| Author |
Message |
William Badurski (Billb)
Junior Member
Username: Billb
Post Number: 193
Registered: 6-2001
| | Posted on Thursday, August 07, 2003 - 10:09 am: | |
The one I'm currently doing had 70k miles. Found one broken top ring, and the cylinders out-of-round over spec. Valves were also leaking, and worn beyond regrinding (would be too thin afterwards). Valve springs below minimum seat pressure too. The engine still ran reasonably well, but had low compression on several cylinders.
Don't know the history, so that may have an effect. It would appear valves were reground once before since they would not accept grinding this time. |
Terry Springer (Tspringer)
Member
Username: Tspringer
Post Number: 702
Registered: 4-2002
| | Posted on Thursday, August 07, 2003 - 8:40 am: | |
Mine has 15K miles on a rebuild. It had about 50K miles when rebuilt, but it was not really worn out. The prior owner wanted it rebuilt for more power. It runs great now, high oil pressure and does not use a measurable amount of oil. It will puff a tiny amount of smoke on cold startup sometimes and also if you stomp the accelerator... but my understanding is that is normal with webers. They have a reputation of being very strong engines. |
Rijk Rietveld (Rijk365gtb4)
Member
Username: Rijk365gtb4
Post Number: 264
Registered: 1-2002
| | Posted on Thursday, August 07, 2003 - 7:19 am: | |
Edward
I have 50K miles on my Daytona engine. No trace of weakness. Oil pressure is high, and the engine hardly uses any oil. When I bought the car the compression and leakdown tests were excellent
Rijk |
Philip Airey (Pma1010)
Member
Username: Pma1010
Post Number: 351
Registered: 7-2002
| | Posted on Thursday, August 07, 2003 - 7:11 am: | |
But I'd guess it falls into the OMG category when it needs doing... |
dave handa (Davehanda)
Intermediate Member
Username: Davehanda
Post Number: 1528
Registered: 5-2001
| | Posted on Thursday, August 07, 2003 - 12:39 am: | |
Well I have two friends with over 50k miles and neither has had a major overhaul. I don't think either has had any top-end work either. |
Edward (Edward_96gts)
Junior Member
Username: Edward_96gts
Post Number: 80
Registered: 8-2002
| | Posted on Thursday, August 07, 2003 - 12:20 am: | |
miles can the v12 go before it needs a major overhaul? 30k miles, 50k miles?
TIA |