derae1

I have on broken valve spring on cyl 5. Compression test reads 0 and the cylinder next to reads 30psi. The car only has 70k on it. What should I do?

87_Crown_Vic

there are special tools need to fix your problem... you have to be able to remove valve cover to fix this... since you will be removing the valve cover i recommend the fel-pro perma dry gaskets instead of cork. the tool you will need is on that releases the retaining clip that holds the spring. if doing this, i recommend doing all the springs on your cylinder heads since if one failed another might fail. if you have to, a shop might be more capable of doing the repair.

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my 1986 Grand Marquis LS... Rose...

Bert

Replace the broken spring. We've done them in the past and the cars went on for many many miles. Just don't run the engine until it's fixed or it can drop a valve and then you'll need an engine rebuild.

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Bert

derae1

I'll try to post pics of the broken spring tonight. Is there anything else I need look out for? Will that broken spring on that cylinder affect the one next to it?

derae1

Good news! Valve spring has been replaced and the compression is between 140 - 150. Once I put her back together, I'll let you all know how she runs! Thanks

Bert

That is good news. Thanks for the update.

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Bert