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Daily banter For everything, and anything that doesnt fit in elsewhere |
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#21
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You didnt disappoint MJ! I was waiting for the nightly update
What are doing with the old engine and LPG gubbins then?
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind. |
#22
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The LPG is going back on the new engine although it'll run on petrol until its properly run-in.
The old engine is going in my A4 racecar. Since it only uses oil under 3000rpm, a track car is the perfect new home for it |
#23
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Thanks MJ, your write ups are fascinating and I love seeing how you renew these cars.
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A journey of a thousand+ (epic) miles, begins with a single step, (to the door of an 8). Lau Tzu |
#24
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MJ
Do you get so heavily involved with the D3 S8? Engine replacements etc...... Anyway wonderfully informing posts, I love following these threads.
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'09 D3 S8 - Most of the bells and whistles (B&O, Audi Exclusive brown interior and exterior paint, soft close, ACC etc) de-flapped manifold! |
#25
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Exclusively D2s
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#26
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind. |
#27
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I like those injector cups! I thought you were going to have to change the inlet manifold over!
That's an LPG trait. I ran an old VB Commodore (basically a 1980 Carlton body wise, with Holden mechanicals) on LPG for years. 10,000km oil changes and it always came out a slightly darker clear brown from the new clear amber it went in. LPG burns nice and clean!
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Cheers Marty ____________________ Current: 2001 Audi S8 - Brilliant Black with Black interior, C5 RS6 rims (whenever I actually put them on...), Solar Sunroof, Tinted side and rear glass, RNS-D, Grom, Bose, clunky old phone in arm rest! 2002 Audi S8 - Project Replacement head coming arrived thanks to MJ Silver with Black interior. All features as the '01, with the 'S' mode auto shifter. Dodgey rear tint (need to find a way to get rid of that). Family: 2009 Volvo XC90 V8 R Design - has a louder more obnoxious exhaust than the S8, sounds great! Love this thing - Q7 was double the price, and certainly not double the car! Sold: 1997 Audi A4 - Hamilton's Club Sport, Achat Grey (will miss the old girl) |
#28
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Interesting LPG injector adaptors, look very neat but my first thought was that it is likely to affect petrol injectors with a possibility that petrol could end up on adaptor walls and run down instead of properly evaporating and mixing with air. It's just a theory but could be possible that liquid petrol ends up on cylinder walls and wash down oil making high oil consumption on otherwise healthy engine. I guess it's unlikely as petrol should evaporate well due to engine temperature anyway. If it was direct injection petrol or diesel engine I would be more worried but still something to consider.
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Currently 8less 2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D 8 history: 2006 A8 Sport 4.2TDI quattro SOLD, 1997 S8, reached end of life with gearbox failure |
#29
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Hmm that's food for thought. In that scenario, would you expect it to cause permanently high oil consumption, or only when running on petrol? If its doing it temporarily as a consequence of disrupting the injector spray pattern then I would expect it would not burn oil when running on LPG (on the basis that the LPG doesn't wash the bores).
Given that it uses oil regardless of which fuel it's on, but only at low rpm, I wonder if it has been washing the bores when running on petrol and disrupted proper ring seal? That would be bad as it'll do it to the same to the new engine That said, dodgy rings doesn't really correlate with the old engine being able to hit vmax. Wouldn't it be low on compression in that case and so also be down on power? |
#30
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I don't know, it was just a theory as those LPG adaptors cought my eye. I guess it could be just oil rings that are worn and compression rings still fine.
Oil consumption only on low revs is interesting, isn't it usually the other way round that oil consumption goes up with revs?
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Currently 8less 2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D 8 history: 2006 A8 Sport 4.2TDI quattro SOLD, 1997 S8, reached end of life with gearbox failure |
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