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LPG, CNG & LNG - General Info and Issues Share experiences and problems |
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xc90 V8Views : 4965 Replies : 12Users Viewing This Thread : |
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Oct 5th, 2008, 13:16 | #1 |
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xc90 V8
Has anyone had their xc90 (or indeed s80) v8 converted to LPG? I nearly signed on the dotted line to have mine done until warned off by the company fitting the system talking of valve seat recession trouble. Basically, might be ok might not.... and if not.... new cylinder head needed. eekkk!!
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Oct 5th, 2008, 18:45 | #2 | |
VOC Member
Last Online: May 16th, 2013 20:28
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Location: West Sussex
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Quote:
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1999 V40 T4 |
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Oct 5th, 2008, 19:21 | #3 |
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Flashlube
Mmmmm yes so I had heard but as someone pointed out flashlube only protects the inlet valves and often the failure is of the exhaust valves. To be honest with a new car having only covered 2.5k miles its not something i want to risk.
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Oct 5th, 2008, 20:13 | #4 |
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you cant afford any risks on this complex engine what's the replacement cost £10,000 ?
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Oct 5th, 2008, 20:52 | #5 |
VOC Member
Last Online: May 26th, 2024 19:26
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Location: Selby, North Yorkshire
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The one place you'll get the definitive answer to your question is Autogas 2000, Thirsk, N Yorks. A long way away from you perhaps, but as your car is worth a lot it pays to get the very best advice, and these guys are the best in the business.
Telephone number is 01845 523 213. They converted my V70 and I've been totally impressed with their work and their knowledge. I am certain you will get all the facts - good and bad - from people who really do know their stuff. Cheers Jack |
Oct 8th, 2008, 22:36 | #6 |
GavinC
Last Online: Oct 13th, 2012 18:51
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Location: Harrogate
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Re Autogas 2000 in Thirsk... I would very much second that recommendation having had dealings with them myself. Good outfit.
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Oct 9th, 2008, 20:58 | #7 |
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Lpg
Thanks a lot your guys. I will give it some very carefull thought before proceeding. In fact since my first post I now am leaning towards converting my 1997 960 instead and using that for work thus saving the V8 for best and hence less fuel. I`m informed that the 3.0 24v straight six is much better suited to LPG.
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Oct 31st, 2008, 14:36 | #8 |
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hi,
valve seat recession only affects engine whose valve seats or only just hard enough to deal with unleaded fuel. volvo isnt a manufacturer with 'on the limit' valve seats and lpg isnt a problem. The volvo bi-fuel engines are structurally unmodified from the petrol only variants. where did you hear the V8 was problematic on LPG? Honda and Toyota are brands which use seat which only just cope with unleaded so lpg is a no no for them |
Oct 31st, 2008, 18:38 | #9 |
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That was certainly the case in the 1980's when i was doing official Volvo LPG conversions on 200's and 300's but alas not today ..Actualy the Volvo Bi-Fuel heads are different to normal, their valves and seats are supposed to be even harder than standard but there was a batch in 2002 which weren't and the valve clearances were reducing to zero .volvo were changing heads on 4 cylinder Bi-Fuel cars due to valve seat recession under a Policy action . I have seen non-volvo LPG conversions causing this problem too on a 960 and a S 40 the problems became apparant on both cars around 50000 miles after conversion ...
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Nov 1st, 2008, 08:26 | #10 |
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valves
Hi Shimon, it was actually the LPG distributor that warned me of it. The volvo V8 is made with/by Yamaha and it is this Japanese connection that I think raises the concerns.
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