92 camry 4cyl. blown head gasket ..need help

[240mph]

ok i have a 1992 camry 4 cyl 5sfe and i have a blown headgasket i took apart the head already problem is when i put it all back together i dont see the timing marks on the camshaft timing gear this is my first time working on this motor. how do i know if everything is correctly aligned and what camshaft do i put in first .and i still dont get why you have to stick a bolt through the sub gear in the exhaust cam i just stuck a long screwdriver through it. is the toyota head gasket good to use or should i use another brand..thanks in advance

[88 LE]

Originally Posted by 240mph

i dont see the timing marks on the camshaft timing gear this is my first time working on this motor.

Look again, theres marks on the gears.



http://www.autozone.com/servlet/UiBr...3d8013e6a5.jsp

how do i know if everything is correctly aligned and what camshaft do i put in first.

Maybe you should of thought about that before you took the motor apart.

Anyways the intake cam goes in first.


You might want to read this too:

http://yotarepair.com/5S-FEtimingbelt.html

and i still dont get why you have to stick a bolt through the sub gear in the exhaust cam i just stuck a long screwdriver through it.

The bolt is just for insurance. The main gear and sub gear are pinned together anyways.

is the toyota head gasket good to use or should i use another brand..

Toyota headgasket is fine.

Make sure you get new headbolts and replace whatever seals/gaskets you remove.

[240mph]

why what if i dont get new head bolts . i took it apart because i know i can do it. just need some advice here and their thats about it. but thanks for the reply

[88 LE]

Originally Posted by 240mph

why what if i dont get new head bolts.

You want new head bolts.

When you tighten/torque down a bolt, it stretches. The bolt goes into a elastic zone.

If a bolt is over tightened/torqued, it goes past the elastic zone and the bolt is ruined. Not enough torque and you don't get the maximum strength of the bolt.

The idea behind torquing is to yield the maximum strength of the bolt.


So replace those damn head bolts.


http://www.arp-bolts.com/pages/tech/fastener.html

[240mph]

well here on guam they dont have jack sh*t not even in toyota. got special order. so im just gonna utilize the same old bolts it should hold.

[jORGE]

On my 94 Camry 4 cyl Gee guys I am working on the same project. You just answered my question. I was running thru lot to figure those hidden marks.
It did work.
Thanks.
OOPS, leaking coolant....from the front end; can not see.
Got to to the whole thing again I suppose. I replaced all gaskets,seals, new head bolts, etc. torqued everything by the book. Something is making an awfull clicking sound.
Is it possible that the timing belt went in too tight ?
Please advise on any possible procedures.
Does anyone know were to disconnect the wiring harness ? Gets in the way to remove the intake manifold and head together.
Thanks again.

[88 LE]

Originally Posted by jORGE

Something is making an awfull clicking sound. Is it possible that the timing belt went in too tight ?

No, the tensioner + tensioner spring sets the tension on the timing belt. So theres no way it can be to tight.

Did you remove the lifter buckets from the head? If so I hope you didn't get them mixed up, otherwise you have to check and adjust valve lash.

Does anyone know were to disconnect the wiring harness ? Gets in the way to remove the intake manifold and head together.

Disconnect it from the ECU and pull it through the hole in the firewall.

The ECU is behind the glovebox.

Theres 2 nuts or bolts holding the wiring harness to the firewall. Its on the left side of the engine bay.

[jORGE]

Thanks for replying on the timing belt and harness issues.
About the buckets, yes they were removed and marked accordingly.
The one thing I did was remove the hardened carbon around the valve seats and replaced valve seals.
Checked the oil and does not look milky or contaminated.Is it possible the oil pump is dead ?
There is a lot of air pumped out when the oil filler cap is removed .Is it normal?
I do have a coolant leak on intake side by cyl #1 however.
Warped head ?

[jORGE]

For what is worth,
I solved the problem of th cliking sound under the valve cover. The torque setting of the camshaft bearings screws was low. Also the subgear and gear on the exhaust shaft were not aligned, therefore there was not spring load for zero backlash between intake and exhaust camshafts.
The other bolt they are talking about is to serve as a pivot point so you can turn the subgear with an screwdriver so you can place the service screw and preload the gears before you place the camshaft in the bearing seats.

[93 Camry LE V6]

Are these cars prone to head gasket failures? I have never heard too much about the 4-cylinder blowing a head gasket. I am pretty sure that the 3.0L V6 is well known for it though.

[ag6286]

many toyotas have weak head gaskets....seems to come w/the territory from what ive seen and heard....weak head gaskets stretch from corollas up to Supra MkIII's, given there not all bad, they can handle stock power easily but they can gain wear and tear easily, and once power is increased the life of them probably decreases exponentially. If you plan on giving ur car some boost, especially the v-6s (i hear alot of these head gaskets blow sumwhat easily) plan on upgrading ur head gaskets first

[93 Camry LE V6]

Thanks. I know that the 1991-1995 Acura Legends with the 3.2L V6 are very well known for blown headgaskets. That was one reason I was so anxious to get rid of mine. It was still OK, even at 200K, but I have heard of these going bad on the Legends with miles as low as 110K. Folks on the Acura forums say it was something with the way the cooling system was designed (poorly) along with weak gaskets to start with.

[jORGE]

90 camry le v6 with 237,000k
My son's car never had one head gaket replaced, although the transmission always had a clunky sound when going ftom park, neutral to gear.
Had transmission replaced about 2 years ago. Need to do some clean up on the sensors attached to carburator and manifold. He just hold the car with the brakes from now. I believe the timing screw is very sensitive to changes. Have to check that too. Anything else ?
My daughter's 94 camry LE 4 cyl has the time belt tensioner running very hot; can these be repacked ?
Oh the water pump is terribly hard to replace without getting the crankshaft pulley out.
How do you hold the crank from turning while engine is in the car?

[fredk]

I use my chain wrench wrapped around the pulley when i cant get my impact to the bolt

[jORGE]

Thanks for the tip. Have to get one of those.
On the Camry 94 LE 4 cyl
I noticed while working the head gasket that the #1 cylinder bore was kinda worn out on one side like an step about 1/32 I suspect crank bearings may be gone..
Is it difficult to replace these ?
Car vibrates rough when going into first gear or reverse.