169 replies to this topic

[bigBADbenny]

Crocker, Aus4wd, Revzone etc for the diff install
Awesome build, pm'd for more info

[FOZ_XTC]

thx Benny

[FOZ_XTC]

big flaps be gone!

 

 

 

 

 

[Niko]

Sweet, but I sort of like seeing the entire street behind me haha.

 

How easy will the indicators be to wire up? or leaving them unwired?

[FOZ_XTC]

Sweet, but I sort of like seeing the entire street behind me haha.

 

How easy will the indicators be to wire up? or leaving them unwired?

 

Vision is actually really good, despite the size difference - and these eliminate the blind spot that has seen me hit at least three 'traffic islands' when making right hand turns at intersections...

 

Given that my foz is MY10 and the MY11+ has indicators in the mirror, rather than in the guard like mine, some wiring will be needed to make the indicators function... should not be hard though, just jump them off the guard wiring... 

[FOZ_XTC]

Good head(s)

 

Visited my baby. Not very good photos sorry... 

 

Had to walk through sandown raceway to get to the workshop from the train...

 

 

Cosworth cams all fitted, shimmed and clearances set.

 

 

 

 

 

Video

 

 

Like panning for gold... Bearing material in the sump

 

 

 

Perrin Lightweight Crank Pulley

 

 

[Niko]

Wow, it's looking good.

 

Really can't wait to see those new mirrors on it.

 

 

Will be great to see what this can do post-build.

[FOZ_XTC]

indeed!

 

intake side porting (again bad photos!)

 

 

 

[FOZ_XTC]

Pick-up, baffle, sump and heads etc... on her way!

 

 

 

Also picked up a six speed dccd 08+ box 

[FOZ_XTC]

 

 

09 DCCD 38,000 kms

[FOZ_XTC]

Got my baby back on Friday, spent saturday fitting new front wheels, Ganadors and some detailing.

 

 

Something is not right with the cosworth cams - tuner could not get them to zero, so it's running a conservative 177kw @ 14psi with no AVCS

 

 

 

shifter bushes

 

 

 

 

Only got the fronts on, RDA rotors are the wrong offset for the back.

 

 

 

 

Spent Sunday at the WRX Club show n shine @ Federation Square

 

 

 

 

Best Subaru (non-wrx) 

[Barbbachello]

Im just going to leave this here

[FOZ_XTC]

yeah awesome! I should have the gremlins sorted by then.

[FOZ_XTC]

took her for a drive to South Australia on the 14psi run in tune. I like it down here, some great roads / beaches / pubs / wineries

 

 

 

 

 

 

caught up with another Foz (ExRex) on the beach who got these snaps:

 

 

 

back to vic next week and see if i can get this cam issue sorted, no AVCS sux 

 

 

 

[allpaw4]

Wow. Some nice pics! Most of the places visited are pretty awesome for photos even on overcast days.

[Niko]

Overcast days normally equal better photos.

 

Sweet pics, love that blue Foz. Both make me want to swap out my mirrors.

[FOZ_XTC]

so... as you may have read i'm having avcs issues with the new build... 

 

i found this over at club.lib that may help me or others:

 

http://forum.liberty...hp?f=18&t=20233

 

 

 

Symptoms of AVCS out of sync issues:
Rough idle, random flat spots, hesitation, stalling on takeoff, whole car rocks just off idle at around 1300rpm if held at those revs, poor economy.
The issue may be experienced independently of OVC CELs.
Factory diagnosis of my issue reveals the system is working in terms of its feedback loop, it's just unable to operate correctly due to clogging, jamming or wear and tear of one or more of the components.
Logging my Lib reveals laggy VVT operation on the RHS bank (turbo side) during city driving, and oscillation on the RHS bank from 0-51 degrees when cruising in 6th.

Background:
The AVCS system on the 2.5T is implemented to enhance power and economy. 
The system is somewhat prone to failure, mainly limited to one side/bank of the engine.
These failures can be caused by a variety of issues including but not limited to oil and long term wear and tear. 
Failure of the system is not usually catastrophic, but power and economy may be limited from the optimum possible.

From research:
- an oil/filter change has been reported to have fixed mild issues.
- the various electrical plugs and looms relevant to the system should be checked as should battery condition/connection.
- intake cam gear sensors may become dirty and require cleaning but rarely require replacement.
- OCV valves may become clogged with oil sludge or debris, or become worn, requiring at least cleaning but more commonly replacement.
- OCV banjo bolts and or filters (still unconfirmed) may require unclogging
- AVCS inlet cam gears may become blocked with oil sludge or debris or the actual mechanical parts and seals etc. may be damaged preventing correct operation.
- the issue has been linked to phantom knock, presumably noise from struggling cam gears.

Suggested fixes:
UEC, oil flush, oil and filter change.
Inspect, clean and or replace OCV solenoids.
Inspect and clean intake cam sensors.
Replace intake cam gears and do a timing belt service.

Why replace intake cam gears:
Your car has AVCS out of sync issues etc that weren't fixed by cleaning or replacing the OCV solenoids, removing, replacing or cleaning the OCV oil feed line filters, or by cleaning the inlet cam gear sensors. Or if low oil pressure, by checking the oil pickup. Or if hesitation, checking your MAF for cleanliness.
If you have slight AVCS out of sync issues and your oil light stays on for 5-10 seconds on start up, check the condition of your oil pickup: it may be fatiguing.
Check your battery connection and condition as poor battery performance can affect the OCV solenoids.

When to replace intake cam gears:
You have an upcoming timing belt service, engine rebuild, new heads etc. and want to change out all related items for long term reliability. 
Or you just want your car running 100%. 
A timing belt change is required when replacing the inlet cam gears.

To be sure log your car:
Buy or borrow a Tactrix and just log RPM, Speed, and the L & R VVT, OCV duty and OCV voltage parameters.
Log warmup, 60 sec of stationary in-gear 2K rpm, 60 sec of stationary in-gear 3K rpm, then driving below 70Kph, then some freeway K's.
Open logs in ECUedit or Megalogviewer Lite and look for lag or oscillation in the VVT angles.

If they are way out of sync its the inlet gears, solenoids or sensors.
If just a little out of sync: check your oil pickup, oil level and or battery condition/connection.

What does this issue affect and do I need to fix it immediately:
AVCS is implemented for power and economy, thus the issue will affect those aspects negatively: ballpark figure 20%.
Unlike the 2.0t (where the issue of blocked filters in the OCV oil lines would affect flow to the turbo, leading to blown turbo bearings) the issue may not be quite as severe on 2.5's, with the aforementioned reduction in power and economy being the primary effect.

Thus if your timing belt service is too far away or is presently too expensive, consider changing out your OCV's and cleaning/inspecting your intake cam sensors as this operation is independent of the timing belt and is even DIY-able.

Long term prevention:
Research suggests that a shorter oil change interval than recommended e.g. at 5K may be beneficial.
Some recommend doing shorter OCI's along with using an oil with a more aggressive detergent pack, e.g. Delvac MX 15W40.
The ultimate solution could be the addition (and extra complication) of 1 micron bypass filtration.

Let me know if I've missed anything! Cheers, BBB

Original Post:

Logging for my tune revisions is revealing "possible filter basket is dirty/clogged in LH solenoid"...
I'm reading the Service Manual and googling the fix, and will document my progress of course!

Advice proffered: "Solenoid is a 17mm bolt, dont loose the washers! Remove bolt and use a pin or similar to remove the basket. They can be removed completely if required."

Research: "AVCS solenoids/gears are easy to clean. pull out the solenoid, take the cover plate off where the solenoid attach to the heads. Easy clean. AVCS cam gears are also easy to take apart and clean out. Don't forget to clean the cam oil holes as well."

[FOZ_XTC]

Overcast days normally equal better photos.

 

Sweet pics, love that blue Foz. Both make me want to swap out my mirrors.

 

 

here is some blue porn for you Niko:

 

[Niko]

Forking yeah!

 

Good to know those style wheels work on the SH body. Such a good colour theme he's running, just blue and black, screams JDM.

[Adam]

Love this build.

 

Epic work!