Help Help Help 48kw

[Travis Trayhern]

Are you running a timing cover?

you ran it with the timing cover off didnt you, and you didnt put washers to space the CAS (cam angle sensor) out thats why you have broken the tab on the cam which positions it in the right spot and timing, what it also dose is stuffs up the CAS because it hits in the cam gear bolts, the only way to fix is replace this is a common thing ppl thinks it kool to see ya cam gears and belt going around lol this will learn ya. and if ya tunner did it he should have knowin better and maybe he or she shouldnt be touching ya skyline.

sometimes ya can give the CAS a tap and it will come bak for a little. but with that tab on the cam missing things can get messy because if the CAS slipps a toth at full noise there goes ya engine.

Edited January 3, 2009 by Travis Trayhern

[shotter]

We didn't run it with the timing cover off. But we did notice the first time we pulled the cover off and the CAS out is that it had snapped the tabs, only 1 was still stuck in the CAS. and that it had rubbed on the cam bolts. Then we put the cover back on and the CAS back on. And we could still hear the rubbing sound with the timing cover on. And what would need to be replaced? Both the CAS and cam? And the other weird thing i noticed is the CAS has a mitsubishi symbol on the front of it. Is this normal?

[shotter]

Also we checked the timing with a timing light. If this was fine would that mean that the CAS is in the right spot and working fine?

[Adriano]

Cas will be in the right spot. There is no need to replace anything, just need to take more time when installing the cas. I call bulls@#t to the theory that the cas drive wears allowing the timing to jump around, and the pin certainly doesn't do anything once the splines are engaged. There is no way this can blow your motor. All early rb's have a mitsubishi cas.

[Tangles]

drop the exhaust off from the turbo housing and give it a run on the dyno.

but first see if the rear wheel of the turbo is still intact and not in the cat converter

if it makes the power then check the cat to see if its shagged - could be a major restriction there,

[Travis Trayhern]

well borrow a CAS because thats your problem, because when it rubs on the cam gear bolts it also puts preasure on the internals of it, as previous post said with the cam lob gone it just makes it really hard to line up but it look like its done the damage to it already, if you do put another one on make sure it is spaced out and shouldnt hit there is a rubber that goes inbetween the timing cover it also had small washers in it to space it out

[shotter]

But if the timing is fine with a timing light and we can see the timing change through the ECU wouldn't that mean that it's ok?

[Travis Trayhern]

yeh that should be ok then

[shotter]

Im wondering if it is the ECU that is causing the problems. I would love to get a powerFC but they sell so quickly. IM thinking i might check the CAT and also the compression on each cylinder...

[VB-]

yeah compression test, and take the cat out.

Tangles, its making boost, so the exhaust wheel is probly still in the right spot

[The Mafia]

I can't believe that the workshop hasn't found the problem yet?

- Pressurize your entire intake system and see if there is a leak.

- Check the cat

- Check the AFRs again

- Check there is enough fuel flow, not just pressure

- Do a compression test - You might have blown the engine

There are more options but do the basics.

Edited January 5, 2009 by The Mafia

[shotter]

Ok had a talk to the workshop my cars in and they hooked up a haltech e11 with a base map and it still had the same problem. He doesn't think it could be the cat, pistons or cams bacause if it was it would run badly at idle. So now im back to the situation of not knowing what the hell is wrong with my car...

[Travis Trayhern]

take to new workshop

[shotter]

Im thinking maybe the cam timing isn't working at thats why it is running so flat when it really should be kicking in. can anyone explane to me how it works?

[MBS206]

Ok had a talk to the workshop my cars in and they hooked up a haltech e11 with a base map and it still had the same problem. He doesn't think it could be the cat, pistons or cams bacause if it was it would run badly at idle. So now im back to the situation of not knowing what the hell is wrong with my car...

Mate, I did a ring landing, and valve, and the ONLY thing you could tell from it when it first let go, was that it had a SLIGHT miss to it at idle. That's it.

Cat blocked, she'll still run fine.

As to the cam timing, you can unplug it and it'll be fine. It only moves the cam a few degrees. Rule it out.

Drop the exhaust, and run it on the dyno, is power back? No? Leave it off...

Compression test motor, is comp down? No, move on.

Pressure test whole inlet, is there a leak? No, Move on.

Checked the cams? Haven't snapped one? Cars have seen to run but make no power with snapped cams before.

[BeEnAr]

Trailer the car to a new workshop me thinks. If you have internal damage all this stuffing around with the ECU changes is just making it worse as each time he is having to run the engine again. You said the workshop said he doesn't think it would be the cat but has he bothered to check it yet? Maybe exhaust is crushed, maybe inlet pipes are sucking closed, maybe he left the brakes/handbrake on, Maybe his Dyno is broken?

[PM-R33]

Yeah im fairly amazed that the workshop can't find the problem when obviously something is extremely wrong for it to be making a third of its stock power...

[shotter]

Yea im thinking of taking the day off on wednesday and just saying, give me your tools and a hoist and i will check this stuff out. So other than the stuff MBS206 has said. Can any one give me more stuff to check and i will just print out a list and tick each one off on wednesday. And i really hope the cam isn't snapped.

[Travis Trayhern]

dose it ide ok? seriously if it ides ok there should be anything like cam snaped or rings busted with out a miss fire or blue smoke pooring out the back lol my money is still on the CAS dude can you borrow one the try out? and whats going on when u just free rev it?

[dangerman4]

has it got a gates timing belt on it?

it will be a bluey black colour.

thats probally your rubbing noise from the front of the engine.

dead fuel pump?

check all 3 cam timing marks?

do a compression test and replace your plugs if they look shitty.