if you can get an air fitting for the sparkplug hole, then just pressurize the cylinder, the hardest part is going to be compressing the springs and removing the keepers and then installing, the valves shouldnt fall in, if your worried about them falling, just use a screwdriver or something through the hole to hold them up while you remove the old springs and keepers. I used to work for a custom engine shop and thats what we would do, granted they were mostly big block chevy race engines.

 

screwdriver through what hole? the spark plug hole?

 

you need the air fitting to pressurize the head and they make a special spring compressor for doing the springs on the head aswell.

 

i have the spring compressor that bolt to the cam tower with the bar the goes across.,

 

just gonna use a compression tester adapter and take out the check valve.

 

Just make sure you're on compression each cylinder you're working with. Its not too hard.

 

umm the cams will be out so the valves will be closed anyway.

 

that would suck!

 

ok so the shop air will blow the piston down. i just confirmed that. i did it at bdc and everything worked great.

 

What did my post say above yours?? :smacked49 Been there and done that when it comes to anything about blowing up, repairing, or diagnosing engine shit.

 

just pull the plug and stick a screwdrive in the hole have someone bump the starter

I doubt that would work on a cylinder head that has the plug holes going straight down with the valves....and thats also a good way to fuck things up. You never stick metal objects into a cylinder and bump it over. Use a pencil or something soft.


And to the OP, glad everything worked out for you and you didnt have to pull the head again.

 

Take a straw and 30ft of yarn, drop the cylinder to bdc. Feed the yarn in the cyl the bring the piston back up. ....... it may work... Thats how we unbend valves when were at events and cant swap or pull a head.

 

you "unbend" valves with a straw and yarn?:rotflmao:rotflmao:rotflmao

 

ok, this is a good thread because i may have to change out my valve steam seals.

-preforming this job on ALL cylinders would require you to reinstall everything.. spin the motor to bdc one more time for the other two cylinders and pulling it apart again.. right.. (only way to keep it in time correct?) cant think of any other way...'

they make a tool thats like a Big deep socket with a strong magnet inside, u place it over the retainer and hit with a hammer nice a firm compressing the spring but the valves releases and the retainer is left magnetized to the tool.

 

they make a tool thats like a Big deep socket with a strong magnet inside, u place it over the retainer and hit with a hammer nice a firm compressing the spring but the valves releases and the retainer is left magnetized to the tool.

Sounds like you would end up with valve springs and a magnetic socket whizzing past your head....:eek4:

 

if you accidently push on the valve to hard it will break the seal of air and fall in.

 

i want to know about this unbending of valves McGyver style.

 

Sounds like a good but time consuming way to keep the valves up without air when removing springs or valve stem seals.. If it isnt a flat rate job, i would sure would try the yarn way.

 

^yea sounds iffy.

 

Where is the love?

 

its exactly what happened to my head, the cams werent in time and just the starter alone broke two exhaust valve, it never even fired up. I thought they were bent but they were broke, and they even gouged into the head, and spilled that sodium stuff into the cylinder, it was a mess...

 

this thread is getting hostile.

 

XD This is getting good. I am no mechanic but McGuyver rocks and if there is any way to atleast temporarily fix a problem when stranded on the side of the road, I would try it.

 

on the off chance that you just got some fast food, and have en extra dry straw, AND your grandma left her knitting stuff in the backseat of your car..:rotflmao

 

to the original poster i have that snap on kit that the other guy posted with the bar and lever set up, use compressed air and piston at BDC and your fine

and that yarn trick that your talking about, ive actually seen that done before also (i have a lot of ******** around here with dirt cars) and its worked for them.

 

exactly...
the minute something ******* comes near my car is the minute that i died, and it got sold. :greddy:

 

i dont think the word ******* and sr20 mix very well.

 

good thing i dont have/never will have an SR. lol