i am in need of new valve seals on my b16a since the machine shop messed up

the machine shop will replace them if i bring down the head but since i used new head bolts and a mugen head gasket i am hesitant to do so

i know it is possible to do on the car but how hard is it to do i know i will have to get valve spring compressor and valve seal remover...

any advice is great

 

Usually you have to put compressed air into the sparkplug hole. Just like a leakdown test.

When you compress the valve springs & take out the keepers, you have to keep the valve from falling down into the cylinder. That's what the compressed air is for. If you lose the air pressure, the valve falls down & you have to pull the head.

I don't know if you can put the piston at TDC & just let the valve fall? When it rests on the piston, maybe its too low to get the keepers back on?? There must be a reason why people don't do it this way.

 

The valve seals can hold up the valves as long as you don't push down on them. You need the compressed air if you remove the seals.

 

headbolts arent bad after one torqing. use once more again and get another head gasket. pull it off.

 

maybe some rope in the cylinder to keep the valves up?

 

anyone know of good tools or part numbers to do the seals with head on the car?

 

A good tool to pull the old ones off with are snap-on spark plug wire pullers which are pliers with rounded ends. And to reinstall the seals a 10mm 12 point 1/4" socket with extension and a small hammer works awesome.

As stated above use compressed air in the cylinders.

 

yeah this way works better than compressed air and is better for the motor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by straightline &raquo;</TD></TR><TR><TD CLASS="quote">yeah this way works better than compressed air and is better for the motor.</TD></TR></TABLE>

what way works better

i have to keep the valve from falling into the cylinder so either compressed air or rope in the cylinder...

 

I tried using a KD spark plug puller to remove the seals. It was worthless. I just took the head to NAPA and they replaced the seals for a few bucks.

If you plan on keeping the head on, you'll need a rail type-valve spring compressor. Those don't come cheap.

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Tom