engine reassembly woes, help ASAP

[hvguy]

omg, so I managed to replace the head gaskets on my personal 98 4runner, managed to get the exhaust cams in backwards, then forgot to tension the cam gear, none the less, I got it all running again and back to where it was.

So my buddy comes across a 97 4runner with 260k on everything, guy says it needs a headgasket, easy, so my buddy bought it and I proceeded to tear it apart....
Got it apart, replaced the gasket, put it back together and managed to put the exhaust cams in backwards again lol, what an idiot. so I took it apart again, swapped em, forgot to take out the service bolt "it sheared off and fell in the oil pan" so it took it apart, pulled the remaining bolt out, reassembled it, started to crank... no fire, sounded kinda weird when cranking too, so I put my hand over the intake... no suction... actually it was pushing air.. wtf.

so I pulled off the timing belt, checked the timing, and I think I lined it up with the timing mark for the block, not the belt. goddamn im stupid. so I put it all back together and now when I crank it, it sounds like the spark plugs are out lol, wtf.

I swear I will never tear one of these apart again X_X


any ideas? im thinking I might have gotten the cams for the L and R backwards... is there a difference in the 2?

im really needing some help here. im about to take the top end apart AGAIN for the 4th time? just so I can check everything.... if you think you can help

text or voice 713-459-0269

 

[hvguy]

got it all apart and I dont see any markings for L and R crap :violin:

 

[JohnsD90]

At 262k miles, please just get a low milage engine.

 

[hvguy]

At 262k miles, please just get a low milage engine.

that costs money; something I have VERY little of... and im sure its got another 200k left in it =) lets be optimistic



after close observation, im an idiot for asking if I could get the cams on the wrong side lol, the gears location prevents that.

and the way I have the timing marks is the 2 dots are lined up with the 1 dot... my hanes manual says to face the 2 dots toward the exhaust side... then it says to line up the dots as shown in figure 10.3..... wtf, and the picture isnt very detailed... looks like the way I have it... but when im turning the engine over, the piston comes down for the intake stroke and the intake valve opens... gets to BDC then the exhaust valve opens lol... i think the book is wrong.


err. im gonna go out on a limb and reverse the exhaust cam then see what happens X_x:ak472:

 

[drmorbius]

omg, so I managed to replace the head gaskets on my personal 98 4runner, managed to get the exhaust cams in backwards, then forgot to tension the cam gear, none the less, I got it all running again and back to where it was.

So my buddy comes across a 97 4runner with 260k on everything, guy says it needs a headgasket, easy, so my buddy bought it and I proceeded to tear it apart....
Got it apart, replaced the gasket, put it back together and managed to put the exhaust cams in backwards again lol, what an idiot. so I took it apart again, swapped em, forgot to take out the service bolt "it sheared off and fell in the oil pan" so it took it apart, pulled the remaining bolt out, reassembled it, started to crank... no fire, sounded kinda weird when cranking too, so I put my hand over the intake... no suction... actually it was pushing air.. wtf.

so I pulled off the timing belt, checked the timing, and I think I lined it up with the timing mark for the block, not the belt. goddamn im stupid. so I put it all back together and now when I crank it, it sounds like the spark plugs are out lol, wtf.

I swear I will never tear one of these apart again X_X


any ideas? im thinking I might have gotten the cams for the L and R backwards... is there a difference in the 2?

im really needing some help here. im about to take the top end apart AGAIN for the 4th time? just so I can check everything.... if you think you can help

text or voice 713-459-0269

According to this diagram there is a left exhaust and intake cam pair and a right exhaust and intake cam pair. You might want to ask Toyota how to identify the drivers side and the passenger side cams

http://www.trademotion.com/schematics/mechanical/F809084.gif

 

[hvguy]

According to this diagram there is a left exhaust and intake cam pair and a right exhaust and intake cam pair. You might want to ask Toyota how to identify the drivers side and the passenger side cams

http://www.trademotion.com/schematics/mechanical/F809084.gif

yep, the gears are placed in different locations and there different cutouts in the head... so even if you try to put the L in the R spot, the gears wont let it seat correctly

 

[hvguy]

well, I figured out that when I went to put on the new timing belt.... I aligned it with the dot on the back of the gear... which it actually to be verticle and there is a seperate dot on the front of the gear for the timing belt..... and I had reversed the gears prior to noticing this......

so I actually had the gears in correctly, but reversed them, when it was actually the timing belt's fault...

ATTENTION!!!:

the hanes manual is WRONG! lol, for real...

When aligning the cam gears,
Align the 2 dots together for the right bank
Align the 1 dots together for the left bank

It never says anything about the left bank being different.... lol, and in the illustration, its so low quality, you cant tell if its 2 or 1 dots... I can clearly see 2 dots on the right gear, but the left gear is jumbled up and it looks like 1 dot...

The manual only states:

[intake camshaft installation]
Set the intake camshaft in place in the right cylinder head with the timing marks (two dots) facing the exhaust camshaft side of the head (see illustration)

[Exhaust Camshaft Installation]
Set the exhaust camshaft in place in the right cylinder head with the timing marks (two dots) aligned with the intake camshaft timing marks

After that, it says the remainder of the installation is the reverse of removal.

 

[drmorbius]

well, I figured out that when I went to put on the new timing belt.... I aligned it with the dot on the back of the gear... which it actually to be verticle and there is a seperate dot on the front of the gear for the timing belt..... and I had reversed the gears prior to noticing this......

so I actually had the gears in correctly, but reversed them, when it was actually the timing belt's fault...

ATTENTION!!!:

the hanes manual is WRONG! lol, for real...

When aligning the cam gears,
Align the 2 dots together for the right bank
Align the 1 dots together for the left bank

It never says anything about the left bank being different.... lol, and in the illustration, its so low quality, you cant tell if its 2 or 1 dots... I can clearly see 2 dots on the right gear, but the left gear is jumbled up and it looks like 1 dot...

The manual only states:

It sounds like you're lucky it's a non interference engine.:frisky::shrug:

 

[hvguy]

well... it appears that I got it all together , it runs, and drives... but its missing X_X

thankfully I drove it enough with it running poorly for it to throw a code... ill check it tmrw

 

[hvguy]

while headed to vato` zone, the check engine light was blinking on accel lol, it seemed very unhappy to be driving.

The scan says misfire on cyl 2 and 3...

then I thought to myself... those intake gaskets I put on looked kinda... uh, no in very good shape..

so im gonna buy some new ones in hope that its only the manifold thats leaking causing a whole gang of misfires.:sobbing:

 

[004Gunner]

Just reading through this whole thread tells me that your engine's chances of going another 200k miles are pretty much none existant. If it's still missing with the flashing CEL then your timing is still off. That flashing of the CEL means your cat is getting ruined from the excess fuel dumping into the exhaust. Ditch the Haynes and at least get a Chilton, then review this to get the timing right. Good Luck!

 

[hvguy]

Just reading through this whole thread tells me that your engine's chances of going another 200k miles are pretty much none existant. If it's still missing with the flashing CEL then your timing is still off. That flashing of the CEL means your cat is getting ruined from the excess fuel dumping into the exhaust. Ditch the Haynes and at least get a Chilton, then review this to get the timing right. Good Luck!

thankfully theres no cat, and the timing is spot on.. guaranteed perfect timing.

I had a 92 toyota paseo that I turbo'd with the stock ecu... sadly enough the ecu could only handle 5psi till fuel cut... and when it cuts the fuel, it flashes the CEL...." youtube vids of the car " if its whatsoever relevant.. I think its trying to say "dude, the same code is constantly coming up, get somewhere fast":violin:

 

[hvguy]

ok, so theres a suggested misfire on cylinders 2 and 3.... L and R bank... so I got the new gaskets from toyota :15$ each, replaced em, and it still misfired but not as bad.... so I pull the wire from cylinder 2 while the cars running and it starts to misfire really hard... plugged it back in, went to cylinder 3, removed the 10mm bolt, hooked on an aligator clip for ground, started it up and pulled the pack while it was running... X_X nothing happened,

so now I know its only cylinder #3 thats ****ed. I checked the injector connector, all good.. I pulled plug #3, poked it into the coil pack, attached a ground, started it up; low and behold, the sparkplug no sparky.

I run out to my 4runner, pull plug #2 "easiest to get to" put it in cylinder #2, put it all back together "mostly just the MAF" fired it up, now it runs like it should :bluejump:

headed to toyota now to pickup a 6pack of NGK's

 

[hvguy]

now that its running, it idled high enough to make baby jesus cry.

I figured it was the IAC, so I pulled the IAC off the bottom of the TB, tested it, and nothing happened X_X

cleaned it with some starter fluid, worked the little IAC door back and forth a few times, washed it out with some more cleaner, wala! it was back to IAC'ing once again.


He's all happy now, im happy to have learned a few things here and there.:flamethrwoer2:

 

[toytech76]

If in the future you dont want to worry about aligning dots on the cams, before you remove the cams, clean them off with some brake kleen then use some white out to draw a line across the 2 gears. That way you can just align your mark from the front instead of dots in the rear. Thankfully these engines are super simple to work on. You should be an expert now! lol

 

[hvguy]

If in the future you dont want to worry about aligning dots on the cams, before you remove the cams, clean them off with some brake kleen then use some white out to draw a line across the 2 gears. That way you can just align your mark from the front instead of dots in the rear. Thankfully these engines are super simple to work on. You should be an expert now! lol

lol, unfortunately there was already marks on the cams from toyota i believe... or who ever was in the engine last... but I didnt notice them until the second time :gun4:

but yeh, super simple engine,

ive got a 3sgte that I got in pieces, its all been machined and just needs re-assembly.... we'll see how that goes, hopefully its non-interference:naughty:

 

[shawnstcyr]

If in the future you dont want to worry about aligning dots on the cams, before you remove the cams, clean them off with some brake kleen then use some white out to draw a line across the 2 gears. That way you can just align your mark from the front instead of dots in the rear. Thankfully these engines are super simple to work on. You should be an expert now! lol

I was going to suggest the same thing.