Replacing valve guides

[03knight]

Can anyone give me the best way to replace a valve guide. Will the head need to be removed? Or can it stay on engine?

[slickster]

......... Oops thought you meant timing guides

[Zack]

LOL!!!! Yes the heads will need to be off and completely disassembled

[lifespeed]

Can anyone give me the best way to replace a valve guide. Will the head need to be removed? Or can it stay on engine?

You don't just replace one valve guide, you rebuild the cylinder heads, replace all the guides, springs, valve stems seals and any (or all) valves that look suspect and do a valve job. Replace the hydraulic lash adjusters too. And you may as well do the plastic timing chain tensioners while you're in there, or the whole cam timing kit for a mere $475. ;)

And you do this only if you are confident in the condition of the bottom end of the engine, otherwise it is a lot of wasted effort and money.

If you have 150K miles or more on the engine, you should seriously consider a complete engine rebuild. One should be a little careful about dumping a lot of money in an old engine. They are kind of hit and miss as to longevity. Some make it past 200K miles, others croak in the low 100K mile range.

[chief455]

Can anyone give me the best way to replace a valve guide. Will the head need to be removed? Or can it stay on engine?
Do you perhaps mean the valve seal?

[J-MAN]

Just who diagnosed valve guide replacement?

[tbone]

You don't just replace one valve guide, you rebuild the cylinder heads, replace all the guides, springs, valve stems seals and any (or all) valves that look suspect and do a valve job. Replace the hydraulic lash adjusters too. And you may as well do the plastic timing chain tensioners while you're in there, or the whole cam timing kit for a mere $475. ;)

And you do this only if you are confident in the condition of the bottom end of the engine, otherwise it is a lot of wasted effort and money.

If you have 150K miles or more on the engine, you should seriously consider a complete engine rebuild. One should be a little careful about dumping a lot of money in an old engine. They are kind of hit and miss as to longevity. Some make it past 200K miles, others croak in the low 100K mile range.

I have 150k on mine and it in no way needs a rebuild. Except of course for the valve guide seals leaking a bit.

[lifespeed]

I have 150k on mine and it in no way needs a rebuild. Except of course for the valve guide seals leaking a bit.

Mine didn't need a rebuild at 138K miles. Then at 139K it spun a bearing. Like I said, some make it past 200K, some don't. Hope yours lasts a long time.

[03knight]

It was just a thought before I spend money on a set of new heads. and the only reason I diagnosed a valve guide replacement is because I have a bad ticking that is coming from the valves #7 and #8

[FordNut]

valve seat is more likely than valve guide

[Turbov6Bryan]

It was just a thought before I spend money on a set of new heads. and the only reason I diagnosed a valve guide replacement is because I have a bad ticking that is coming from the valves #7 and #8

You would have more money in your pocket if you repaired your existing heads vs buying a new set of heads. If you buy used heads they could be worse than the ones on the car

[tbone]

Mine didn't need a rebuild at 138K miles. Then at 139K it spun a bearing. Like I said, some make it past 200K, some don't. Hope yours lasts a long time.

Whoever owned it before me must have been just as anal or more than me. When I tore it down at 145k to supercharge, it was spotless. Spinning a bearing can happen on a new car, old car, whatever. I'm betting I won't have that issue. And if I do, I have plans. Oh yeah. Big plans. :burnout: