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PostPosted: Sat Jun 16, 2012 11:11 pm 
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Hello

I am new to the forum, so not sure if I am asking too many questions (in one post). I bought a Citroen C4 1.4LX (2005) last year with 26K on the clock. Currently, it has done 36K, and at the last servicing I was told that the head gasket has gone...confirmed by oil in coolant, and oil leak around the engine. Bad news, and a rather steep repair bill in prospect. :( The car has an AG system which was apparently installed almost immediately after it was brought out of the showroom. I couldn't find much information on AG systems so I would like to know whether:
1) Do I need to add any additives to the fuel or install some sort of flashlube system in it?
2) If so, should this be done at the same time as when the head gasket is replaced, or is that not necessary?
3) Where around Cambridge can I get the LPG system serviced?

TIA
SG


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PostPosted: Sat Jun 16, 2012 11:42 pm 
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1) No. Flashlube is a lubricant that is injected into the intake to prevent wear on the valve seats and is only required on engines with soft valve seats. The only Citroen engines in the risk list are the 1800 from 98 onwards and the 1.0 litre engine from 2005. I think the 1.4 C4 engine is a derivative of the old Peugeot XU series engine and they are pretty bomb proof.
2) If it was required and it was found that the valves seats were badly worn when the head was off while the gasket was being changed, then it would make sense to do it after the seats have been replaced to prevent the same happening to the new ones. However, I very much doubt any appreciable wear will be found.
3) Although I'm not far from Cambridge, I'm afraid I can't help. I know Tubbs, a professional installer on here, knows someone in the Cambridge area who comes highly recommended though. No doubt he will be along soon to tell you who he is.

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'98 Ex-Police Range Rover 4.0, Singlepoint AEB Leo, my daily motor
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PostPosted: Sun Jun 17, 2012 9:06 am 
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Pm sent.


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PostPosted: Mon Jun 18, 2012 9:28 am 
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@Gilbertd: Thank you for the information. Much appreciated. I am glad to hear that the engine may not need new valve seats, as I was worried that it may have been the LPG system that had a significant contribution to the head gasket failure.

@Tubbs: Thanks for the contact. I suppose I will get in touch with him about the servicing once the head gasket has been replaced.

SG


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PostPosted: Tue Jun 19, 2012 8:06 pm 
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Tsk tsk Tubbs! :roll:


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PostPosted: Tue Jun 19, 2012 8:43 pm 
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indyjukebox wrote:
Tsk tsk Tubbs! :roll:
Huh?

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'96 Saab 900XS, AEB Leo, sold
'93 Range Rover 4.2 LSE, Lovato LovEco, sold
'98 Ex-Police Range Rover 4.0, Singlepoint AEB Leo, my daily motor
'97 Range Rover 4.0SE, eGas multipoint, a project.....

Proud to be a member of the YCHJCYA2PDTHFH club.


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PostPosted: Tue Jun 19, 2012 9:04 pm 
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Tubbs knows what I mean. :)


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PostPosted: Tue Jun 19, 2012 10:09 pm 
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I do :D


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