2000 S70 T5 Stalled on freeway

clifford06 · Post by **clifford06** » 29 Jun 2015, 18:05

Greetings. Well I pulled the cam cover . Cams stayed in the head. Great, because this is one of things Robert stressed. Now I have to remove one stubborn exhaust bolt. Bought a storage kit ( Harborfreight ) to keep lifters oil soaked. Cams look ok, just carbon build up between lifter contact points. Pics to come. Hopefully.

clifford06 · Post by **clifford06** » 04 Jul 2015, 13:48

Greetings . Finally removed my head. Views and thoughts respected.

clifford06 · Post by **clifford06** » 04 Jul 2015, 14:21

: cylinder 5

: cylinder 4 and 5 look bad

: cylinder 4

: cylinder 3

: cylinder 2

[/attachment] Some more pics.

Post by **FLXC90** » 05 Jul 2015, 17:14

From what I can see, all valves contacted pistons. Any valve whose head is not square with, and in it's seat is probably bent. That's the bad news. Big question now is whether the guides took any damage. I have not personally rebuilt any of these heads (Yet!) (right now I'm on the second Kia motor in the past six months! Darned Kids

)But, from what I've read so far, it seems most times just the stem at the head bends, new valves and you are back in commission. Based on mileage, wear, etc, make the call on repair or replacement of head. From what I've seen, the sodium filled valves are pricey. (Used good ones might be an option)

I like the engineering of these things, and everything else I have the "pleasure" of owning and working on has it's own set of pitfalls and shortcomings. I say get dirty, and get back on the road with something you know will last a lot longer after the repair.

Post by **rspi** » 05 Jul 2015, 17:58

clifford06 wrote:Greetings . Finally removed my head. Views and thoughts respected.

Yes, looks like a lot of valve damage.

I don't see any sludge. What were you doing with oil / changes. Running synthetic?

If you drag this out long enough, I'll be doing a Texas helper tour. Maybe I'll be able to help you get it back together.

Post by **FLXC90** » 06 Jul 2015, 07:15

On a second look, it only looks like intake valves bent. Take some with you Robert!

clifford06 · Post by **clifford06** » 06 Jul 2015, 21:50

Greetings. Oil changes were done every 3000-3500 miles with Castrol Blend . It surprised me that most of damage was on the intake side. I always thought exhaust would take the majority of damage. Are both intake and exhaust sodium filled ? In this type of case do you guys think the guides are damaged also ? Have any of you rented the valve spring compressor from Autozone/ O Reilly, if so any luck with it ? My reason for asking is watched a Youtube video of 2.4 valve job , and the guy had to make a adapter to remove the keepers due to the valves being recessed in the head. Thanks for the responses.

Post by **abscate** » 07 Jul 2015, 10:19

Ill wait for the experts to chime in on this but there isn't any reason to use sodium filled valves on the intake side since they are cool - cooled by incoming air fuel mix.

Exhaust side is where you need them.

clifford06 · Post by **clifford06** » 07 Jul 2015, 19:14

Greetings. Thanks abscate for the response. When I opened this head, I noticed the difference of the valves. In a perfect world I could get away with just intake valves. My luck, all exhaust valves made some degree of contact with pistons. Valve guides ? Let us pray.
My next concern is the "stained headgasket" impression . To the finger touch some areas are smooth But some areas have the feel of the gasket material or pattern ( cylinder dark areas 1,4,5). Is this common ? Should this be a machine shop removal ? Or will longer soak in Mean Green do the trick?
I ask because I have seen video where "certified mechanics" use Scotch-Brite pads to remove this type of area on cylinderhead surfaces such as I am asking about. I know Scotch Brite in block area is a NO NO.
If machining bottom of head area is suggested, I will. Thoughts and opinions respected.

Post by **FLXC90** » 08 Jul 2015, 14:37

Re: valve spring compressors, the OHV compressors at the parts stores won't help. The c-clamp type will. What is the bore diameter of the lifters/retainers? I have a VW rabbit adapter from back in the day. I recently had to make my own for my kid's Kia motor. If the VW adapter fits, I'll send it to you.

Also, intake valves get bent worse because head diameter is larger than exhaust valves. Intakes are not sodium filled, but probably nitride (surface treatment)-don't know about N/A valves. Anybody?

2000 S70 T5 Stalled on freeway

Re: 2000 S70 T5 Stalled on freeway