4x4funnerguy

so i recently purchased a 1994 4 runner sr5 V6 5seep 4x4. ( besides the r-22 i heard this was the next best to buy) and the person told me that it had a minor exhaust leak. i drove it home ( 52 miles up and down hills in california) and started to check it out. i have replaced the exhaust gasket on the drivers side hoping that would fix it... but no... so i went on to check out the exhaust so i removed the entire exhaust from the cat back, had it checked... and it was all good... now the 4runner runs, ive offroaded it, but it lacks power. i know what a blown HG sounds like, thats how my 91 4runner died.

now i did a tune up, thinking it was spark plugs ect... and nothing ( only a minor improvement. )

so the next step was the clutch slipping, but my brother suggested to check the compression cuz it was making a sound ( a low pop sound ) so cylinders 1 - 4 have 150 psi compression... cylinders 5 & 6 have around 30 psi... so now im lost... how can cylinders 1-4 have good compression and 5 & 6 have no compression at all???

BTW... i took off the valve cover to make sure the cam wasnt broken ( had happend to me on a 88 celica) and its good...

so any ideas... would help... if you need me to discribe anything... let me know.. and ill do the best.

abecedarian

could be blown headgaskets, could be mis adjusted valves. a leak-down test could point the finger at the culprit but if you can't do it, I might start with the valve adjustments considering the comment about 'popping' and lack of power.

toyota4x4907

Piston rings, valve seats/seals, bad HG,...

abecedarian

true that, but would still need to do a leak down, or tear down the engine, to find those.
it only takes a few minutes, give or take the time to remove the valve covers, to check the valve lash / clearance.

PlugItIn

as they said, could be many things. The 3.0 v6 best other then the 22r? Not in my opinion, 22re is the most bulletproof engine toyota has built, i think.

Justinlhc

Or in my case, a burnt valve. Either way the cylinder heads have to come off.

4banginRunner

What the heck is an r-22?

dang Yota newbs........its 22R!, and in a 2nd gen 4Runner it would be a 22RE

abecedarian

To answer that question- it's the designation for Freon / refrigerant used in most household and commercial air-conditioning units as well as in most refrigerators and such... at least until recently.

4x4funnerguy

lol... your right 22-r i was typing fast and didnt notice.... and now its r-134... FYI.... hehehehe and im open to all suggestions... so i have a bag of options to do as i go, and i want the take the engine apart solution as last one.. lol... i dont wana take it apart if i dont need to

lol


and thanks for the correction!

abecedarian

well like I said, you can check the valve adjustments on 5 & 6 and at least rule that out.
after that, a leak down test is going to be the best option for finding the problem without tearing the engine apart.

4x4funnerguy

thanks alot bro!!! i see your in salinas... if i get the 4runner fixed.. ill take ya out to lunch as thanks lol.

91Toyota

Abe won't eat lunch with you...because he eats little kids on a regular basis

I had cracked rings on my #3 cylinder and I had a popping sound. You could also try squirting some oil into the cylinder and then do the compression test again!

abecedarian

eh... not in Salinas any more. Forgot to update my locale. Now back home in Elsinore / Temecula Valley, North of San Diego.

4x4funnerguy

lol... well i i have a trip up to san fran this week... lol... but i live in corona. lol... i used to live out there in lake elsinore.... mmm i lived of right there by the ford dealers. lol... FYI... if you meet a girl named karen, at the carwash right there next to the am/pm... walk away... lol... she might give you aids.. or some odd thing... lol!!!

so much for staying on topic lol

a4runnerfreak

Abe's happily married. His wifey Sin91 tells him when he's happy, you know how that goes....

4x4funnerguy

im not saying anything will happen... i just say.. keep away from her... i mean i wouldnt even take a dollar from her... lol...

in other words she is dirty. lol....

a4runnerfreak

DAMN!!!!! Like that, huh? Corona......isn't that part of the 909 area code?!!?

4x4funnerguy

no... its all 951... you need to go to the chino/pomona/ontario area for 909. lol... but it was 909 till like 3 years ago. lol... and yep like that. lol

a4runnerfreak

I grew up in So Cal, I stopped and got gas 1 time in the 909, saw a midget with a mullet pumping gas into her wusstang....er.....rustang, and scared the hell outta me. After that, I avoided the 909 and all of Inland Empire like the plague.

4x4funnerguy

hahahah omg that is soo funny... and i dont doubt it... i have seen some funny crap here... lol... but i still love it. besides... im 3 months here 3 in miami so right when i miss it... its time to go back... and right when i miss miami... its time to go back... so, it plays out perfect!