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Should I try and do a head gasket repair myself??

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo XC90s. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America).
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Should I try and do a head gasket repair myself??

Post by jeffstuckinpa » Wed Jul 31, 2019 8:13 am

Small oil/coolant leak into the spark plugs...

2005 2.5t awd

Is it worth me attempting??


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Re: Should I try and do a head gasket repair myself??

Post by SuperHerman » Wed Jul 31, 2019 1:57 pm

There are plenty of write ups on the process. It is not easy, but not difficult. You need the cam lock tools. Basically you have to take off the upper cam cover, replace the o-rings and then reseal with anaerobic sealant if your problem is only the o-rings between the head and the upper timing cover.

I have one issue - the coolant. Generally it is just oil - I don't understand how coolant is getting in there.

That said, you may have a bad head gasket and leaking oil seals.

I would approach it as a complete head gasket job - have the head machined and pressure tested. Replace the valve stem seals, lap the valves and replace all the seals including the cam shafts.

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Re: Should I try and do a head gasket repair myself??

Post by RickHaleParker » Wed Jul 31, 2019 2:55 pm

Wipe out the oil & coolant then drive it, recheck after. It might just be spillage.

Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0,
Plant Torslanda Sweden.
1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

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