wht510 Posted June 21, 2011 Share Posted June 21, 2011 Air in the lines??? Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5875478 Share on other sites More sharing options...
Daleo Posted June 21, 2011 Share Posted June 21, 2011 I'm thinking maybe a problem with a hydraulic accumulator? There's bound to be one in the system. If it has lost its charge, the pump will cycle repeatedly to charge the system with pressure. If it keeps leaking down, the pump cycling on all the time may fault the system. Just a thought. Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5875584 Share on other sites More sharing options...
zei20l Posted June 21, 2011 Share Posted June 21, 2011 where does that live? mine is constantly clicking on and off, especially at idle Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5875714 Share on other sites More sharing options...
impul535w Posted June 21, 2011 Share Posted June 21, 2011 youre right, the transfer case is only clutches and a chain drive. the pump is where we have already mentioned. if the pump is gone, its not a cheap exercise. however it might be something easy like the attesa ECU or a relay etc. you can hear the pump start when you start the engine. if you dont, then its something related to that. have you checked the fluid level in the boot?? Well ill put it this way - if i jam my foot on the gas it hooks up and goes but then it feels like it slips back to RWD but i could be wrong as i have never driven another. I was thinking the Altessa computer or one of the relays near by but i would need to borrow someones working one to do that... any takers? The electric motors next to the pump would be my next bet but again it would be a matter of borrowing someones to try or borrowing a spare. Fluid levels are all good. Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5876362 Share on other sites More sharing options...
zei20l Posted June 21, 2011 Share Posted June 21, 2011 its a shame youre in radelaide or you could test my spare out Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5876374 Share on other sites More sharing options...
impul535w Posted June 21, 2011 Share Posted June 21, 2011 its a shame youre in radelaide or you could test my spare out If you box it up I can get it picked up and shipped back? Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5876430 Share on other sites More sharing options...
zei20l Posted June 21, 2011 Share Posted June 21, 2011 if youre prepared to give me a refundable deposit. we can take this to PM. also, dale is this the part youre talking about? http://www.ebay.com.au/itm/Nissan-Skyline-R32-GTR-Rear-Attesa-Valve-49836-01U00-/360299226352?pt=AU_Car_Parts_Accessories&hash=item53e381e4f0 Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5876440 Share on other sites More sharing options...
impul535w Posted June 21, 2011 Share Posted June 21, 2011 if youre prepared to give me a refundable deposit. we can take this to PM. also, dale is this the part youre talking about? http://www.ebay.com....=item53e381e4f0 This may sound like a silly question but would the car still engage the front wheels if the pump was the problem? Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5876480 Share on other sites More sharing options...
zei20l Posted June 21, 2011 Share Posted June 21, 2011 not properly. it wouldnt be able to engage the clutches to tranfer the torque forward as there would be no fluid pressure. maybe there isnt enough pressure in yours or maybe too much as mentioned, might be air in the system Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5876527 Share on other sites More sharing options...
impul535w Posted June 21, 2011 Share Posted June 21, 2011 not properly. it wouldnt be able to engage the clutches to tranfer the torque forward as there would be no fluid pressure. maybe there isnt enough pressure in yours or maybe too much as mentioned, might be air in the system While being complied they bled the system multiple times, if i were to give it a crack in the drive way how would i go about it? Also this would not explain why the gauge is non operational. Mike. Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5876565 Share on other sites More sharing options...
zei20l Posted June 21, 2011 Share Posted June 21, 2011 apparently there is a plug next to the consult plug that runs the attesa pump so you can bleed it from all the points. youll need a hoist and someone in the car to connect it up as for the gauge, maybe it just doesnt work? Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5876650 Share on other sites More sharing options...
impul535w Posted June 22, 2011 Share Posted June 22, 2011 apparently there is a plug next to the consult plug that runs the attesa pump so you can bleed it from all the points. youll need a hoist and someone in the car to connect it up as for the gauge, maybe it just doesnt work? If anyone has any pointers on how to bleed the altessa on an M35 please feel free to post it up here, that way I can have a crack on the weekend. I'm hoping the gauge problem is the same as the 4WD light but you are right, it may just not work. Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5877570 Share on other sites More sharing options...
Sunkist Posted June 22, 2011 Share Posted June 22, 2011 undo the hose at the back of the gear box. turn car on igntition. it all pumps out.. make sure it keeps getting topped up. screw doing it from the bleeding points and having to get computers. lol Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5877642 Share on other sites More sharing options...
impul535w Posted June 23, 2011 Share Posted June 23, 2011 I'm thinking maybe a problem with a hydraulic accumulator? There's bound to be one in the system. If it has lost its charge, the pump will cycle repeatedly to charge the system with pressure. If it keeps leaking down, the pump cycling on all the time may fault the system. Just a thought. Just to touch on the pump, can anyone tell me if the pump cycles upon start up the same as a GTR? my car has been at Morpowa this morning and as the car is a bit obscure he was unsure if the pump cycles or not as this one did not. Cheers. Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5879265 Share on other sites More sharing options...
Daleo Posted June 23, 2011 Share Posted June 23, 2011 Just to touch on the pump, can anyone tell me if the pump cycles upon start up the same as a GTR? my car has been at Morpowa this morning and as the car is a bit obscure he was unsure if the pump cycles or not as this one did not. Cheers. Yep, cycles to build pressure, then stops. That's why I was on about an accumulator; it has all the hallmarks of that kind of issue. I don't know where it would be; I've never even pulled the cover off mine. But if there is one, it will be a steel canister after the pump, normally with a check valve between the two. Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5879275 Share on other sites More sharing options...
impul535w Posted June 23, 2011 Share Posted June 23, 2011 Yep, cycles to build pressure, then stops. That's why I was on about an accumulator; it has all the hallmarks of that kind of issue. I don't know where it would be; I've never even pulled the cover off mine. But if there is one, it will be a steel canister after the pump, normally with a check valve between the two. Excuse my ignorance but if it was this 'accumulator' why would it stop the pump from cycling if it is after the pump its self? Simon @ Morpowa is on the hunt for more of an electrical fault but i will advise him of this as anything would help at this stage, just waiting for a wiring diagram before we go round 2 otherwise we will be wasting time. He found a relay at the front of the car near the air cleaner that has something to do with the Altessa that seems to not be gettin power, we are also looking into this but with out the wiring diagram its quite slow. Cheers. Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5879544 Share on other sites More sharing options...
Jetwreck Posted June 23, 2011 Share Posted June 23, 2011 Make sure that relay is grOund properly Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5879630 Share on other sites More sharing options...
impul535w Posted June 23, 2011 Share Posted June 23, 2011 Make sure that relay is grOund properly It looks to be, a major grounding point is just near the relay, there is also an earthing kit point at the same location... Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5879661 Share on other sites More sharing options...
Daleo Posted June 23, 2011 Share Posted June 23, 2011 Excuse my ignorance but if it was this 'accumulator' why would it stop the pump from cycling if it is after the pump its self? Simon @ Morpowa is on the hunt for more of an electrical fault but i will advise him of this as anything would help at this stage, just waiting for a wiring diagram before we go round 2 otherwise we will be wasting time. He found a relay at the front of the car near the air cleaner that has something to do with the Altessa that seems to not be gettin power, we are also looking into this but with out the wiring diagram its quite slow. Cheers. It would only be this if it were running constantly, or cycling on & off rapidly & then going into fault. I was under the impression the pump was actually running; if it's not , you're on the right track looking for an electrical fault. Best of luck, wasn't my intention to lead you in the wrong direction. Cheers, Dale Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5880024 Share on other sites More sharing options...
impul535w Posted June 23, 2011 Share Posted June 23, 2011 It would only be this if it were running constantly, or cycling on & off rapidly & then going into fault. I was under the impression the pump was actually running; if it's not , you're on the right track looking for an electrical fault. Best of luck, wasn't my intention to lead you in the wrong direction. Cheers, Dale That's cool Dale, the more things it isn't the closer we get to what it is, but it is looking very electrical ATM, just need some parts to be able to swap and check. Cheers, Mike. Link to comment https://www.sau.com.au/forums/topic/185569-m35-info/page/53/#findComment-5880053 Share on other sites More sharing options...
Recommended Posts
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 accountSign in
Already have an account? Sign in here.
Sign In Now