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993Type
Silverstone


Joined: 23 Oct 2012
Posts: 128



PostPosted: Wed Jan 31, 2018 9:08 am    Post subject: Recommended Engine Specialists Reply with quote

Hi,

My car has passed the 100K mark and I’ll be looking at rectifying a couple of small leaks and possibly clutch replacement later in the year plus some ancillary work such a major service and tidying the tinware.

As this points to dropping the engine, I’m going to have the top end refreshed and possibly all the chain tensionors etc done while the engine is out and any recommended upgrades within standard specification. Once completed I’m looking to have the car remapped possibly at chip wizards.

Can anyone reccomend from experience anything specific to add to the list while the engine is dropped and everything is accessible?

From recent experience, can I have recommendations for trusted air cooled experts that can perform and warranty this work?

I’m already in contact with the guys at Strasse and Unit 11 as I’m based in Leeds but as this is probably a once in a lifetime experience for me and likely to be into a good four figure invoice, I’m keen on the latest views (potentially from recent experience but please chip in) for someone going through the engine that knows the 993 inside out and and can guide the process.

I’m also hoping to have the fan painted and the bay tidied up while in there so there will be some cosmetic aspects to the work.

Any guidance on the above appreciated,

Thanks in advance.
 
  
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Robertb
Long Beach


Joined: 01 Sep 2003
Posts: 6529
Location: South Oxfordshire

2002 Porsche 996 Carrera 4S

PostPosted: Wed Jan 31, 2018 9:13 am    Post subject: Reply with quote

Ninemeister in Warrington had a good reputation, when I had a 993 many moons ago.

Or Nick Fulljames, ex Autofarm now at Redtek. Again, good rep.

Hartech... do a great job on water cooled.

No direct experience, just going from what I've heard...
_________________
"911- the guilt-free supercar"

Current: 2003 C4S Coupe, seal/black

Ex: '02 C4S Coupe, '96 993 Targa, '88 Carrera Sport Coupe
 
  
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PH5121
Newbie


Joined: 19 Oct 2017
Posts: 27
Location: Yorkshire


PostPosted: Wed Jan 31, 2018 9:40 am    Post subject: Reply with quote

I use Strasse and would be happy to let Dave Sunderland do any work required on my engine.
 
  
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ChrisT70
Barcelona


Joined: 26 Mar 2015
Posts: 1499
Location: The Sea


PostPosted: Wed Jan 31, 2018 10:25 am    Post subject: Re: Recommended Engine Specialists Reply with quote

993Type wrote:
Hi,

My car has passed the 100K mark and I’ll be looking at rectifying a couple of small leaks and possibly clutch replacement later in the year plus some ancillary work such a major service and tidying the tinware.

As this points to dropping the engine, I’m going to have the top end refreshed and possibly all the chain tensionors etc done while the engine is out and any recommended upgrades within standard specification. Once completed I’m looking to have the car remapped possibly at chip wizards.

Can anyone reccomend from experience anything specific to add to the list while the engine is dropped and everything is accessible?

From recent experience, can I have recommendations for trusted air cooled experts that can perform and warranty this work?

I’m already in contact with the guys at Strasse and Unit 11 as I’m based in Leeds but as this is probably a once in a lifetime experience for me and likely to be into a good four figure invoice, I’m keen on the latest views (potentially from recent experience but please chip in) for someone going through the engine that knows the 993 inside out and and can guide the process.

I’m also hoping to have the fan painted and the bay tidied up while in there so there will be some cosmetic aspects to the work.

Any guidance on the above appreciated,

Thanks in advance.


i'd be interested to see what your quote comes in at, you might be looking nearer to 5 figures if it gets busy in there! good luck.
_________________
Afraid of dipping a toe- beware Sharks
Ex 993S now sold
 
  
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IMI A
Suzuka


Joined: 02 Aug 2014
Posts: 1092
Location: United Kingdom


PostPosted: Wed Jan 31, 2018 11:55 am    Post subject: Reply with quote

You'll struggle to find a better mezger engine builder than Adam at 9e IMO. They do at least one 964/993 air-cooled every month with 12 month warranty and also upgrading some of the inherent weaknesses at the same time to future proof the engine.

Unambiguous pricing too which is nice.

http://www.nineexcellence.com/upgrades/engine.html?find=993--1994-1998--c2-3014

A Porsche owner recently spent 20k on an air-cooled build with a bunch up North won't mention names. Engine pulls perfectly but smokes like a chimney. Car had to unfortunately be sold and the engine is now being rebuilt again by a friend who bought the car. I don't think they bothered to replace the valve guides and stems on a £20,000 engine rebuild! Unbelievable but true.
 
  
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Gaity
Silverstone


Joined: 25 Sep 2008
Posts: 123
Location: Mid-Wales and Sunderland


PostPosted: Wed Jan 31, 2018 3:23 pm    Post subject: Re: Recommended Engine Specialists Reply with quote

993Type wrote:
Hi,

My car has passed the 100K mark and I’ll be looking at rectifying a couple of small leaks and possibly clutch replacement later in the year plus some ancillary work such a major service and tidying the tinware.

As this points to dropping the engine, I’m going to have the top end refreshed and possibly all the chain tensionors etc done while the engine is out and any recommended upgrades within standard specification. Once completed I’m looking to have the car remapped possibly at chip wizards.

Can anyone reccomend from experience anything specific to add to the list while the engine is dropped and everything is accessible?

From recent experience, can I have recommendations for trusted air cooled experts that can perform and warranty this work?

I’m already in contact with the guys at Strasse and Unit 11 as I’m based in Leeds but as this is probably a once in a lifetime experience for me and likely to be into a good four figure invoice, I’m keen on the latest views (potentially from recent experience but please chip in) for someone going through the engine that knows the 993 inside out and and can guide the process.

I’m also hoping to have the fan painted and the bay tidied up while in there so there will be some cosmetic aspects to the work.

Any guidance on the above appreciated,

Thanks in advance.



I had exactly what you are contemplating done (including the chip wizards remap, but not the fan paint) at Unit 11, 6 years (and 27k miles) ago. Hasn't missed a beat since. I can vouch for the quality of the work and wouldn't think of taking mine to anyone else. If you have it all done (and some of the 'while you're in theres'), I would expect it to break into a 5-figure sum (ask me how I know - although I did have a bit of gearbox work done as well). Very Happy
 
  
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ras62
Montreal


Joined: 20 Jan 2012
Posts: 613
Location: Cheshire


PostPosted: Wed Jan 31, 2018 5:03 pm    Post subject: Reply with quote

Another Thumb for Unit Eleven. Excellent work, great value and as much advise as you will ever need.
 
  
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angry
Montreal


Joined: 30 Sep 2008
Posts: 574
Location: East sussex


PostPosted: Wed Jan 31, 2018 5:53 pm    Post subject: Reply with quote

Why "fix" what possibly isn't broke?
Does it burn oil or rattle?
Looked after properly that Engine should do another 100,000 before a top end is even necessary.

Even if they drop the Engine to do the ancillary work/Service/Clutch I wouldn't open the engine up unless it was really tired.
Thats unless you have the spare cash and you just feel like it.
If it gets a clean bill of heath, with good compression, I don't think a top end rebuild will make the car more valuable IMHO
_________________
996 Turbo Previous
993 C2.
 
  
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Ridders
Spa-Francorchamps


Joined: 20 Feb 2008
Posts: 254
Location: Rochdale


PostPosted: Wed Jan 31, 2018 6:46 pm    Post subject: Reply with quote

Unit11 thumbsup
_________________
Ex - Iris Blue 1995 C2 Manual
 
  
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993Type
Silverstone


Joined: 23 Oct 2012
Posts: 128



PostPosted: Wed Jan 31, 2018 8:19 pm    Post subject: Reply with quote

Many thanks for the advice, I take on board about if it’s not broken it won’t need fixing, going to have a compression test etc and any other pre-drop investigation so that I can budget for the fix. Small leak has developed but think this is from when I’ve switched lower cam covers for billet but maintained torque for plastic type, everything was so seized when I did a strip down of the back end for chassis rails I used optimal on everything and maybe a couple of the hex bolts have loosened.

Please feel free to keep the advice coming,
 
  
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chris9682
Newbie


Joined: 09 Nov 2012
Posts: 7



PostPosted: Wed Jan 31, 2018 8:22 pm    Post subject: Reply with quote

Johnny and Danny at unit 11 rebuilt my 964 engine last year.
Easy to deal with no problems and great service
 
  
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Sutton
Spa-Francorchamps


Joined: 04 Mar 2009
Posts: 271
Location: Surrey


PostPosted: Wed Jan 31, 2018 9:30 pm    Post subject: Reply with quote

If you have a rough idea of how many miles you can do before topping the oil up, and how much you need to add, this will be useful information for your mechanic. Your driver's manual indicates what Porsche considers to be excessive consumption.
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1994 993 C4
 
  
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wozy
Österreich


Joined: 06 Feb 2013
Posts: 876
Location: Worcestershire


PostPosted: Thu Feb 01, 2018 11:19 am    Post subject: Reply with quote

I’d think you’d be very very unlucky if your engine needed a rebuild at 100K miles. It’s virtually unheard of. Unless it’s smoking like a Cuban cigar and/or using more than a litre of oil every 1000 miles I’d leave well alone. A little oil getting past the gaskets doesn’t mean it’s time for a rebuild. A lot leak a little with no issues (which normally only starts to happen when some div has used too thin an oil at service).

I’d be revamping the suspension as that’s bound to be worn.
_________________
Porsche Cars of Great Britain launched the 993 in the UK in early December 1993 registering 12 x UK cars on the 6th & 7th of that month; mine is one of them.

993 C2. MBM. C4 mounts, RSRs, RS Short shifter. RS steering wheel. FSDs & M033s
Previous 2.7S, 3.2, 964 and 968CS
 
  
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ras62
Montreal


Joined: 20 Jan 2012
Posts: 613
Location: Cheshire


PostPosted: Thu Feb 01, 2018 12:04 pm    Post subject: Reply with quote

Almost guaranteed that exhaust valve guides will be toast at 100k just as they are on the majority of 964's. With the bottom covers removed it is easy to test for excessive valve stem movement.
Other than this these engines are very robust. Timing can slip depending on what cam fixings are used. RS flywheel and clutch is a nice mod which really livens the car up although its not for everyone, especially if you do lots of town driving.
When comparing quotes, make sure new headstuds are included in the price, it makes a big difference to the bill.
 
  
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993Type
Silverstone


Joined: 23 Oct 2012
Posts: 128



PostPosted: Thu Feb 01, 2018 12:28 pm    Post subject: Reply with quote

Agree on oil, I switched to 10-40 but last couple of Indy services insisted on using 5-40 Mobil One which has added to the problem.

Head studs above is a good one, I’ll factor this in.

There’s no other rattles or such, car pulls like a train etc.

Noted on the suspension, failed MOT on leaking original shock 2 years ago so had the dampers springs and bushes all replaced at a specialist in Leeming.

Would have used COG but it was my main car at the time and I needed it back ASAP. Once the engine leak is sorted and the map is done, I’ll get their set up as I want the steering arms amended to remove the rubber dampers which Chris will do as part of the job.

THEN it will be finished I keep telling myself.....
 
  
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993Type
Silverstone


Joined: 23 Oct 2012
Posts: 128



PostPosted: Thu Feb 01, 2018 12:32 pm    Post subject: Reply with quote

ras62 wrote:
Almost guaranteed that exhaust valve guides will be toast at 100k just as they are on the majority of 964's. With the bottom covers removed it is easy to test for excessive valve stem movement.
Other than this these engines are very robust. Timing can slip depending on what cam fixings are used. RS flywheel and clutch is a nice mod which really livens the car up although its not for everyone, especially if you do lots of town driving.
When comparing quotes, make sure new headstuds are included in the price, it makes a big difference to the bill.


I’ve had the lower covers off recently when I switched to billet, is the slop through wear noticeable? They’ll be coming off again to hopefully nail this one leak and I’d be keen to know what type of tolerance is acceptable.
 
  
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993Type
Silverstone


Joined: 23 Oct 2012
Posts: 128



PostPosted: Thu Feb 01, 2018 12:33 pm    Post subject: Reply with quote

Are the valve guides a full strip down job once the engine is out or just cam covers off? Excuse ignorance but are exhaust outlets just on bottom banks?
 
  
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ras62
Montreal


Joined: 20 Jan 2012
Posts: 613
Location: Cheshire


PostPosted: Thu Feb 01, 2018 12:58 pm    Post subject: Reply with quote

Yes the heads need to be removed which is all part of a top end overhaul. With a large scredriver down the side of the spring on a closed valve you will see the top of the valve move. Anything other than tiny movement (less than a mm?) indicates guide wear.
Danny at U11 is THE man for geo setup btw.
 
  
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993Type
Silverstone


Joined: 23 Oct 2012
Posts: 128



PostPosted: Fri Feb 02, 2018 3:59 pm    Post subject: Reply with quote

What are the timing chain and tensioner replacement schedules?
I did the gasket covers couple of years ago and got to view them but it was a home based strip down with no capacity to change them.
 
  
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ras62
Montreal


Joined: 20 Jan 2012
Posts: 613
Location: Cheshire


PostPosted: Fri Feb 02, 2018 5:54 pm    Post subject: Reply with quote

There is no schedule for replacement of the chains or the tensioners. Chains can only be replaced on a full rebuild with splitting the bottom end but they are bulletproof. Tensioners are oil filled and again dont fail. Chain guides can wear with miles but are easy replaced without need of a top end rebuild and even then its not essential.
 
  
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