rebuilt head,now car has no compression...

[Mits3gts]

alright,to make a long story short... timing belt snapped,bent all the exhaust valves,i had a freshly rebuilt head laying around. it was sitting for a month or two,and came off a running car. put the head on the car,new timing belt kit,head gasket everything look really good and clean. went over everything 10 times and the car will not strat. has fuel,spark,but did a compression check and nothing.. now i had to switch cams because the head came off a n/t car,so i put the turbo cams in,but i didnt bleed the lifters and read that this may be my problem? i am thinking the the lifters wont compress and are pushing the rocker arms keeping the valves slightly open.. thanks for the input

 

[project_tsi]

Let the car sit overnight to allow the lifters to seat. If still no compression, its obvious something isn't right, Either you immediatly bent valves again, or timing is way off. Are the cam dowel pins straight up when at TDC?

 

[Mits3gts]

i have checked everything you could think of. this is not my first head job,just the only one that is giving me problems. the car has been sitting for a few months now because its too damn cold,and we cant figured out the problem. i have been thinking and reading about the lifters,because they sat for awhile filled with oil and no pressure on them,i thought they would have to be bled. i guess my theory is wrong. like i said we checked EVERYTHING over and over and over...it cranks fine,gets spark,plenty of fuel,but did a compression check and every cylinder had nothing. this head def came off a running car.

 

[92awdgsx]

Its the lifters. At least that is what it sounds like.

 

[Old Mitsu Tech]

A few years ago I bought an engine for my 92 n/t which had thrown a timing belt. I bought it thinking it was well, you know OK.

Last step was to start it. It just whined like the timing belt had been thrown and well, you know the rest.

I checked the belt. EVERY TOOTH. I checked every alignment mark. They were good.

I finally used starting fluid in the intake and it started trying to hit. Finally it started and ran rough for a few minutes till it cleared out.

That's been 3 years now and it's still going strong. I'm not saying this will work in every case, but in mine it did the job.

Just be careful and don't get your hair redone as starting fluid is very flammable.

Good Luck

 

[SolidBoostTSi]

i just ran into this problem on a GVR4, check if you're not 180 degrees out, if it's 180 out it will not have compression too. like^^^^^^^said check ever tooth. Also the marks in the middle should be used. There are two sets of mark because mitsu designed those camgears to be interchageable, Look at the top edge of the Head too that should be your reference point it should be like this O-___-O but the marks will be dead even w/ the head

solid

 

[adidas_coin]

i just ran into this problem on a GVR4, check if you're not 180 degrees out, if it's 180 out it will not have compression too. like^^^^^^^said check ever tooth. Also the marks in the middle should be used. There are two sets of mark because mitsu designed those camgears to be interchageable, Look at the top edge of the Head too that should be your reference point it should be like this O-___-O but the marks will be dead even w/ the head

solid

key pin should face up as well (both cams) not trying to be capt. obvious

 

[Newlogics]

Looks like you're savvy enough not to screw up on T-belt (being 180 off), so it's lifters. If they don't compress significantly by hand, then then need to be drained. I've been through that, and was cursing, when I had to remove vlave cover again, after I just siliconed it.

On a side note, make sure the timing plate that's sandwiched in between T-belt and b/S belt sprokets on the crank isn't flipped around. That usually has some people pull all their heir out before they figure it out.