1990 Eclipse DOHC needs valve job

It's not too tough. Go here for intructions on many repair operations

The standard valve spring tools will not work. You can buy the factory tool or a home made version found on Ebay. It may be more cost effective to buy a used-good condition head. I've picked them up complete and ready to install for as little as $75.00 but $200 is more common. There are quite a few heads on Ebay right now that are cheap. Follow the timing belt instructions on vfaq.com carefully. 20,000 isn't too good! On older cars the idler, tensioner or balance shaft belt can all be prime contributors in early T-belt failures; inspect this stuff carefully and think hard before reusing these items.

If the valves are bent, you will have to pull the head. The head isn't hard to do. AllData calls for 8 hrs of labor. That's for a shop with power tools and is always twice what it really is. Figure that for someone doing it themself. It's an old car, however, and I'm betting on some broken bolts (especially on the manifold).

You will need to get the upper engine gasket kit from Mitsu or a vender. Those will have everything you need, including the stem seals. Add a timing belt, tensioner, valves, and new head bolts. Machine work is around 150 if you supply the parts.

Thanks, NUK. Which shop manual would you say is best for something like this?

The head isn't hard

with power tools

someone doing it

some broken bolts

Mitsu or a vender.

seals. Add a timing

is around 150 if

and denounce the

to danger. It works

Nuremberg Diary by G.

valves.

mechanic

a

at

Factory....Haynes is a distant second. Chilton's is a waste of paper. I've go it all on CD but I don't know where to send your copy.....

Just been through this with my turbo. You've bent the inlet valves, up to 8. You may also have cracked the ends off the valve guides too. Exhaust valve guides are likely worn by now. These can be replaced or a machine shop can fit inserts.

I'd advise taking the head to a machine shop. My head was reconned and assembled with the valves, seals, springs, lifters and cams, ready to drop on the block, for around C$700.

You can check the hydraulic tensioner once its out by seeing if you can depress it against your bench. If it needs a G clamp or a vice to compress it, its OK.

Most common causes of premature belt failure is oil or water contamination. Since this is a 1990 engine, I'd also advise taking it out and putting in new rings (bet it need oil rings by now), front and rear main seals and new bearings if they need it. Otherwise, putting the reconned head back on is a waste of money. You most likely won't need to bore the block: 4G63's are pretty robust, and usually its just the rings (and valve stem seals) that cause the high oil consumption.

Stewart DIBBS

Thanks for the info, Simpleton! And thanks for that great site!!!!!!

repair operations

work. You can buy the

head. I've

as $75.00 but

right now that are

20,000 isn't too

belt can all be

stuff carefully

valves.

mechanic

a

at

Many thanks, Stewart.

valves.

inlet valves, up to 8.

too. Exhaust valve

machine shop can

reconned and

cams, ready to drop

seeing if you can

vice to compress

water contamination.

and putting in

main seals and new

head back on is a

block: 4G63's are

stem seals) that

Thanks, for the offer, Simpleton! I just tried to send you an email but it bounced. Send me your real email address to snipped-for-privacy@hotREMOVETHISmail.com and I'll send you back my mailing address.

waste of paper.

copy.....

for

shop

work

country

to

do