1998 996 C2

[ATM]

Edited by ATM on Friday 27th April 09:59

[ATM]

I've finally procured some 17 inch Carrera wheels. Hoping to try them out at some point on the car and see how they feel. First I need to get the locking wheels nuts removed as the car came without an adapter key thing.

[ATM]

Air Conditioning definitely not working.

[ATM]

First time in a while tonight - no ticking noise. Engine got quite hot - not sure if it's related.

[ATM]

https://youtu.be/k5LKI-uFTJY

[ATM]

Took this quick video as the engine was sounding good again today with no ticking noise.

[ATM]

Edited by ATM on Friday 27th April 10:00

[ATM]

bgunn said:

Chris Stott said:

What sort of ticking noise do you have?

Mine has a 'tick' for about 10s when I 1st start it (from cold)... nothing major, just a quiet tick until the oil pressure builds... goes away if I give it a couple of quick blips to 3k... I assume mine is a tappet, but I'll ask my Indy to confirm when it's next in.

Yeah, they all do that sir - mine has the typical IMS chain clatter for half a second from cold start, followed by the gentle rattle of a few hydraulic lifters for a minute or two unless you gently rev the engine to 1200-1500 or so, when it then shuts up. Strangely, more lifters rattle with the Millers nano oil than it did with 5w40 Mobil 1 - suspect the greater viscosity when cold is a factor here.

They're never going to be the absolute quietest engine mechanically, there's a lot of chains driving the cams, especially on an early 5 chain motor with the 'noisy' roller IMS chain.

So I think I've mastered a new technique which rids me of the dreaded tick tick tick ticking. I dont use the car much and sometimes I use it just to drive to work. This might seem reasonable enough for a 911 but bear in mind my car is rock hard and almost unpleasant to drive on average roads at slow speeds especially where speed bumps are concerned. Also I think the dampers take some time to soften up as if they are even harder when cold. So these minor problems are further exaggerated for me as my commute is only a mile or so. I do gym in the morning which is a mile in the opposite direction so all in I am looking at 2 or 3 trips of a mile or so here and there. Probably not the best use of a car which is why I rotate the car I am using from day to day.

The ticking when it occurs is audible for the duration of the drive. So even if I go for a country lane fun time blast the ticking is there. Its not detectable at higher rpm but as I slow down it is audible at lower revs say 1200 - 1500. So it doesn't clear as such as the engine warms up and the oil gets around. Like I say some days it does not happen and some days it does.

What I am doing now is driving with higher rpm so keeping the car in lower gears. So previously I would use 4th at around 30mph and this meant the revs were low-ish. Now I leave it in 3rd. The engine is revving slightly more but its not crazy. Anyway the upshot is the last 3 or 4 times I have used the car in this way there has been no ticking. I'm beginning to think that if I can kept the oil pumping round in this way on the previous drive then the next drive will be ticking free.

So in summary revving the engine more on the previous drive seems to sort it for the next. I've even started revving the engine some before I switch it off. Not very scientific I know but I think more oil pressure is what I need.

I'm also wandering if the parking angle might affect it. Some of the parking spots I use are at an incline and some are flatter.

[ATM]

So I have clutch pedal problems again. Today I got in the car after not using it for 5 or 6 days. I left the car in gear and handbrake on as usual. I found the clutch pedal on the floor. I had to pull it up with my hand. It feels ok to operate but maybe a little bit sticky as if it wants to stay down. Any ideas?

[ATM]

I definitely need some new wheel bolts. Is it worth buying studs and nuts so I can try some spacers?

[ATM]

edc said:

You can get the same collar spec bolts on eBay in a longer length. I've been using a longer eBay set on my car for over 3 years.

And if I am undecided on spacers can I still use the longer bolts without a spacer?

[ATM]

I've done some googling and I cant find the kw clubsport suspension package listed for the vanilla 996, just the gt3.

[ATM]

No plans to sell. Car is such good fun as is.

[ATM]

ATM said:

Does this give you an idea. This is a standard height curb. The front part of the bumper just clears it. Any further forward and I'd have crunched it. I'm in the car today so if you want any pics or I could even pop outside with a rule...

Edited by ATM on Sunday 2nd June 07:03

[ATM]

Edited by ATM on Friday 27th April 10:00

[ATM]

So this is a rule measuring from the top of the wheel - estimate - to the nearest part of the arch. The rule is pressed up against the arch so there is about 5mm before the markings start. Ball park I have about 75mm [80mm is a generous estimate] from top of wheel to arch.

Top pic is front and bottom pic is rear. So the same clearance basically front and back.

These are 18 inch wheels.

[ATM]

Can we talk about oil pressure. I let a friend have a go in the 996 and he came back worrying me about oil pressure. He said the oil pressure rises with revs - this is expected - but then it should level off due to some release valve thing. Now he has me stressing there is a potential problem with the car. How should the pressure behave?

[ATM]

Chris Stott said:

ATM said:

First time in a while tonight - no ticking noise. Engine got quite hot - not sure if it's related.

What sort of ticking noise do you have?

Mine has a 'tick' for about 10s when I 1st start it (from cold)... nothing major, just a quiet tick until the oil pressure builds... goes away if I give it a couple of quick blips to 3k... I assume mine is a tappet, but I'll ask my Indy to confirm when it's next in.

Yesterday I went out in the car and had constant ticking. I only drive about 3 or 4 miles. I then left it for an hour and went out again and constant ticking again. I tried all manner of higher revs and parking a different way round on a slope but still ticking. I was just about to lose my rag when I accidentally discovered if I turn it off for about 10 seconds and then turn it back on the ticking stops. Ok this isn't very scientific but I tried it today and it worked. I did wait till I had a bit of heat in the engine. I'm going to try this a few more times and see how I get on.

[ATM]

Chris Stott said:

ATM said:

Chris Stott said:

ATM said:

First time in a while tonight - no ticking noise. Engine got quite hot - not sure if it's related.

What sort of ticking noise do you have?

Mine has a 'tick' for about 10s when I 1st start it (from cold)... nothing major, just a quiet tick until the oil pressure builds... goes away if I give it a couple of quick blips to 3k... I assume mine is a tappet, but I'll ask my Indy to confirm when it's next in.

Yesterday I went out in the car and had constant ticking. I only drive about 3 or 4 miles. I then left it for an hour and went out again and constant ticking again. I tried all manner of higher revs and parking a different way round on a slope but still ticking. I was just about to lose my rag when I accidentally discovered if I turn it off for about 10 seconds and then turn it back on the ticking stops. Ok this isn't very scientific but I tried it today and it worked. I did wait till I had a bit of heat in the engine. I'm going to try this a few more times and see how I get on.

Odd... it is engine related?

Have you had your Indy have a look at it? Anything 'semi permanent' like that would worry me!

I did but I've since decided to change indies.

[ATM]

Fast Bug said:

Mine does the same for a minute or so until there's some warmth in the engine. If I start it from hot/warm then no ticking. If yours is the same, it's common and is down to the oil draining from the tappets

Mine will tick for several minutes or until I have finished my journey if it is only a few minutes and for the record it annoys the F out of me.