Big end 25T main symptoms?

Posts specific to the 2.5 litre turbo engine

Re: Big end 25T main symptoms? UPDATE

Postby Newbie GT » Sat Jan 18, 2014 12:24 pm

Mate I'm asking as some guys may have had a similar issue

Stop putting shit on my threads
Last edited by Newbie GT on Thu Jan 23, 2014 9:41 pm, edited 1 time in total.
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Re: Big end 25T main symptoms?

Postby Newbie GT » Sat Jan 18, 2014 2:20 pm

More info...

Stopped at servo. Fuel light was on low fuel for a fair bit of the drive.

Put in 20L noise seems to have home can't replicate it even letting car run for 10 mins stationary...
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Re: Big end 25T main symptoms?

Postby bigBADbenny » Sat Jan 18, 2014 3:06 pm

If you are in Melbourne I can help you diagnose it.
Either at my place in Collingwood or tomorrow at the Wrx club swap meet or whenever ;)
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Re: Big end 25T main symptoms?

Postby Newbie GT » Sat Jan 18, 2014 3:14 pm

bigBADbenny wrote:If you are in Melbourne I can help you diagnose it.
Either at my place in Collingwood or tomorrow at the Wrx club swap meet or whenever ;)


Thanks Benny will you log it ?
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Re: Big end 25T main symptoms?

Postby bigBADbenny » Sat Jan 18, 2014 4:12 pm

For sure pm me when ur ready
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Re: Big end 25T main symptoms?

Postby Newbie GT » Sat Jan 18, 2014 4:24 pm

bigBADbenny wrote:For sure pm me when ur ready


Cheers mate
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Re: Big end 25T main symptoms?

Postby seanmau5 » Sat Jan 18, 2014 8:15 pm

Newbie GT wrote:but no Engine


There's the problem!
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Re: Big end 25T main symptoms?

Postby Newbie GT » Thu Jan 23, 2014 9:47 pm

Just to recap post :

-Noise like a knocking appears when AC is on or not.
- seems to occur on HOT days if it's at idle slight rev and it goes
- not consistent at all
- when knocking can be heard from inside cabin I get out and engine is quiet and no odd noises

Was told by a Subaru engine builder that he thinks it sounds like a belt tensioner

Any opinions ? Help full suggestions to check ?
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Re: Big end 25T main symptoms?

Postby bigBADbenny » Thu Jan 23, 2014 11:12 pm

Accessory belt tensioner is a DIY job, mine was squealing on startup.
Timing belt tensioner... That's pretty important... How far off timing belt service are you?
I'd suggest at least inspecting the belt via taking off the cover/s...
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Re: Big end 25T main symptoms?

Postby Boostaddict » Fri Jan 24, 2014 7:02 am

Newbie GT wrote:Just to recap post :

-Noise like a knocking appears when AC is on or not.
- seems to occur on HOT days if it's at idle slight rev and it goes
- not consistent at all
- when knocking can be heard from inside cabin I get out and engine is quiet and no odd noises

Was told by a Subaru engine builder that he thinks it sounds like a belt tensioner

Any opinions ? Help full suggestions to check ?



If you are that worried newbie. Go take it to a mechanic and get them to look at it.

It is pointless posting up here multiple times as we ARE NOT there to hear and see the issue.

If its not getting worse or not affecting any performance / drivability then don't worry.
Not a Subaru...... Something MUCH better

NOPE..... That's shit too. Bus anyone??
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Re: Big end 25T main symptoms?

Postby Newbie GT » Fri Jan 24, 2014 8:05 am

Boostaddict wrote:
Newbie GT wrote:Just to recap post :

-Noise like a knocking appears when AC is on or not.
- seems to occur on HOT days if it's at idle slight rev and it goes
- not consistent at all
- when knocking can be heard from inside cabin I get out and engine is quiet and no odd noises

Was told by a Subaru engine builder that he thinks it sounds like a belt tensioner

Any opinions ? Help full suggestions to check ?



If you are that worried newbie. Go take it to a mechanic and get them to look at it.

It is pointless posting up here multiple times as we ARE NOT there to hear and see the issue.

If its not getting worse or not affecting any performance / drivability then don't worry.



As previous posts I did and no problem found but seeking more info

But how detailed are Subaru when they diagnose cars hmm
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Re: Big end 25T main symptoms?

Postby Robbks » Fri Jan 24, 2014 8:58 am

wind the boost up to 24 psi, and drive the nuts off it till it goes bang.

until then forget about it, and all the other funny issues you keep finding

EJ's are a consumable item
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Re: Big end 25T main symptoms?

Postby Deep Heat » Fri Jan 24, 2014 9:37 am

Robbks wrote:EJ's are a consumable item


+1

Most of them make weird noises anyway. I wouldn't worry about and deal with it when it goes bang.
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Re: Big end 25T main symptoms?

Postby <GB> » Fri Jan 24, 2014 2:55 pm

Often noise in the cabin is far worse than under the bonnet.
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Re: Big end 25T main symptoms?

Postby Newbie GT » Fri Jan 24, 2014 4:18 pm

<GB> wrote:Often noise in the cabin is far worse than under the bonnet.


What do you mean gb ? Nothing can be heard under hood

Very intermittant
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