Bent valves? or Droped a valve, Pictures inside!
 

So hey guys yesterday i was driveing my 1999 gst eclipse, just a 16g,fmic, 3inch exhaust. I turned a corner went to shift into second and it just died? Was running fine all day. Towed it home and pulled timeing cover and valve cover timeing was on, But ALL the rollers for the cam and spring were off on the exhaust side! They were just laying in the head! the intake side of the cams was perfect everything was good? Tryed putting rollers back on and only 3 of the 8 stayed on when i re did them and tighted down cam? what do you guys think happened? thanks hope i uploaded pics okay

Re: Bent valves? or Droped a valve, Pictures inside!
 

Yes the belt may be in 1 piece, but I bet the timing marks will not line up. I would guess the balance shaft belt let the ghost out or the auto tensioner failed. If you turn the motor over my hand and look at the cam gears with both pins up and the timing marks pointing at each other in the middle of the cam gears you can look down at the crank pulley and the timing marks should line up with 0 on the front cover.

~John

Re: Bent valves? or Droped a valve, Pictures inside!
 

I had the teeth on the timing belt on my 90 laser sheer off on the crank gear. You could crank the motor over by hand but the cam gears would not move. But when I took off my Valve cover it looked just like that.

So its at least some timing belt or tensior failure.

Re: Bent valves? or Droped a valve, Pictures inside!
 

I think you hit it dead on, before i pulled valve cover i tryed turning it over compression was 0 and seen strings in the timeing cover, so if i redo the timeing and "say" my head is good, hould i be able to salvage the block even tho balance shaft belt broke?

Re: Bent valves? or Droped a valve, Pictures inside!
 

Yea i think both Timeing belt and balance shaft, thanks for the info guys

Re: Bent valves? or Droped a valve, Pictures inside!
 

Yes the short block will be ok with a timing belt skipping or breaking. The pistons will have some marks but you just need to rebuild the head, or buy a used one and bolt it back together.

~John

Re: Bent valves? or Droped a valve, Pictures inside!
 

okay cool i think i'm going to pull the head today or wensday, i'll post some pics. What should i do for a head gasket and studs? kinda off topic but i have a 16g and wanna run e85 and go around 350

Re: Bent valves? or Droped a valve, Pictures inside!
 

A question of the ages. Many people say OEM is the way to go, some say MLS. I liked MLS myself, but have used OEM before.
Studs, get ARP L19s.
Just make sure you do your research prior to going down the hp goal road. While some guys make it look easy, it takes time, effort and Money. You cant spell Research without SEARCH. Search the site as there are many builds out there people have had great success with, that would get you around your goal.

Re: Bent valves? or Droped a valve, Pictures inside!
 

Ok thanks, what should i do about the balance shaft? Is it that hard to delete them while motor is in car or should i pull it to pop those bearings out. My buddy has a 6 bolt that crank walked and it has the elimination kit on it. Could i use his kit or should i buy a new one?

Re: Bent valves? or Droped a valve, Pictures inside!
 

All right head off! EVERY VALVE BENT! 6 BOLT TIME ! lol or should i get a head and say fuck it?

Re: Bent valves? or Droped a valve, Pictures inside!
 

Soo more pics?

Re: Bent valves? or Droped a valve, Pictures inside!
 

The head doesn't look damaged at all... If it isn't damaged, why replace it? Obviously have it gone through and new valves, etc though.


EDIT: Did Tom own this at some point? who the fuck else globs orange RTV all over stuff like that? :lol:

Re: Bent valves? or Droped a valve, Pictures inside!
 

Fix the valves and let 'er buck.

Re: Bent valves? or Droped a valve, Pictures inside!
 

Yea but for as much as it is to have it gone though i can get a new 7 bolt head from a buddy for 100, and put my cams and intake mani on and go, Do you think the pistons are to bad damaged? will it lower my compression at all? or even run right? thanks

Re: Bent valves? or Droped a valve, Pictures inside!
 

LMFAO i was going to say the same thing. hahaha
Orange RTV FTMFW!

Edit: does that look really odd to anyone else where the head meets the mani, almost like he stuck a 2g intake manifold on a 1g head? Looks like its dangerously close to a VERY large leak.

Re: Bent valves? or Droped a valve, Pictures inside!
 

lol yea idk i got it and it needed a flywheel/clutch, did that 2 months later this. So should i put the 200-300 into it for a new headgasket arps and gaskets,even though the pistons have a little valve marks where they hit, or just grab a 6 bolt? even tho im low on funds.

Re: Bent valves? or Droped a valve, Pictures inside!
 

The little marks on the pistons are fine. You can clean them up a little and run it. My Laser had some pretty good marks on the pistons and I just cleaned them up, put new head on and ran it. No need to swap out the motor if everything else is fine.

Re: Bent valves? or Droped a valve, Pictures inside!
 

yea i think im still goint to pull the moter i read its pretty hard to do the balance elmation kit while the motor is still in.

Re: Bent valves? or Droped a valve, Pictures inside!
 

I did it on my first vr4 with the motor in, but it was a pain in the ass. So its possible, but better to do with motor out.

Re: Bent valves? or Droped a valve, Pictures inside!
 

Use a dremel and smooth out the knicks in your pistons. I made over 550 awhp with stock cast pistons with knicks on them.

If you spend $100 to get that "new" head from your friend, who is to say the valves aren't slightly bent in that, or it has shitty valve stem seals (which will cause your car to smoke and use oil),

If money is an issue for you right now...
Buy your friend's hopefully good head.
Get a stock headgasket, use "Copper Spray" on it (you can get it at any autoparts store: it helps the new headgasket seal better).
And get standard ARP headstuds.

If you can spend a bit:
Bring your head to a machine shop, get it repaired RIGHT.
Buy a stock headgasket OR a fancy one (IE $250 Felpro Permatorque)
Buy standard ARPs or fancy studs (IE $200 ARP L19/ MAP H11)