites

Have you checked voltages with the car off, cranking and running?

Test those and report back

Im going to suggest it might be the starter motor if it is worse when the car is hot. And you have changed the battery. Interested to know the charging voltage (with car running)


Pretty sure the $20 is mine. I was first in with starter motor [emoji108]
Link to comment
https://www.sau.com.au/forums/topic/470512-battery-problem/#findComment-7832667
Share on other sites

27 minutes ago, 89CAL said:

 


Pretty sure the $20 is mine. I was first in with starter motor emoji108.png

 

No way - your starter motor suggestion was before the $20 bet was placed. I'm claiming it as I called him out on his fuel pump comment:) I think I'll buy about 12 litres of E85 (unless the price has gone up again) to run through my fuel pump.

 

Maybe he'll give us both $20...

Link to comment
https://www.sau.com.au/forums/topic/470512-battery-problem/#findComment-7832674
Share on other sites

On ‎25‎/‎05‎/‎2017 at 8:48 PM, breaker1845 said:

Twenty bucks says its a weak earth to your fuel pump. Fix that problem and it'll crank everytime if your battery/starter is good.

breaker18445 he send it me guys............it is offishal, you want $20 please to open visa account in your name and send me direct to the numbers [card number, CCv, and pin] and me will collect release $20 to you of eech

Link to comment
https://www.sau.com.au/forums/topic/470512-battery-problem/#findComment-7832774
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Wife wanted basket things in the wardrobe in our temporary house. Thought about ripping our the wardrobe and fitting the entire IKEA set, but it's a temporary house and we want to move in a few years. So IKEA advertises this as a 50cm unit, however the actually basket and rails measure 46cm wide. Only issue was depth, IKEA stuff is quite deep, where as the builder special junk is super shallow at less than 40cm. Send it, chopped the rails, then offset the mounting holes, job done, happy wife, less shit scattered all over the bedroom. Did the same to the other side too. Also drove the Skyline shit box today, dropped off oil at Supercheap Auto. I didn't realise they only now take max 2x bottles per visit. I visited 2x Supercheap Autos.  
    • I've seen similar actually in my situation. You never know what tables are attempted to be used when the car thinks it's -99C or +200C. The fail state is not usually that extreme but you know what I mean - it was in my case though! This is where being able to read all the sensors is useful cause you see this stuff really quickly.
    • The above is very important. However as long as you keep timing relatively low, it's plausible to make your own knock ears and plausible to learn to tune with a modern ECU that can do wideband O2 correction like a boost controller. I mean if you only have one viable road to even drive the car on, learning to tinker to this level may be worth doing given you can't do much else with the car...?
    • I find the fact that the rear plate has to be bent inwards at the rear not so bad: but the front is just awful: It's like come on. (these are my very old, now retired/turned in plates) TBH it is a lot of money to fix a minor issue, the fact I said "I'll never really spend the money on doing this" is why people ended up buying them as a gift for a 'car guy' who can be hard to shop for.. for car guy things.
    • I just bent the ends of my premo plates. It even went through Regency like that after the engine conversion and the inspector (a great bloke!) just squinted his eyes and said "I didn't see that". Plates, and how they look, are just something that have zero importance to me.
×
×
  • Create New...