By way of counterpoint - the 700,000 mile Porsche 911. Track days, regular oil changes and used daily. Although to be fair, it did have an engine refresh after 383,000 miles to deal with some minor oil leaks.
https://www.hotcars.com/high-mileage-porsche/
Search found 2066 matches
- Tue Apr 30, 2024 10:01 am
- Forum: Classic Porsche General Chat
- Topic: Porsche ranked least reliable car
- Replies: 32
- Views: 4737
- Tue Apr 30, 2024 8:46 am
- Forum: Classic Porsche General Chat
- Topic: What did you do in/on/for your Porsche today?
- Replies: 8014
- Views: 945459
- Mon Apr 29, 2024 9:29 am
- Forum: Porsche Market Place Discussion
- Topic: Porsche for sale of the day..........
- Replies: 2019
- Views: 573915
Re: Porsche for sale of the day..........
Is it legal to take bids off the wall under the reserve in the US? If so maybe it was that. Deceives buyers as to the value, since they think there are other buyers out there at that money. So I should think you could pin a fraud charge on an auctioneer if you could prove it. Sent from my SM-G988B ...
- Sat Apr 27, 2024 11:00 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 121
- Views: 9139
Re: Assessing an unknown engine
How can you rebuild an engine without cleaning it and leaving broken piston in it? Pistons changed without splitting the case and they thought they got away with it? What do you think caused the oil starvation? Sealant or broken piston? Sent from my 22011119UY using Tapatalk Looks that way - either...
- Sat Apr 27, 2024 6:50 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 121
- Views: 9139
Re: Assessing an unknown engine
Current plan I think is to put it back together with JE 10.5:1 86mm pistons in Biral cylinders. Twin plug the heads, but run it single plug unless needed. Possibly have some case work done. Being 1970 I think it has no piston squirters which might be helpful on a 10.5:1 engine. Not sure about shuffl...
- Sat Apr 27, 2024 6:28 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 121
- Views: 9139
Re: Assessing an unknown engine
I've yet to take apart the cam assemblies and the rest of the engine, but tentatively I'd say the engine was run for a short while after a piston replacement, possibly recently rebuilt, and failed due to chunks of piston left in the engine. The heat, fatigued piston rings and broken valves cutouts i...
- Sat Apr 27, 2024 6:20 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 121
- Views: 9139
Re: Assessing an unknown engine
I'm no expert but the crank journals and shells look to be in good shape to my eye. https://uploads.tapatalk-cdn.com/20240427/d5e8dea232eceea099622666acaf6a2c.jpg https://uploads.tapatalk-cdn.com/20240427/f73ae68e000a6cbd9e6f2547229c1f0b.jpg https://uploads.tapatalk-cdn.com/20240427/f04ca6b98725bdfe...
- Sat Apr 27, 2024 5:11 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 121
- Views: 9139
Re: Assessing an unknown engine
Good and bad sides of oil pump. https://uploads.tapatalk-cdn.com/20240427/ecb0aef283d22c9555c448ac1338169e.jpg https://uploads.tapatalk-cdn.com/20240427/93fa1d25ee993cd6face1d0ea0a76cc1.jpg https://uploads.tapatalk-cdn.com/20240427/847ecbc99d6d487e17b3ab998a526178.jpg https://uploads.tapatalk-cdn.co...
- Sat Apr 27, 2024 5:07 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 121
- Views: 9139
Re: Assessing an unknown engine
Sorry I didn't get a photo, but when I got into the 2nd chamber of the oil pump, I found no aluminium chunks. But it was starved of oil, and the oil pump case was corroded, causing it to be jammed. It turns out I could probably have forced the crank round without doing too much damage to anything. T...
- Sat Apr 27, 2024 5:02 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 121
- Views: 9139
Re: Assessing an unknown engine
That little piece of alloy has stamped on it the numbers 84V5, which is a fragment of the stamping 84V55 which are the dimensions of the pistons, and features in the casting inside them. I checked all the pistons for missing chunks and there were none, so it would seem that this engine has failed im...
- Sat Apr 27, 2024 4:43 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 121
- Views: 9139
Re: Assessing an unknown engine
Ok so I gave the Internet a few days to critique my proposed solution, or come up with a better one. I wasn't that keen on putting a grinder inside the engine as I know how they can grab and shoot across and instantly take a chunk out of something. Here goes nothing... https://uploads.tapatalk-cdn.c...
- Fri Apr 26, 2024 5:38 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Maddening Running Issue
- Replies: 69
- Views: 6053
Re: Maddening Running Issue
Original 1970 tank seen here viewtopic.php?t=68983&hilit=petrol+tank ... e&start=45
72 is the same i'd guess?
72 is the same i'd guess?
- Fri Apr 26, 2024 5:25 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Maddening Running Issue
- Replies: 69
- Views: 6053
Re: Maddening Running Issue
The allen key is the drain plug. The others - one is send and the other return I think. Looks original to me. Does it have a thick plasticky underseal type material all over it? Grey if I remember correctly.
- Fri Apr 26, 2024 3:54 pm
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Maddening Running Issue
- Replies: 69
- Views: 6053
Re: Maddening Running Issue
Sell the fuel tank on ebay (or on here). That will fill a gap for somebody, and people value originality. If anyone wants it happy for it to go free to a good home. I’m not sure if it’s original or not. Sure someone with the skills and time could restore it. PM me if any interest. Sent from my iPho...
- Fri Apr 26, 2024 9:06 am
- Forum: Pre 1974 - Porsche 911 (longhood)
- Topic: Assessing an unknown engine
- Replies: 121
- Views: 9139
Re: Assessing an unknown engine
I thought Mike had retired? Hopefully he still wants to share his experience. Don't the pistons pass through the cylinder holes in the block halves? That lump of alloy jamming the piston should tap back into the case where it dropped in from? Do the rods move on their big ends or tight? When my 3.2...