Spoke too soon? S1 odd noise...

timmsky · Post by **timmsky** » Wed Jun 20, 2007 5:40 pm

RICHARDHUMBLE wrote:Fixed it yet?

Your faith in the UK postal service knows no bounds Richard

No doubt Neil's old pulley is winging its way to me as we speak, courtesy of Robin...

Then it will be fitted and fingers crossed, fixed...

Cheers,
Iain

Lawrence · Post by **Lawrence** » Wed Jun 20, 2007 6:05 pm

100:1 it's fecked

oh dear! hope not!

I wonder why they introduced that cut out in the flat of the pulley as that has caused the misalignment

Perhaps you should say where you found such a heap of garbage so we can all avoid them at all costs

timmsky · Post by **timmsky** » Wed Jun 20, 2007 6:10 pm

Lawrence wrote:100:1 it's fecked

oh dear! hope not!

I wonder why they introduced that cut out in the flat of the pulley as that has caused the misalignment

Perhaps you should say where you found such a heap of garbage so we can all avoid them at all costs

I haven't a clue Lawrence, it's how the car came from Matt!! He might know who did the alleged work on the pulley when allegedly the woodruff key was destroyed previously.... Those are the feckers to avoid like the plague. Mind you, he did do a Stelvio after having it fitted

I think the pulley is just for the bin, but it might make an interesting paperweight.... the end of the crank upon closer inspection doesn't look too bad so i'm guessing the pulley is the sacrificial bit, as you would suspect...

Cheers,
Iain

robin · Post by **robin** » Wed Jun 20, 2007 6:33 pm

fd wrote:
robin wrote:It'll be a VVC
Robin
Nope . . . if you're referring to my post . . .

Is Neil's stamped VVC ? 'cos the one I was looking at wasn't.

Fd

No, what I meant was that once the McKean pulley is fitted to the ropey crank, Iain's engine will be a VVC

Cheers,
Robin

timmsky · Post by **timmsky** » Thu Jun 21, 2007 8:07 am

robin wrote:
fd wrote:
robin wrote:It'll be a VVC
Robin
Nope . . . if you're referring to my post . . .

Is Neil's stamped VVC ? 'cos the one I was looking at wasn't.

Fd
No, what I meant was that once the McKean pulley is fitted to the ropey crank, Iain's engine will be a VVC

Cheers,
Robin

timmsky · Post by **timmsky** » Fri Jun 22, 2007 9:48 am

Thanks Robin,

The pulley arrived so will get that fitted at the weekend after a bit of re-shaping of the belt retaining collar. I guess you had as much trouble getting that one off as I did

Thanks,
Iain

timmsky · Post by **timmsky** » Mon Jun 25, 2007 8:38 am

Okay - I think it's f..ked.

Fitted the McKean pulley and torqued to 205Nm (funny as fcuk but that's a different story) and got the timing synced as per the manual. Fitted the belt (no small feat!!) and re-checked the timing, everything all in it's place, block of wood still between the cam pulleys. The chopsticks all lined up (all 4 pots at TDC) and the cam timing marks aligned horizontally.

Re-tensioned the belt and checked the timing again. Everything ok, so I removed the block of wood, refitted the spark plugs/leads etc...

Jump leads connected so there's plenty of power...

When cranking it makes that 'no compression sound' just like when the spark plugs are out. I checked the belt etc, cams etc are all turning, and they are. Its just whirr..whirr.whirr, rather than chugga..chugga.chugga.. .. IYSWIM

I reckon there's no need to spend good money on a compression tester when the evidence is pointing to bent valves...

I welcome all thoughts in case i've missed something obvious, and of course all offers for an engine...

Guess the MOT will have to wait a bit longer then.....

Cheers,
Iain

robin · Post by **robin** » Mon Jun 25, 2007 9:02 am

Hmm - how did you tighten the crank pulley bolt *before* checking the timing ... never mind, I concur that it is now f*cked ...

BTW, the pots are neither at BDC nor TDC when the timing is set - they are all exactly half way in between (think about it ...).

You don't need a new engine, though that might fix it - you just need some new inlet valves in all probability - whip the head off and take a look - as long as the impact hasn't damaged the pistons (and I suspect it won't have) you probably just have some valves that are a bit bent and so not closing properly, hence no compression.

You could get new bigger inlet valves (this helps remove the damaged metal around the valve seats) and the head reworked at the same time for <500 quid and end up with an engine that makes 145BHP. Sure you could buy a second hand engine for the same, but this way you get more power

Cheers,
Robin

Rich H · Post by **Rich H** » Mon Jun 25, 2007 9:29 am

Valves are cheap, I got a set of pattern valves for £16 for all 8 inlets. Make sure you get a valve spring compressor that fits though, the bit that fits the spring cap is quite long as they are recessed into the head.

fd · Post by fd » Mon Jun 25, 2007 9:48 am

Was it making a more normal noise during cranking before you discovered the pulley issue ?

Fd

timmsky · Post by **timmsky** » Mon Jun 25, 2007 11:03 am

robin wrote:Hmm - how did you tighten the crank pulley bolt *before* checking the timing ... never mind, I concur that it is now f*cked ...

BTW, the pots are neither at BDC nor TDC when the timing is set - they are all exactly half way in between (think about it ...).

You don't need a new engine, though that might fix it - you just need some new inlet valves in all probability - whip the head off and take a look - as long as the impact hasn't damaged the pistons (and I suspect it won't have) you probably just have some valves that are a bit bent and so not closing properly, hence no compression.

You could get new bigger inlet valves (this helps remove the damaged metal around the valve seats) and the head reworked at the same time for <500 quid and end up with an engine that makes 145BHP. Sure you could buy a second hand engine for the same, but this way you get more power

Cheers,
Robin

I tightened the crank pulley bolt whilst it was still on the ramps.. car in 5th gear, handbrake on, front wheels chocked. It was a little funny/scary when tightening though as the force of torqueing up the crank bolt was trying to turn the wheels which in turn was pushing the ramps backwards from underneath the car... in the ned I got a click from the torque wrench so called it done.

Oh yes, I have my NEBOSH certificate

Even though I could get a new head and do the work you are suggesting, I really think there is an underlying issue with the crank. The new pulley slipped on easily however there was about half a tooth slogger when fitted, suggesting the flat on the end of the crank has been worn.

I don't think this would help in the long run and the same thing would happen again where the pulley flat will wear off and the pulley will end up riding round the crank stub.

I guess I could change the head out like you suggest then build up the bottom end with forged pistons and a qwality crank, but i'd really like to use the car before the "alleged" summer has gone.... and try to keep to a minimum budget

What do you think?
Cheers,
Iain

Rich H · Post by **Rich H** » Mon Jun 25, 2007 11:07 am

New lump then.

Rebuild the old one over winter

timmsky · Post by **timmsky** » Mon Jun 25, 2007 11:08 am

fd wrote:Was it making a more normal noise during cranking before you discovered the pulley issue ?

Fd

Are you thinking maybe the timing is set wrong? Could be I suppose, but I checked everything and all the marks were lining up, both cam pulleys and the crank pulley.. ?

There did seem to be some compression there before I set the pulley . . .

The noise it is making now, is as if the plugs were out, you know that simple whirring, turning over noise, but no pressure..?

The chopsticks were all level and the cam timing marked aligned, so even if I was a tooth or two out on the belt (I don't think I am) then you would still expect some back pressure, no?

Cheers,
Iain

timmsky · Post by **timmsky** » Mon Jun 25, 2007 11:09 am

RICHARDHUMBLE wrote:New lump then.

Rebuild the old one over winter

50% of my thinking Richard

new lump - bin the old one

Rich H · Post by **Rich H** » Mon Jun 25, 2007 11:26 am

I'll come get the old one then