All Things Mk5 > Members Rides
LC5F's Graphite Blue GTI - Pilgrimage to Caffeine & Machine
LC5F:
Thanks @Pudding
its been a slog - a tooth out is a lot better place to be than where I was a month ago - will dive into my VCDS and see what is saying.
pudding:
:happy2:
Good luck with it. If the timing drift is severe enough, it should throw a "Cam/crank correlation" fault code and you'll know immediately. And also if block 91-4 (I think - cam phase position) doesn't show a reading at all - which will put it in "rich as fook, no VVT, bugger all timing and limited boost" party pooper mode.
The first time I replaced the chain on mine, I didn't know what I was doing and ticked the "seems about right" box, let's start it. After 5 seconds or so of deathly rattling, it all came good. I had gotten away with it :grin:
It is amazing how utterly crap they can run when things aren't 100% though.
LC5F:
Good shout on the spare bolt - I saw the same bolt in the the timing chain DIY - this then found the spare upper cam bolt, that then found a spare silver T30...must be lower timing cover bolt I missed!
My VCDS gave me figures outside your range + 93 wouldn't give any phase - I run my VCDS on a net book, no net connection...feel very old posting a photo rather than snip of the screen!:
Well, finished work and pulled the Golf into its service position on the drive and started pulling everything off to get to the timing belt.
--- Quote from: Pudding on September 03, 2021, 01:42:17 pm ---And also if block 91-4 (I think - cam phase position) doesn't show a reading at all - which will put it in "rich as fook, no VVT, bugger all timing and limited boost" party pooper mode.
--- End quote ---
To ease engine turn over - I pulled the plugs and considering I have done only 10 to 15 miles they are sooty as fook!, didn't mention it took longer cranking to start too - too much retard
Upper cam pulley positioned gives - slightly squint, but I lined up the inner side of the pully with the arrow:
and then diving down below I have:
So I am a tooth out!
I only have engine mount, pulley and lower cover to take off and I will be at the belt again - its now very much beer o'clock... so that will be sorted tomorrow.
LC5F:
Saturday -
spent the day ducking in and out of the rain the met office were not predicting, it took 5 or 6 goes to get the timing to this:
The problem was I would locate the belt, but this would change after adding tension + doing the the double turn of the crank would lose the markings - I ended up marking the desired belt and crank pulley, slackening off and moving the crank 90 degrees clockwise and then back again to keep the markings in place.
I was surprised that there is a very slight off-set at the crank.
Early evening I finally got everything together - the spare silver cam cover bolt was the one that screws into the water pump under the engine mount - so no unknown bolts.
Start up was straight away, no long crank - first drive was frustrating, to give more room I had removed the turbo outlet pipe, I had pulled the clip of the silencer outlet out and I had not checked it had clipped back in.
I got 50m down the road, fist boost and I got a very load Pssssssst as the hose got pushed out!
Sunday -
Fixed the boost leak, and then went for a drive with VCDS running:
Its better than before, just not as responsive.
@Pudding how long did it take to get the hydraulics to start working?
Edit - Since this post, I went for a 40 miles drive mixed roads different speeds
While installing the cams, I know the internal spring loaded clip in the hydraulic ring was activated and suspect it is sitting currently locked in the fixed position - 91 cam adjustment will only change by a degree, otherwise it seems locked to 54.
Treated the Golf to a good wash - think it must have been April when it last got a wash:
pudding:
54KW at idle, wowsers!
I think what might have happened is you timed the cam chain/VVT stuff with the timing belt being off, so it's a double whammy. You might need to go back under the chain cover again mate and reset the VVT timing with the timing belt in the correct position. This should bring you back down to 28KW again.
In it's current timing, it would appear the ECU has no idea where the cam is in relation to the crank, hence no reading in block 93. It's probably why it's not attempting to retard the VVT. It's locked at 6% duty and shrugging it's shoulders. Any movement at all when you rev it up?
Yeah it's normal for the crank pulley to be ever so slightly off when the cam sprocket is lined up correctly.
Lol, I did exactly that with the boost clip last year. A loud bang followed by a few hundreds of crawling down the road into a layby :grin: Luckily I ended up outside a garage and they lent me a jack and some tools, phew!
Mine was stuck at 35KW for about 2 minutes (from cold) and wouldn't retard with revs. I thought Oh sheet, I've buggered the timing, but I turned it off, restarted it, reconnected VCDS and then it came good. Block 93 shows -3KW. I've never been able to get it to 0KW (the theoretical perfect position) but after 160K miles of slop and wear, I'm happy with -3. The acceptable 'tolerance' is +6 to -6KW I believe.
Still only moving a degree or so after the 40 mile trip? If so, it's going to be another visit under the chain cover I'm afraid. Hopefully it'll just be a retime, at worst one of the oil control rings might have snapped when sliding the chain cover back on, therefore the VVT isn't getting enough oil pressure. I believe the middle ring supplies oil to the VVT chambers and the outer 2 rings control advance/retard.
What a pain in the hoop. Far simpler having just one chain do everything instead of a belt AND a chain. VW eh? :grin:
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