Stagea Brake Down

[17yostagea]

Hi all was driving home work tonight cruising along and my S1 25g with stock N/A RB25de started to run very sluggish s0o pull over switch her off but she will not start, got power, faul pump and starter goes got comprestion,inject pulse and spark but wont start.

Thinking maybe has jumped a tooth in the timing???

Can anyone please help

Cheers

Edited February 14, 2011 by 17yostagea

[chef_stagea]

How do u no u have inj pulse? Is ur cas in a normal position? Wat hapnd pre-slugieshness?

[Duncan]

lol, grog?

anyway, agreed...how did you determine you have fuel and spark? Do you have a big air leak in the intake piping (split or blown hose after the AFM?)

[17yostagea]

im apprentices mechanic so call my boss out at 8:30pm out with the plugs in to test for spark and pules

got it towed to work today took off the coveres and there just bit of timing belt everywhere and jumped about 6 teeth just peeled the top half off the teeth in belt il get pics tomorrow

Fingers crossed no real damage

Edited February 15, 2011 by 17yostagea

[Duncan]

right....well then you already know it is likely to be bad then.

the only rb know for sure is non interferance is rb20. if rb25det is interferance and rb25de has higher compression....it is very unlikely to be OK.

[wolverine]

Come on Duncan don't be a spoil sport, I am pretty sure JP showed you the timing belt that came off my R33 when the idler bearing seized and stripped the timing belt.

New belt fitted, it started and purred like a kitten.

I have no chance of winning Powerball now.

[RS4-S]

how old is the belt? if you recently replaced it, what brand was it? i believe RB30's are also a free spinning/ non-interference engine, wasnt 100% with 25's but now i know

[Duncan]

yeah 25det and 26dett definately are interferance. Not really surprised rb30e is non, I wonder what a hybrid rb30det is, pretty likely it will be interferance?

Andrew....damn straight you have used up all your luck! I broke a cam a few years back, that was carnage for valves and pistons

[17yostagea]

Come on Duncan don't be a spoil sport, I am pretty sure JP showed you the timing belt that came off my R33 when the idler bearing seized and stripped the timing belt.

New belt fitted, it started and purred like a kitten.

I have no chance of winning Powerball now.

could be onto something there iv got a new belt to fit tomoz what esle u do to it just the belt?? and away u went?

[17yostagea]

how old is the belt? if you recently replaced it, what brand was it? i believe RB30's are also a free spinning/ non-interference engine, wasnt 100% with 25's but now i know

not new but hasent done 100k by far

[wolverine]

could be onto something there iv got a new belt to fit tomoz what esle u do to it just the belt?? and away u went?

The mechanics expected they were going to take the head off but figured it was worth trying to fit a belt and idler bearings and then turn it over by hand to see what would happen. It turned ok, so they cranked it and it started like normal.

There is no joy in getting the bill for a new timing belt (etc) but in this case it beats the hell out of a new engine.

[17yostagea]

thanks wolverine any resons why the bearings died?

Edited February 15, 2011 by 17yostagea

[wolverine]

No idea why it failed, it was name brand and fitted by reputable workshop.

Stuff happens.

[rb30dett]

I have seen teeth stripped off the belt before and every time the belt had been subjected to engine oil leaking on it. Look for oil leaks and check bearings I would like to know what caused the belt to break.

[66yostagea]

I have seen teeth stripped off the belt before and every time the belt had been subjected to engine oil leaking on it. Look for oil leaks and check bearings I would like to know what caused the belt to break.

Should know today

[wolverine]

and....

[66yostagea]

and....

Engine is AOK. Seized idler pulley. $359 from Nissan.

[Sunkist]

$360 from nissan, is it possible to get second hand?

[66yostagea]

$360 from nissan, is it possible to get second hand?

Our local bloke got a full reco set, both pulleys and belt for $225.

Edited February 17, 2011 by 66yostagea

[Sunkist]

bargain!

Good work finding the problem!