New motor

At 225k on my previous 2.7 taco I was burning a quart of oil every 600 miles. Super white truck and my rear quarter was black like a diesel from how bad it was. Pretty sure it was the oil control rings being stuck since it had great compression all across. Ran great, and I tried every single remedy and oil/fuel additive to try and help it. Never got better for me. Curious to see how you're doing a month later!

 

how many total miles on engine

what type environs / driving encountered

commuter

hi-way

what type oil

185 psi is better than average compression........................room temp

if the rings all were going south not likely get better than average compression

 

It's not common for the rings to go with that many miles. Typically it is just the valve stem seals that go bad and will consume the oil. Have them replaced and I think you'll be fine. It's typical they harden with that many miles.

 

I don't think I looked at the pistons again, or at least took pictures. My consumption has decreased a little bit. 2 tanks(500-600 miles) brings me down to the bottom of the line.

I still haven't done the throttle body treatment yet, I just don't have a good space to do it in. Staying in a housing development so I can't be smoking up the whole thing.

My throw out bearing is on its way out now too.

I'm currently looking around for a machine shop back home to hone and assemble my block once I have it pulled and disassembled.

I'm looking at the yotashop rebuild kit. Depending on price of the rebuild, I might have them bore the block a bit and port and polish everything.
I haven't found a lot of reviews on yotashop, but the ones for older trucks are all positive.

 

ill have these replaced while ive got the engine apart. ive done a wet compression test and my numbers shoot up.the valve stem seals are probably just another part of the problem. im going to go through the motor and replace just about everything, so at the end of it, ill have a new motor. good for another 260k+ haha

 

Interesting & sad because my 487,000 mile 1992 22R-E was only burning 1 quart every 3000 miles and still had 180 PSI compression in all 4 cylinders.

 

How long you drive it like that?

 

I wish this wasnt my daily and I could afford to have it out of commission for a while. I would definitely go the tacundra swap route.


Luckily I have another project truck that needs a weekend or twos worth of work to get stickered so I can take the taco off the road for a couple months.

 

Just take the head off and do a valve grind with new head gaskets and all. Your probably burning oil through the exhaust valves. New valve guides and oil seals will do wonders. maybe a 3 day job. Good luck

 

My 96 burns oil but doesn’t blow smoke from exhaust or even show black oil residue on the bed either. Compression 185s all around. Most likely stuck oil ring

 

I've got no evidence of oil burning aside from the buildup on my bed. My compression is low on all cylinders. The original test was 125-140. Couple of crankcase seafoam treatments and some piston soaking brought it up to 140-160. Spraying some wd-40 in the cylinders and running tests brings it up. The only thing I haven't done yet is a leak down test.

My rings are bad. I wish it was valves. I paid $9000 bucks for the truck 2 years ago. Brand new frame and a fuck ton of new parts were thrown into it at 196k.

I'm going to redo the whole motor and possibly trans. I'll essential have a new truck at that point, for less than half of what I paid for it. I'm ok with that. I'll have this one until the body rots away, which isn't going to be for a long time

 

is this a complaint ??

 

Do you get blue smoke out of the exhaust?

 

Sounds like you're getting the engine rebuilt anyway but heres a compression check for determining rings or seals

https://youtu.be/LkYs2E67n08

 

spraying a cylinder actually tell U nothing

what type o driving 90% o the time
commuter bump/grind

lots o idling ????

if U plan to rebuild soon or simply a direct result o accumulated mileage

U r tying Urself in knotts.......................a rebuild done properly cures ALL Ur Ills !!

 

No blue smoke.

Thank you

I didn't understand most of your message.

But It's getting rebuilt. I'm in the process of finding a reputable shop and getting the parts. Ive found one or two kits with just about everything I need, but can't find much information on the quality of said kits.

 

the quality of the mechanic accounts for much..............parts is parts


U dont understand a response ‘ spraying a cylinder actually tells U nothing ‘ ??????

 

understood that perfectly fine.

and wet compression tests are a decent diagnostic tool. ive got bad rings on at least 4 cylinders and a bad valve on the one a wet test didnt bring the compression up.


this

what type o driving 90% o the time
commuter bump/grind

lots o idling ????

i can only assume you forgot to put the letter F after the Os. in which case i understand the message.



and parts arent parts. id much rather have a well known quality part on my engines inner workings then have some no name brand that could fail within a year. like i previously said in this thread, i dont plan on getting rid of this anytime soon, so i want this rebuild to last well past the 265k that the original motor has lasted.

 

a proper compression test tells U ALL U need to know

a leak down test done properly is even better.......................... both done engine cold

NEVER HOT

worn rings or wonky valves / both show up if tests done correctly

hot engine + sprayed cylinder done right I can get a near perfect reading................

what have U got.......................still a fooookd up engine

spraying a cylinder tells U NOTHING

 

He's already done a "proper" compression test. Go back and read and you'll see that. His numbers were very low. This is not due entirely to bad valves or valve guides. These engines are know for having oil control ring sticking issues. Hell the previous generations had a recall for them. The 2tr was supposedly "fixed" but many people getting into the higher miles have found that not to be the case.