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Author Topic: What did you and your MKV do today?  (Read 2091586 times)

Offline njr911

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Re: What did you and your MKV do today?
« Reply #12405 on: June 21, 2022, 12:32:22 pm »
Had it valeted in preparation for selling it :(

Offline ROH ECHT

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Re: What did you and your MKV do today?
« Reply #12406 on: June 21, 2022, 09:06:12 pm »
Did a compression test.  120psi across the board.  Time to dump it off to WBAC I think  :grin:
:scared: That's very close to its lower limit of 101.5 psi (7 bar).
K04 PLAY...K04 turbo/S3 INJ. & FMIC/FORGE FMTC, TB hose, & WG actuator/GIAC's H.O. K04 & DSG TUNES/AWE DV/NEUSPEED P-FLO,TURBO OUTLET & TB pipe/AUTOTECH hpfp/BSH Eng.&Trans Mounts/H&R ARB's/Whiteline Performance springs & W.A.L.K./ECS stage-3 BBK/BILSTEIN B8's...ZOOM'DIS...GIAC K04 tune-2007 Volkswagen GTI: 12.823 @ 112.050 MPH__Voting for my Dragtimes link: http://www.dragtimes.com/Volkswagen-GTI-Timeslip-25700.html?r=1

Offline ROH ECHT

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Re: What did you and your MKV do today?
« Reply #12407 on: June 21, 2022, 09:06:55 pm »
:signLOL:
What's the lowest reading that's still ok ?
The BPY here in the states is the same is BWA - 101.5 psi (7 bar).


« Last Edit: June 22, 2022, 04:14:12 am by ROH ECHT »
K04 PLAY...K04 turbo/S3 INJ. & FMIC/FORGE FMTC, TB hose, & WG actuator/GIAC's H.O. K04 & DSG TUNES/AWE DV/NEUSPEED P-FLO,TURBO OUTLET & TB pipe/AUTOTECH hpfp/BSH Eng.&Trans Mounts/H&R ARB's/Whiteline Performance springs & W.A.L.K./ECS stage-3 BBK/BILSTEIN B8's...ZOOM'DIS...GIAC K04 tune-2007 Volkswagen GTI: 12.823 @ 112.050 MPH__Voting for my Dragtimes link: http://www.dragtimes.com/Volkswagen-GTI-Timeslip-25700.html?r=1

Offline OllieVRS

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Re: What did you and your MKV do today?
« Reply #12408 on: June 22, 2022, 01:02:20 am »
Did a compression test.  120psi across the board.  Time to dump it off to WBAC I think  :grin:

Jaysus that's rough. I don't know the specifications for ED30s, but this is what I found for normal GTIs a while back, I can't find the source of the info though
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VW says it should be 170psi+ for new engine and it's time for a rebuild under 109 psi

Provided your compression tester isn't faulty, are there any problems otherwise with how the car drives? Have you had any metal flakes in the oil filter?

Offline Lewo

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Re: What did you and your MKV do today?
« Reply #12409 on: June 22, 2022, 12:04:54 pm »
Noticed yesterday that after fitting the front seats the other day,
that the drivers window now works with one touch to fully open & close.
After fitting the window regulator last year it had stopped doing that and was a pita lol.
Must be having the battery disconnected for an hour maybe reset something?  :rolleye:

Offline Pudding

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Re: What did you and your MKV do today?
« Reply #12410 on: June 22, 2022, 01:40:48 pm »
Did a compression test.  120psi across the board.  Time to dump it off to WBAC I think  :grin:

Jaysus that's rough. I don't know the specifications for ED30s, but this is what I found for normal GTIs a while back, I can't find the source of the info though
Quote
VW says it should be 170psi+ for new engine and it's time for a rebuild under 109 psi

Provided your compression tester isn't faulty, are there any problems otherwise with how the car drives? Have you had any metal flakes in the oil filter?

Ah OK, so I've got 11psi left before rebuild time  :grin:

It could be the tester so I'll order another one and get a second opinion, as it were.

As for symptoms, it's just completely gutless off boost, and not brilliant in boost either.  The throttle pedal just feels like stepping on a bath sponge.  Squishy and lifeless.  Zero response. It's had a new turbo 1500 miles ago, so it's not that. There were tiny gold coloured flecks at the last oil change, which looked turbo thrust bearing colour to me, hence the turbo swap.  But no steel or rod bearing material flakes.

It also struggles to hold the usual 800rpm idle when hot.  The longer it idles, the slower it gets, almost down to 600.  A few times last week when sat in traffic, the idle dropped down to 400ish, bounced back to 800, then again to 400, and so on.  It seems like an injector is dropping out intermittently.  The current set are 80K miles old so wouldn't surprise me. I'm loathe to spend £800 on injectors if the compression is that low.  Engine is going in the bin if that really is the case, well, the whole car will be!

If I stop the engine and restart it, it's perfectly smooth again like nothing happened!  And from cold, it starts on the button and drives absolutely fantastic, almost like a new engine.

If not compression related, it's obviously something electrical but there are never any fault codes when it acts up.  Hence why it's had the parts cannon fired at it so many times over the years and believe me, this ungrateful b1tch of an engine has wanted for nothing!  There is literally is nothing left to replace, except the block & head!

All 4 plugs are dry and the same colour.  It's just unusual to see the whole bank that low on compression, and all at exactly 8.3 bar or something......so maybe it is a sh1tty tester. It's a cheap Gunsons one I bought years ago.  But saying that, the same tester measured 14 bar across the board a few years back, so I dunno......it's puzzling.
« Last Edit: June 22, 2022, 01:42:48 pm by Pudding »


2007 ED30 | 2009 TDI 140

Offline GilesWoodward59

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Re: What did you and your MKV do today?
« Reply #12411 on: June 22, 2022, 04:08:44 pm »
Head gasket, piston ring wear and timing belt / chain stretch can all be causes of low compression across all cylinders. Presume you’ve ruled these out? Also checking  your tester isn’t faulty would be a good plan!
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Offline rich83

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Re: What did you and your MKV do today?
« Reply #12412 on: June 22, 2022, 07:58:28 pm »
2.5T conversation pudding?  :party:

Offline Pudding

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Re: What did you and your MKV do today?
« Reply #12413 on: June 23, 2022, 11:21:30 am »
Head gasket, piston ring wear and timing belt / chain stretch can all be causes of low compression across all cylinders. Presume you’ve ruled these out? Also checking  your tester isn’t faulty would be a good plan!

I did consider the timing could be off because I replaced the chain/VVT stuff not long ago.  For that to be far off enough to affect the valve timing, the ECU would moan about cam/crank correlation and the VVT measuring blocks in VCDS would be off.  Good shout though  :happy2:  I'll double check the timing when I get a chance.

Defo not the head gasket and I've ordered another tester.


2007 ED30 | 2009 TDI 140

Offline Pudding

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Re: What did you and your MKV do today?
« Reply #12414 on: June 23, 2022, 11:22:55 am »
2.5T conversation pudding?  :party:

Nice idea, but there's no way I would put that in a FWD car  :grin:


2007 ED30 | 2009 TDI 140

Offline Pudding

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Re: What did you and your MKV do today?
« Reply #12415 on: Yesterday at 12:12:24 am »
Head gasket, piston ring wear and timing belt / chain stretch can all be causes of low compression across all cylinders. Presume you’ve ruled these out? Also checking  your tester isn’t faulty would be a good plan!

You were right, the tester was bad.  Mister second opinion measured 14 bar across all the whole bank, so back to the drawing board, but I'm relieved the engine isn't fooked.


2007 ED30 | 2009 TDI 140

Offline GVK

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Re: What did you and your MKV do today?
« Reply #12416 on: Yesterday at 12:48:02 am »
Great news Kev ref engine!
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Offline GilesWoodward59

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Re: What did you and your MKV do today?
« Reply #12417 on: Yesterday at 03:01:21 pm »
Head gasket, piston ring wear and timing belt / chain stretch can all be causes of low compression across all cylinders. Presume you’ve ruled these out? Also checking  your tester isn’t faulty would be a good plan!

You were right, the tester was bad.  Mister second opinion measured 14 bar across all the whole bank, so back to the drawing board, but I'm relieved the engine isn't fooked.

The hunt continues!! Glad to hear it’s been saved from the WBAC knackers yard
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Offline Pudding

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Re: What did you and your MKV do today?
« Reply #12418 on: Yesterday at 03:50:18 pm »
Cheers chaps.  WBAC quoted me £1800 for the Eddy by the way  :grin:


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Offline bobby_fodge

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Re: What did you and your MKV do today?
« Reply #12419 on: Yesterday at 07:03:20 pm »
Changed the cam follower.