Search found 1972 matches
- Sat Apr 20, 2024 5:33 am
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 43
- Views: 1881
Re: Assessing an unknown engine
To my mild amusement, I had a dream last night in which I was loosening a massive nut with enormous force and it suddenly yielded and turned easily. I've been getting quite demoralised these past couple of weeks at work, with some jobs building up and a number of customers getting frustrated with de...
- Sat Apr 20, 2024 4:48 am
- Forum: Classic Porsche General Chat
- Topic: Porsche ranked least reliable car
- Replies: 27
- Views: 2400
Re: Porsche ranked least reliable car
Bear in mind this supposed "least reliable car make" counts among its metrics the cost of repairs, so to some degree it's simply a chart of the "most expensive car make". If you divided all the repair costs by the cars' retail prices, you'd get a new chart showing their actual re...
- Fri Apr 19, 2024 12:26 pm
- Forum: Porsche Parts Wanted
- Topic: Good usable 90mm pistons & cylinders wanted
- Replies: 7
- Views: 149
Re: Good usable 90mm pistons & cylinders wanted
Agree, that ^^^ is a much easier engine and risk-free Rob. I thought a '2.4' conversion to a 2.2 engine was a bit meccarno? Could be wrong, been a very long time since I thought about 2.4's as opposed to 3.2's. I think the Dempsey book goes through a lot of the common tune-up configurations? The bi...
- Fri Apr 19, 2024 12:23 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 43
- Views: 1881
Re: Assessing an unknown engine
If there is a chance Loctite has been used, heat up the big nut to release it. I’ve broken big sockets in the past when they should have been okay because loctite red made a big torque into a ridiculous torque, so i play it safe & warm the nut/bolt. Thanks for the heads up. Makes sense because ...
- Thu Apr 18, 2024 10:02 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 43
- Views: 1881
Re: Assessing an unknown engine
I’ve used a similar massive crows foot in the past with success. Can’t remember about the tensioner, but I guess that’s the way. Do you have the Dempsey book? Invaluable for this stuff Yes, I have Dempsey. My fear was the square drive breaking off the crows foot or cracking... the reality is, the a...
- Thu Apr 18, 2024 6:26 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 43
- Views: 1881
Re: Assessing an unknown engine
I had to get the orange 911 out to turn it around at the weekend, providing the perfect opportunity to bring the engine in behind the car and get it onto a stand. https://uploads.tapatalk-cdn.com/20240418/8564cb56e23f6893ebd464556f026c74.jpg A mechanic friend of mine vouched for automatic transmissi...
- Thu Apr 18, 2024 6:01 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Maddening Running Issue
- Replies: 55
- Views: 1669
Re: Maddening Running Issue
A new pump after 50 years is probably a good investment even if the old one still works. (Just trying to make you feel better about it)
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- Thu Apr 18, 2024 5:28 pm
- Forum: Porsche Parts Wanted
- Topic: Good usable 90mm pistons & cylinders wanted
- Replies: 7
- Views: 149
Re: Good usable 90mm pistons & cylinders wanted
. The 2.7 litre 911 engines have a stroke of 70.4mm so if using the 90mm pistons with a 66mm stroke, the swept volume - & hence the compression ratio - will be (significantly) lower. For instance, if using std 2.7RS pistons with a 66mm crank you'll end up with (from memory) a CR of ~ 7:1 Thus t...
- Thu Apr 18, 2024 1:16 pm
- Forum: Porsche Parts Wanted
- Topic: Good usable 90mm pistons & cylinders wanted
- Replies: 7
- Views: 149
Re: Good usable 90mm pistons & cylinders wanted
. Do you realise that if fitting 90mm pistons you'll end up with quite a low compression ratio ? . No, I was expecting it to be higher. This is on a 66mm crank. Am I being daft (as usual)? Not sure where I can I see the rod length and pin height for the 2.2E vs a 2.7. I presume it depends which 90m...
- Thu Apr 18, 2024 12:45 pm
- Forum: Porsche Parts Wanted
- Topic: Good usable 90mm pistons & cylinders wanted
- Replies: 7
- Views: 149
Good usable 90mm pistons & cylinders wanted
I'm looking for a set of six good usable circa 90mm pistons and cylinders to drop into the 2.2E engine I have, in anticipation of the original Biral cylinders being corroded when I get into them. I understand widening the stud holes for the 2.2 studs can be hit and miss so I'm reluctant to buy new w...
- Wed Apr 17, 2024 7:28 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Maddening Running Issue
- Replies: 55
- Views: 1669
Re: Maddening Running Issue
I asked re unburnt fuel partly in case the mfi timing is off. How about the plugs, what colour are they, and are they wet with unburnt fuel?
If it is fuel I can't be of much help as I don't knownthe mfi system well at all.
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If it is fuel I can't be of much help as I don't knownthe mfi system well at all.
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- Wed Apr 17, 2024 7:18 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Maddening Running Issue
- Replies: 55
- Views: 1669
Re: Maddening Running Issue
That hunting is weird .. so that was at part throttle ? All 6 cylinders effected which does point to something pre the MFI pump if fuel related Thanks James. Yes, part, half, full, makes no odds. Sent from my iPhone using Tapatalk You should hook up a timing light during hunting and confirm there's...
- Mon Apr 15, 2024 4:33 am
- Forum: Porsche Restoration Threads
- Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
- Replies: 2322
- Views: 252298
Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod
I wonder if the greater tappet space on number three exhaust valve indicates that it's not getting oiled as well as the others, or even that the valve was stuck when adjusted?
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- Sun Apr 14, 2024 6:19 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 43
- Views: 1881
Re: Assessing an unknown engine
Ever have one of those days?
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- Sun Apr 14, 2024 10:37 am
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 43
- Views: 1881
Re: Assessing an unknown engine
That's great advice, Graham. On the 3.2 they're Allen nuts which are also more easily accessible. But the standard 3.2 manifold also doesn't have the flange directly above.
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