Comp or leak down test?

[Chrisc]

Since the readings were down in all cylinders, there is nothing else that is common is there? Racking my brain, but piston ring failure seems non existent in these engines. Plus on all six!

[Yanto]

I have annual comp test now as part of servicing (insp or oil change) regardless of mileage.

Inexpensive and (reasonable) peace of mind yr to yr.

[cslsuperfan]

NJ fan club

NJ is a good sort

dealt with him previously buying a csl back in 07

Genuine csl enthusiast.

[AlexGTT]

Hope all sorted asap for you.:thumbs:

[Chrisc]

Dropping her off at Bromspec in an hour. So fingers crossed :smt055

[Chrisc]

Good result but please make sure you reserve negative comments about traders/specialists until you have reason.

Hope you get the car back fit and healthy asap. :smt023

Did not mean the comment in a negative way towards Nick, just my experience of dealers is not that good. Just going through one on a mates 330 clubsport, and that dealer is a complete idiot.

So today did a compression test, and as thought the head gasket. Ranging from 115 in cyl 1 and 6, and lower in the other 4. So all chambers down. Needs doing asap, so very sedate driving and hopefully get it in next week. Just hope the heads ok.

I want to do the cam bolts (that come loose) but anyone know the updated part number?

[AlexGTT]

Just a bit of an update, as 99% sure what the problem is. But heard from Nick Johnson, and he has said he will pay for it, or have it transported up to him and have it done up there.

To say I'm amazed is an understatement to be fair. Pretty much every garage I've dealt with has been a nightmare, well when a problem arises , and this seems to be a professional approach! So watch this space, but I will pay for cam bolts and ARP head bolts though.

Good result but please make sure you reserve negative comments about traders/specialists until you have reason.

Hope you get the car back fit and healthy asap. :smt023

[sjb]

Well done :thumbs:

[Chrisc]

Just a bit of an update, as 99% sure what the problem is. But heard from Nick Johnson, and he has said he will pay for it, or have it transported up to him and have it done up there.

To say I'm amazed is an understatement to be fair. Pretty much every garage I've dealt with has been a nightmare, well when a problem arises , and this seems to be a professional approach! So watch this space, but I will pay for cam bolts and ARP head bolts though.

[Chrisc]

It's more what Nick said right at the end, that he does not offer a warranty, and advices to get a BMW warranty instead. :whistle:

It's not a major setback, as shit happens. And can replace head bolts with ARP bolts, plus do the cam bolts just in case.

[shane@mbtech]

Give nick chance to respond first though before you publicly hang him.

He gets some stick from people but I've yet to hear an bad after sales stories about him fobbing customers off.

[Chrisc]

It runs perfectly, but did idle a tiny tiny bit rough, was sorted after new plugs and coil packs though. The rev needle stays perfectly still, but I could hear the engine a tad. Could be me though :whistle:

Comp test and leak test are being done tomorrow, so go from there. Does give me the opportunity to do vanos bolts etc.

And sent Nick Johnson an email, so will wait and hear. I've only had it a few weeks, and was evident before. So ultimately he should of got it done before IMO. Not like he does not make enough out of them is it!

[sjb]

Sounds exactly like mine. At the beginning it was hard to get it to pink on demand when I took it back to the seller. It was only on very light throttle at a certain point in the rev range and load, it did start to get worse though to the point when I had a little race with an apparently lightly tuned '55 plate golf gti and was hard pushed to leave it. After the work driving home with full compression again it was like a different car, thing is if you've bought it already with the HG issue and subsequent lower compression (if my memory is right my cylinders should read 150psi and mine were around 70-90psi ! Luckily no head or block damage. Out of interest does yours idle 100% smoothly? Mine didn't before but now does and is noticeably smoother than before.
Give NJ a call and let him know what's up so he can get prepared to fix it for you
But get it leak tested ASAP

[Chrisc]

What other symptoms would you have with the bridge going between cyl 1-2 or 5-6 etc?

As I'm getting no power loss, and in6th at 2k and pedal fully down, there is no pinking. Just more when it's in 3rd and just applying load. So could it be injector or knock sensor? Nothing on the diagnostics though, like no fault codes at all for the engine. Will check again later, but dry good.

[Chrisc]

Yeah it is pointing to the HG, and not sure where I stand with Nick Johnson, as will probably end up getting legal. He is a trader so minimum 3 month warranty. Been this road before, not with one of my cars, but went through it with a mate on his M3 vert. So well verse in what to do, as HG should be something he would have spotted, and probably did.

To be fair I should of thought more into it, but as the car has a much better sequence to warn people when they are cold, and only 70k on, I didn't think much of it :banghead:

Driving to work it does do it under load, but does not get any worse. But again I have not seen many to compare to.

Compression test I will get done today, and go from there. Don't want to have to fork out £1000 ish for a head gasket!

But not sure what else if anything it could be. Compression test will be first, and just hope the head is ok!