All Small Six Worn valve seals vs worn valve guides.

[Rod Beauvex]

Is there a way to tell the difference? I recently discovered I've been doing my timing wrong, and while I have that fixed correctly now, it has made the oil burning problem  much worse.

I assume replacing the guides cannot be done with the head off the way the seals can.

 

[DON]

Valve stem seals ..can…be done with the head installed. Guides cannot.

 

[B RON CO]

Hi, run a compression test. If the guides are worn, the valve seats are probably also bad. If the compression test shows good #s, I would change the seals. The only real way to check the guides is to remove the valves and measure the inside diameter of the guides. A quick test, with the head off, and the valves out, is to put your finger over the guide, and pull the valve open. a good guide will suck the valve back into the head. Back in the day, it was normal to do a valve job after 100,000 miles. Good luck

 

[Rod Beauvex]

Does anyone have a recommendation for which valve spring compression tool to use?

 

[B RON CO]

Hi, KD or Gearwrench 2078 can be used with the head on or off the engine. Good luck

 

[DON]

I have found the 2078 type a little awkward to use. I have found the c clamp type easier. The head must be off though. Maybe if I used one a little more often it would be easier

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[sixtseventwo4d]

it has made the oil burning problem  much worse.

It may not be your guides, it may be rings. What is the blowby like if you pull the pcv from the valve cover? Worn guides may present a little exhaust smoke at start-up or after idle acceleration time; but don't make oil consumption as read on the dipstick remarkable.

 

[Rod Beauvex]

It may not be your guides, it may be rings. What is the blowby like if you pull the pcv from the valve cover? Worn guides may present a little exhaust smoke at start-up or after idle acceleration time; but don't make oil consumption as read on the

There is actually a little vacuum in the oil breather.

Hard acceleration makes the smell noticeable, and revving the engine makes smoke.