Fuel leakage, from where?

guillermo · Unread post by **guillermo** » 21 Jun 2005, 19:06

Hello All
Three days ago my xantia HDI with 210000 KM in the clock started to leak fuel, the sub frame and the lower part of the chasis got wet, with diesel fuel. I´m not 100% sure, but I think it cuold came from the high pressure pump, most probably from the axis seal, them to the cambelt housing, them outside it to the subframe. The rest of the engine is dry, no apparently leaks in the pipes unions etc.
Please if someone has had some similar problem I would like to know how did he solve it.
Any advice would be really appreciated.
Regards from south america.
Guillermo

Kowalski · Unread post by **Kowalski** » 21 Jun 2005, 19:52

The earlier TD Xantias have a pair of flexible fuel pipes that go down the back of the engine, down the bulkhead. These are prone to hardening and cracking, does the HDI have the same pair of pipes?

j_roc · Unread post by **j_roc** » 21 Jun 2005, 19:52

Just a thought, but have you checked the Diesel fuel return line (to the tank)? Its a bit strange, but al the fuel line problems I seem to have on cars be it Citroen, Austin Morris or a Ford is always to do with these pipes???? Also I would check that Fuel aint run down inside the timing belt cover - it can cause the belt to snap if it comes into contact with it. Hope this helps

Kowalski · Unread post by **Kowalski** » 21 Jun 2005, 22:09

Just to clarify, one of the pair of fuel lines I mentioned is the return line.

guillermo · Unread post by **guillermo** » 21 Jun 2005, 23:17

Dear friends,
Thank you for your advices and opinions.
Unfortunately I already have checked the fuel lines and they seem to be OK, but a new idea come up, even it is not very probable, in the case the return line were clooged or obstructed, it can lead to a pressure increase in the return line of the pump, and make it leak.
Until yesterday the cambelt was dry, even though its cover is wet.
I´m afraid that it must be something wrong with the pump.
any other advice would be appreciated.
Regards

citronut · Unread post by **citronut** » 22 Jun 2005, 00:43

with mileage it is probable pump front seal is leaking,it is fairly easy to fix but youd best replace cam belt at same time as it has to be removed to replace seal,lots of damage if belt fails,remove cambelt,pump sprocket then just prise seal out fit new one re/assemble regards malcolm

Unread post by **citroenxm** » 22 Jun 2005, 00:53

Fairly easy on older Roatry pumps.. Anyone done the New Electronic Pumps.. Just a thought they may be very different, as the HDi's are different to the IDI D Turbos.
Have you checked the Return Pipes from the injectors???
Regards
<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by citronut

with mileage it is probable pump front seal is leaking,it is fairly easy to fix but youd best replace cam belt at same time as it has to be removed to replace seal,lots of damage if belt fails,remove cambelt,pump sprocket then just prise seal out fit new one re/assemble regards malcolm
<hr height="1" noshade id="quote"></blockquote id="quote">

guillermo · Unread post by **guillermo** » 22 Jun 2005, 00:53

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by citronut

with mileage it is probable pump front seal is leaking,it is fairly easy to fix but youd best replace cam belt at same time as it has to be removed to replace seal,lots of damage if belt fails,remove cambelt,pump sprocket then just prise seal out fit new one re/assemble regards malcolm
<hr height="1" noshade id="quote"></blockquote id="quote">
Dear Malcom,
Have you done this job in a HDI engine? The seal is a normal seal?
Excuse me for my cuestions, but I already have change this seal in " normal injection pumps" which is easy, but never in a HDI engine.-
Regards
Guillermo

citronut · Unread post by **citronut** » 22 Jun 2005, 01:02

no Guillermo i havent done HDI one yet dint notice that it is HDI,some one on here will know im sure regards malcolm