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Camshaft R&R checklist 700 1990

posted by  rstarkie on  Fri Feb 22 01:30 CST 2008
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last visit: Fri Oct 24 10:14 CST 2014
[RELATED]

I wish there were a way to replace the valve seals without removing the head, because I am sure they are brittle, too. If I could replace them, then the head would have all new rubber.

It can be done. Camshaft removed. You rotate the crankshaft until the cylinder is at TDC (valves closed). There is a device that screws into the sparkplug hole and accepts an air chuck. Apply air to force the valves to remain closed.

Now the hard part. Find the tool that will compress the valve spring so as to remove the keepers and release the tension. Remove the spring and replace the seal (there are only four to do the exhaust valves do not have seals).

These tools are available but you need to find one that will work on the Volvo. Within the last year a person with a broken Volvo valve spring reported his success at fabricating a tool and replacing the spring.

Randy





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