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Old 16-08-2019   #61
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Re: Gasoline smell in oil

Well I don't wanna risk it :-) Because wrapping will also hold heat inside header. It can reduce heat in space around engine, but it holds that heat inside. And that may cause bigger damage than I can imagine
Better way will be making own heat shield and put it between ex. man. and engine body
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Old 18-08-2019   #62
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Lightbulb Re: Gasoline smell in oil

I'm thinking the same. There is probably thermal design issue. Main focus was the Euro4 (and higher) emissions. And they ("designers") ignored the rest.

Catalytic converter is heating up the engine (oil pan, block, head) and engine bay in general (spoiling engine performance - hotter intake air), when you are stuck in the traffic.

Original heat shield is a "windscreen", to protect cat. from cooling (and rain) while driving at high speeds, that's all.

Moderate exhaust wrap (mostly manifold, pipes, not cat.), with thinnest possible bandage would probably help.
And/Or extra heat shield between the cat. and engine. Some aluminium sheet.
I will try something (shield or wrap - don't know). Shield seems to be safest option (heavy wrap can spoil the cat. - that's what they say if you search the internet).
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Last edited by GrandePunto PL; 18-08-2019 at 12:55. Reason: ...SHIELD is the first option.
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Old 19-08-2019   #63
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Re: Gasoline smell in oil

Yes, but shield shouldn't be very broad, otherwise it will block incoming air from left & right side to cool engine block while riding I think...it should be wide as original shield
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Old 3 Weeks Ago   #64
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Re: Gasoline smell in oil

Update on ticking issue - I listened hot idle engine noise again, but what I noticed is squeaking of camshaft. As you remember, I had oil sludge (burned oil) on VVT solenoid. Guys in service cleaned what they can from camshaft space. But - on 1.4 8V is metal plate mounted below valve cover. Oil is distributed from cylinder head through hole with gasket up, directly between valve cover and that metal plate, and there in narrow (skinny) space is distributed to VVT solenoid and to lubricate camshaft throug other holes in that metal plate.
So I think that tehre can be still oil sludge (burned oil) between valve cover and it's metal plate and oil isn't distributed well on all parts of camshaft. And that's causing that camshaft's squeaking, and maybe also that ticking. Because oil acts not only as lubricant, but also cools down engine parts.
I'll remove valve cover, and now the question:
-> may I re-use valve cover's gasket? This gasket was replaced by authorised service appr. half year ago...so maybe it's re-usable again?
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Old 2 Weeks Ago   #65
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Re: Gasoline smell in oil

You could give it a go. If it leaks is easy enough to change.
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Old 2 Weeks Ago   #66
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Re: Gasoline smell in oil

And I need also special silicon which is putting on 4 places right?
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Old 2 Weeks Ago   #67
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Lightbulb Re: Gasoline smell in oil

If gasket is still flexible, it can be reused multiple times. Do need to change it.

Four points (corners, arches) is a minimal version. It is better to glue whole gasket to the head. Lay tiny trace all around the head. On "four points" little bit more.
It will seal 100% guaranteed, no leaks ever.

Only downside: it will be annoying to clean it next time you pull the cover.
Silicone should be "high temperature" version. Preferably one that doesn't smell like a vinegar.

In theory there is something in the cheapest silicone products, that can poison catalytic converters.
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Last edited by GrandePunto PL; 2 Weeks Ago at 11:50. Reason: RTV tip.
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Old 1 Week Ago   #68
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Re: Gasoline smell in oil

OK, thx ;-) This weekend I'll do this:

1, take head cover off
2, clean everything around camshaft
3, check if all oil channels are clean
4, check status of lashes + valve clearances
5, check camshaft status
6, check if oil return channels are clean
7, clean head cover, especialy between it's top body and metal plate inside

I will take a lot of detailed pictures & publish it here
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Old 1 Week Ago   #69
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So I did it. On pictures is shown another proof that engine was overheated - see dark red areas on camshaft. Oil sludge inside valve cover, but nut so much as I expected. I cleaned all oil passages. Vlave clearances 0.35 intake, 0.4 exhaust. Overal condition of lashes OK. So I completed it all back. Work for 2 hours, but that was my 1st time job. I used Loctite high temp sealant under valve cover gasket on 4 places. Looks that it holds OK. Pictures are before cleaning
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Last edited by Rado77; 1 Week Ago at 20:38.
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Old 1 Week Ago   #70
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Re: Gasoline smell in oil

So nothing changed, except that camshaft squeaking. Outside temp is now 13 degrees and when I stop car with engine on operational temp, there's no ticking. But if I let car run on idle, and engine isn't cooled by outside air, ticking will start.
So as I thought, it's really depending on temperature and engine cooling by outside air. Very strange issue :-) I'll see after next oil change + using different oil filter. As we know, history of this engine is unknown. Ex valve on 3rd cylinder has been changed by someone, so maybe there was timing belt damage. And then previous owner has to overheat engine (oil sludge, burned oil, wried ex manifold) because of lack of oil. So maybe there's still burned oil on oil piston ring on one piston and ticking is caused by small piston slap...or it's grinded pin...hard to say... So I'll see after next oil change
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