Cylinder Head Replacement

Post by **cn90** » 13 Jan 2013, 07:36

Just to add to this excellent DIY, youtube channel "Robinson's Auto Repair" has 4 episodes on 1999 Volvo S70 2.4T Cylinder Head replacement. A lot of good tips:

http://www.youtube.com/user/robinsonsauto/videos

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Post by **cn90** » 13 Jan 2013, 07:48

Also,

When you have time, watch this person. This is the only guy that I will feel comfortable to work on my car.

Watch this video How I Got Started Robinsonsauto "chasing a dream":

beoutside · Post by **beoutside** » 22 Nov 2013, 12:01

Just redid the inlaws, same issue blown exhaust value, started right up but has bad exhaust leak......
The manifold was cleaned and checked, I don't think 25nm is much force and I have heard of people warming up the car and retorquing the nuts an extra few lbs to get a seal?
thanks

beoutside · Post by **beoutside** » 22 Nov 2013, 21:28

On mine the machinist asked to see the cam followers ( lifters) they found one plugged up and another with a broken spring. I had no compression in a cylinder and when I pulled the head I had one blown exhaust valve.

2008XC70 · Post by **2008XC70** » 25 Jul 2014, 21:48

Would anyone mind saying what the cost was from clearwater?

Post by **erikv11** » 26 Jul 2014, 00:03

Clearwater has a web site, www.cylinder-heads.com/

Currently $500 for an 850 head, but I'd call them if working on a turbo.

SSchilz · Post by **SSchilz** » 30 May 2015, 22:17

I have just finished replacing the head gasket on my 1997 850 non turbo. I followed Tracy's instructions and could not have tried to tackle this without them (Thanks Tracy). After completing this and starting the car I noticed excessive smoke from the tailpipe and smoke from the dipstick and the oil fill upon inspection. I completed a compression test of the cylinders and got 160#, 130#, 130#, 150# and 160#. I also did a block leakage test and that showed negative for gases coming through the coolant system. I did not replace the PVC system however I did make sure it was not plugged. Shortly before the head gasket blew I had done the glove test and had vacuum on the dipstick and the oil fill. I am not sure where to go from here. Looking for advice on this. Thanks for any feedback.

Post by **abscate** » 31 May 2015, 02:44

Put some oil in the cylinders and report wet compression. You might have worn out rings.

SSchilz · Post by **SSchilz** » 01 Jun 2015, 12:47

Thanks for the reply. I did do a wet compression test on the two cylinders that were low 130 # and it increased to almost 160 #. If the rings are worn would that cause pressure in the dipstick tube and the oil fill? I love the car but its not worth paying someone to rebuild the engine.
Thanks for your help.

Steve

Post by **precopster** » 02 Jun 2015, 07:12

Perhaps by trying to clean the PCV you actually blocked it. The 130 psi is not healthy and should be between 200 and 210 for a healthy non turbo engine. That factor alone can cause excess blow-by into the crankcase however if it wasn't there to begin with.......

The best service of a PCV is a replacement.