1998 996 C2

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Discussion

LordHaveMurci

12,045 posts

170 months

Wednesday 5th July 2017
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Chris Stott said:
Mine packed up about 6 years ago... I keep saying 'I'll get it fixed when I get my bonus'. Then my bonus comes in October, the weather is cooler by then so I say 'I'll do it next year'. It's a circular reference biggrin

As I've found out... there aren't that many days when you really need it.
Have you removed the aircon rads? Was wondering today if I'd bother getting mine fixed if it broke or just have the rads removed to improve engine cooling.

Fast Bug

11,720 posts

162 months

Wednesday 5th July 2017
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Mine isn't very cold, it's had new condensers, so I think one of the pipes may need replacing. Might chuck it in to a KwikFit type place as I'm sure they do fault finding for peanuts

Chris Stott

13,408 posts

198 months

Wednesday 5th July 2017
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LordHaveMurci said:
Have you removed the aircon rads? Was wondering today if I'd bother getting mine fixed if it broke or just have the rads removed to improve engine cooling.
No. Will need to get the AC fixed at some stage - either for myself, or if I ever decide to sell it... and it's more expense to get them removed.

Fast Bug said:
Mine isn't very cold, it's had new condensers, so I think one of the pipes may need replacing. Might chuck it in to a KwikFit type place as I'm sure they do fault finding for peanuts
My experience with KF... they tested for leaks and recharged my system. AC worked briefly, but then packed up again. When I took it back they gave me contact details for a AC specialist... he came, AC worked perfectly. A week later it packed up again. I don't think they can do much more than tell you if you have a leak, and recharge the system.

ATM

Original Poster:

18,300 posts

220 months

Wednesday 5th July 2017
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First time in a while tonight - no ticking noise. Engine got quite hot - not sure if it's related.

Chris Stott

13,408 posts

198 months

Thursday 6th July 2017
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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.

Mines also started to get hot again when in traffic (fixed last time with a new OS fan regulator). Doesn't go above 90ish, but still will need attention. I noticed the engine compartment extractor fan isn't cutting in, so it's most probably that, and it needs a fuse or regulator.

ATM

Original Poster:

18,300 posts

220 months

ATM

Original Poster:

18,300 posts

220 months

Thursday 20th July 2017
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Took this quick video as the engine was sounding good again today with no ticking noise.

ATM

Original Poster:

18,300 posts

220 months

Friday 21st July 2017
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Edited by ATM on Friday 27th April 10:00

bgunn

1,417 posts

132 months

Saturday 22nd July 2017
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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.

ATM

Original Poster:

18,300 posts

220 months

Thursday 3rd August 2017
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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

Original Poster:

18,300 posts

220 months

Thursday 17th August 2017
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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?

harrykul

2,770 posts

227 months

Thursday 17th August 2017
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Slave cylinder? Had a similar issue on my old Saab 900....

zippyonline

354 posts

167 months

Thursday 17th August 2017
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Sounds similar also to slave cylinder on RX-8.

ATM

Original Poster:

18,300 posts

220 months

Thursday 17th August 2017
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I definitely need some new wheel bolts. Is it worth buying studs and nuts so I can try some spacers?

edc

9,238 posts

252 months

Thursday 17th August 2017
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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.

ATM

Original Poster:

18,300 posts

220 months

Thursday 17th August 2017
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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?

edc

9,238 posts

252 months

Thursday 17th August 2017
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ATM said:
And if I am undecided on spacers can I still use the longer bolts without a spacer?
It depends how much clearance behidn there is but most likely not. You will probably find that too long a bolt on the rear interferes with the handbrake mech.

Chris Stott

13,408 posts

198 months

Thursday 17th August 2017
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I have 7mm front and 15mm rear spacers on mine. Came with longer studs.

Should have gone with 15 fronts as well.

was8v

1,937 posts

196 months

Friday 18th August 2017
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Lovely car.

Few things:

1) Bit of mayo in the filler is fine, they all do it. The extended filler hose is cooler and you get condenstaion here. On cars used through the winter you see loads.

2) Coolant should be red stuff, not blue...!?

3) Wheel weights are here: http://www.944racing.de/felgengewichte.php
For lightweight 17's you want the standard multispokes from a 996.2
Lightweight 18s you want 996.2 5 spokes.

4) Suspension - sounds like you want to swap those dampers out, get Bilstein B6 for around a grand for a cars worth. Should be able to punt the KW on.

5) These have so much grip its not socially acceptable to try and drift even a little on the road. I had a 350z once that wouldn't go in a straight line. I likened that to a sledge hammer, and the 996 to a scalpel.

ATM

Original Poster:

18,300 posts

220 months

Tuesday 22nd August 2017
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I've done some googling and I cant find the kw clubsport suspension package listed for the vanilla 996, just the gt3.