no compression after cam install

[redline6k]

I just instaled hks 264/272 cams in my 92 talon and I go to start car sounds like its got no compression. I compression tested the car and I have no compression across the board. I checked the timing and its perfect. I noticed that when the cylinder is at tdc the cam is still keeping the valves open a little bit. I put my old cams back in and the car runs fine. The only thing I can think of is that I should just take the cams off and leave them of for 3 hours like suggested.
Has anyone ran into this kinda problem? Any help would be greatly appreciated.

Thanks
Ralph

 

[bob123131]

This will sound really dumb, but on another forum there was a kid who switched his exhaust and intake cam and his car wouldnt even turn over, but not sure if that was due to no compression or valves hitting pistons. Are you sure you had your plug wires right?

 

[redline6k]

This will sound really dumb, but on another forum there was a kid who switched his exhaust and intake cam and his car wouldnt even turn over, but not sure if that was due to no compression or valves hitting pistons. Are you sure you had your plug wires right?

The plugs are on right that's not the problem the problem is I do not get any compression once I put these cams in and when I put the stock cams back in the car fires right up so I know there's either something wrong with the cams or I'm overlooking something

 

[kidderkennels]

hhmmm wierd...did you ever figure this out...my buddy is having the same problem?

 

[SBR Joe]

This happens every once and a while, its happned to me twice. The lifters go flat. Just keep cranking the car over and let them pump back up. I let mine sit for like 20 min and came back out and it had compression again. Its weird but as long as you didnt have the timing way off and bend the valves, thats whats going on.



Joe
SBR

 

[1992awdlaser]

Bleed the lifters.

http://www.dsmtuners.com/forums/newbie-forum/318768-resolved-replaced-cam-now-valves-stay-open.html

 

[92awddsm]

Bleed the lifters.

http://www.dsmtuners.com/forums/newbie-forum/318768-resolved-replaced-cam-now-valves-stay-open.html

Agreed. That should be on faq.