Mayo in Oil Filler Tube
Mayo in Oil Filler Tube
While refitting the split hose I noticed it will lined with a nice yellow/toffee colour mayo like substance I am aware that this is a common sign that the head gasket is dead or dieing and I would like to know before I start the big job of replacing it, not looking forward to the exhaust pipe bolts, is this a common issue with BX's? I am considering taking it to college over next week and dip testing with the magic blue chemical but would like your guidance and knowledge first as I really don't have time to replace the head gasket right now.
- Philip Chidlow
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This happens to an extent with all petrol BXs (don't know if it happens with diesels). The mayo is down to condensation. Clean it out regularly and make sure the upper pipes aren't blocked. Short runs and cold weather will make it worse.
To be sure, take the rad cap off. If the mayo's there too, well it is not such an innocent problem...
To be sure, take the rad cap off. If the mayo's there too, well it is not such an innocent problem...
• 1992 Citroen BX TZD Turbo Hurricane
• 2006 Xsara Picasso 1.6 16v
• 2006 Xsara Picasso 1.6 16v
Yep, this is normal and even happened when they were new.Philip Chidlow wrote:This happens to an extent with all petrol BXs (don't know if it happens with diesels). The mayo is down to condensation. Clean it out regularly and make sure the upper pipes aren't blocked. Short runs and cold weather will make it worse.
1991 BX19GTi Auto
- Mike E (uk)
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All my BXs (all petrol) have done/do this. I have never had a head gasket problem on any car I have owned.
Each oil change, I take off the emission control hoses and the oil filler cap, and wash them through with the garden hose.
I replaced the rusty gause in the cap with one of those stainless steel kettle anti scale devices. Much better, does not corrode and is easier to clean.
Using a semi synthetic oil seems to help, but the mayo always reappears in the end.
I don't worry about it any more. It is normal.
Mike
Each oil change, I take off the emission control hoses and the oil filler cap, and wash them through with the garden hose.
I replaced the rusty gause in the cap with one of those stainless steel kettle anti scale devices. Much better, does not corrode and is easier to clean.
Using a semi synthetic oil seems to help, but the mayo always reappears in the end.
I don't worry about it any more. It is normal.
Mike
la BX 16 soupapes: sachez apprecier avec moderation.
It might be clever now, but it won't be in the morning!
It might be clever now, but it won't be in the morning!
Its Normal to have Mayo in your filler cap.
Headgasket Failure on the BX is never a simply diagnostic. Should know had one fixed that took a year before finally giving out and none of the so called symptoms were present or consistant.
Basically if you drink a lot of Water thats a good sign of Head Gasket Failure. Didnt have the Oil in Water and vica versa symptom.
What I did have was a cyclinder full of water after leaving the Car Standing for 3 weeks.
But Mayo is not a relaible sign as the BX is famous for it.
Headgasket Failure on the BX is never a simply diagnostic. Should know had one fixed that took a year before finally giving out and none of the so called symptoms were present or consistant.
Basically if you drink a lot of Water thats a good sign of Head Gasket Failure. Didnt have the Oil in Water and vica versa symptom.
What I did have was a cyclinder full of water after leaving the Car Standing for 3 weeks.
But Mayo is not a relaible sign as the BX is famous for it.
1991 BX19 TZS 04/01/91 (Deceased)
1990 BX19 TRS 27/10/89 (Reborn)
1992 BX19 TXD (Ex UK - K 744 SDF) 15/06/92
1990 BX19 TZS Auto 06/11/1989
1992 BX TZD Turbo Estate (Ex UK) 1/07/91
1990 BX19 TRS 27/10/89 (Reborn)
1992 BX19 TXD (Ex UK - K 744 SDF) 15/06/92
1990 BX19 TZS Auto 06/11/1989
1992 BX TZD Turbo Estate (Ex UK) 1/07/91