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Oil leak around injectors

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Oil leak around injectors

Postby avromo » Sun Aug 09, 2026 9:38 pm

I seem to have an oil leak from top of engine it looks like from around the injectors. Is it worth having a go just changing the rubber washers as opposed to the copper ones as I have read those are more difficult?
If yes do I need to buy genuine ones?
Mk7 2009 T370 140 2.4 rwd
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Re: Oil leak around injectors

Postby knobby1 » Mon Aug 10, 2026 1:06 am

avromo wrote:I seem to have an oil leak from top of engine it looks like from around the injectors. Is it worth having a go just changing the rubber washers as opposed to the copper ones as I have read those are more difficult?
If yes do I need to buy genuine ones?


Injectors have to come out to change the rubber ones anyway....so the copper ones will also need doing and the seats in the head at least cleaned....and reamed if required. Once disturbed, the copper ones will usually leak if refitted.

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2008 2.4L RWD 170+PS 6-speed 350 LWB High Roof..."Full Poverty Spec".

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Re: Oil leak around injectors

Postby avromo » Mon Aug 10, 2026 11:19 am

Oh that sounds like a bigger job!
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Re: Oil leak around injectors

Postby andz327 » Tue Aug 11, 2026 2:01 am

not possible to do the rubber seals without taking injectors out like ma laird knobby said so you'd have to replace the copper compression seals(my preferred make of compression seal is CORTECO) unless your going to anneal the old copper washers back to life

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Re: Oil leak around injectors

Postby avromo » Tue Aug 11, 2026 1:54 pm

andz327 wrote:not possible to do the rubber seals without taking injectors out like ma laird knobby said so you'd have to replace the copper compression seals(my preferred make of compression seal is CORTECO) unless your going to anneal the old copper washers back to life

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Thanks for the advice and the recommended brand, is there any recommendation for rubber seals? What should copper/ rubber seals be costing
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Re: Oil leak around injectors

Postby metalworker0 » Tue Aug 11, 2026 3:06 pm

if ive picked the right one

this is the set i recommend .. comes with all you need and good manufacturer - Payen

https://www.ebay.co.uk/itm/165429791867?

knobby or someone will confirm

all the best.mark
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