timing chain

[bluerunner]

i have a 1988 forerunner with the 22-re engine,
i just had the head done, and now im trying to put the timing chain and gear onto the cam and i cant get it to reach the cam, the chain is on the crank on the bottom. any ideas ?
thanks

 

[Jeff Kleb]

Timing Chain


Is it actually a chain -- or just a timing belt? Many imported vehicles, and a few domestic ones, were built with nylon belts rather than chains. While they do need periodic replacement, they are quieter and allow the engine to run more smoothly.

Seeing that yours is an '88, I would be that it is a belt. But then again, I sure am no expert on Toyotas.

:awais: :artist:

 

[beeper]

I don't know that engine but it sounds like you need to remove the gear on the camshaft put the chain on that gear and also the crank gear then put the gear back on the camshaft. You also have to alighn the timing marks on the crank and camshaft. This is the standard way to install timing chain on most engines. Hopefully you will install new gears to go with that chain. The old one's have taken a set with the old chain Just my 2c worth...hope it helps.

 

[bluerunner]

thanks

 

[02SE]

Re: Timing Chain

Is it actually a chain -- or just a timing belt? Many imported vehicles, and a few domestic ones, were built with nylon belts rather than chains. While they do need periodic replacement, they are quieter and allow the engine to run more smoothly.

Seeing that yours is an '88, I would be that it is a belt. But then again, I sure am no expert on Toyotas.

:awais: :artist:

The 22RE has a timing chain.

So does your 4.0 V6 for that matter. :

 

[rustyrazor]

22re timing chain

I know this is an old thread but here's a picture of my 22re engine w/ timing chain exposed.

 

[Mr. Lambdebois]

I miss my timing chains......

Wish you were closer and I'd come help put it back togethor....

 

[Jeff Kleb]

Just what kind of engine is that? It appears to be some sort of DOHC V-6.

 

[Mr. Lambdebois]

That specifically is a 2003 Ford 4v 4.6L dohc V-8 out of a supercharged cobra.

Cast Iron Block, forged crankshaft, forged pistons, Manly forged H-Beam Rods, ARP rod bolts and high strength wrist pin bushing, sealed power rings with napier second ring. 112 cu in roots type positive displacement pump (supercharger).
8.5-1 compression ratio

 

[Jeff Kleb]

Ah, so it is a V8 after all. When I first looked at it, I assumed it was a V8 but looked again and thought it was not "long" enough to be an 8-cylinder.

But anyway, why is it all torn down? It looks new.

 

[Jeff Kleb]

Oh, I wonder if it would fit into the engine bay of the 4Runner. Now that would be one sweet ride.
:awais:

 

[Mr. Lambdebois]

It was receiving a new cylinder head with updated valve guides, exhaust ports and coolant passages. Nothing happened to my first head even though I had seen others with a valve guide problem. When Ford release an updated head I knew I wanted it and took advantage as a ford mechanic to get it.

 

[rustyrazor]

Here's me getting all the old gasket and RTV sealer off of the engine block. Very tedious.

Everything went back together perfectly.

Here's my theory about what happened:

Early last week the 4runner started to leak alot of oil from the timing cover so I went out and bought the gasket kit and ordered a timing kit.

Once I got the timing cover off (no small task) I noticed that the drivers side guide was broken and that there were two grooves on the inside of the cover where the chain was slapping it. This must have been what caused the gasket to give up and leak oil. My next question was "why did the guide break?" and I found out when I pulled out the tensioner.

The tensioner on these engines are spring loaded but most of the tension is from the oil pressure. There is a small port behind the tensioner that leads to a small hole, not much bigger than a grease nipple, in the tensioner. The port behind the tensioner was filled with sludge so I cleaned it out and used some silicon lube in a can with the little plastic stick/tube so that I could get it way in there.