Engine running rough

[mitchjohnson000]

Technically if the timing belt snapped or hopped in the right way it could produce compression numbers that would indicate one side is bad but the other isn't, so they might be telling the truth. Hopefully they realize its a belt not a chain lol. Extremely low chance its related to pistons/rings, has to be top end related.

 

[vilasman]

So now he's definitely saying it has no compression on one side. Should I take it to a dealer or get an engine

 

[vilasman]

So he's saying if you take 3 plugs out on right side it will start. If you put compression pump on it you get about 30 lbs on those 3 cylinders. Put the plugs back in it wont start.
Little mad that if I get another engine I'm looking at doing another timing belt early... but.... that's having a land cruiser

 

[Ayune]

Have you read the OBD codes yet?

 

[mitchjohnson000]

So now he's definitely saying it has no compression on one side. Should I take it to a dealer or get an engine

Ask for a proper diagnosis. So many ways to go about it. My checklist would be.

1. Use camera inside spark plug hole to check for odd chance of piston/ring damage
2. Check timing marks on crank/cam pulleys
3. Take off valve cover and look for broken springs/excessive wear on cams.
4. Leakdown test

I believe that the root cause is timing belt related. Toyota claims these are interference motors but people have snapped timing belts without bending valves so I wouldn't replace the engine yet..

 

[vilasman]

Would it start even with the timing belt snapped?

 

[mitchjohnson000]

Would it start even with the timing belt snapped?

No, it wouldn't start with a snapped timing belt. If the timing was off it could though.

 

[vilasman]

I'm asking him now to check the timing belt... mine is a belt... I have a picture of the old one... and straight asking him what the obd is saying... he's supposed to send me a video of the compression test

 

[vilasman]

I maybe looking at getting a replacement engine. Where would you go for a remanufactured one and how much should it cost me?

 

[kruisinkid]

something similar popped up a couple weeks ago. @2001LC started a thread on it. the camshaft pulley wasnt torqued properly, snapped the shaft dowel and timing was then enough degrees off on that bank to present as loss of compression, totally soaked plugs and lots of fuel in the cylinders. engine was fine once the dowel and timing was corrected.

 

[3_puppies]

2uz? what is wrong with yours, they are tough engines, hard to destroy unless overheated.

should be lots of good used ones available

 

[planomateo]

2uz? what is wrong with yours, they are tough engines, hard to destroy unless overheated.

Engine running rough

forum.ih8mud.com

 

[gregnash]

something similar popped up a couple weeks ago. @2001LC started a thread on it. the camshaft pulley wasnt torqued properly, snapped the shaft dowel and timing was then enough degrees off on that bank to present as loss of compression, totally soaked plugs and lots of fuel in the cylinders. engine was fine once the dowel and timing was corrected.

This... I was just going to suggest this as the symptoms sound VERY similar, like scarily similar.

 

[vilasman]

A hair under $4200 for the engine, installed, 1 year warranty with $1000 towards labor if it goes kaput in that year....

 

[kruisinkid]

we cant help you and talk you off the ledge if you dont tell us all the updates if you have them.
if you flick on a light switch and the light doesnt come on, is your first thought to rewire the house?
dont take offense to that, i/we would love to save you several thousands of dollars on an unneeded engine swap on one of the most dependable engines on the road today.

still havent seen that obd code yet.........

 

[hoser]

You won't need to call AAA if a coil dies. The car will still run/drive fine, just minor misfires. I've driven 300 miles on a bad coil with no problem. You might get worse gas mileage but it's not a big deal.

I believe you can kill your catalytic converters running that long with a misfire.

 

[2001LC]

Reading over this lightly. I've some issue of concern.
1) coolant low.
2) oil low.
3) Bad spark plugs.
4) "I've knocked a hole in a crank case before... actually I think I've done it 3 times"
5) No compression one side. Is that bank 2?
"So he's saying if you take 3 plugs out on right side it will start" Right side is bank 2! "If you put compression pump on it you get about 30 lbs on those 3 cylinders" This indicates only 3 cylinder have no compression. I assume pump is typo and mean gauge. Right side of engine is your right, as your setting in drive seat (PS of LH hand drive)

Questons:
What year?
How many miles?
So is it bank 2 with "reported" no compression?
Are all 4 cylinders of the bank below 30 PSI or just 3 cylinders?
Oil & filter changed every ~5K mile history?
Air filter change ~20K?
Last coolant flush?
Spark plug last changed at mile?
Has cabin heater been blowing very hot or do you know?
Has starter been replace? At what mileage?

No (<30 PSI) compression on a bank (side). Next test is leak-down. Than scope any cylinder that fail leak down test.
Here's one no compression bank 2

Timing belt job just done. Blown engine or savable? This is interesting guys!

Happy 2020 all. Well, I spent last day of 2019, inspecting a 2005 LC w/~200K, that was towed to me. That had a Timing Belt installed a few days before coming to me Let me know your thoughts: Blown engine from interference or is there hope? Also what do you think happened? Skip story and go...

forum.ih8mud.com

No (<40 PSI) compression 2 or 3 cylinders next to each other, is likely head gasket issue and or warped head.
Here's one overheated badly.

Scored 2007 Unicorn. The holy grail of 100 series.

Yep the search is over, I scored a Silver 2007 Unicorn Land Cruiser w/Thunder Cloud trim and stone interior. I started this hobby of restoring 100 series, after getting the bug! A bug perpetuated reading mud, as a distraction from the stress of trading oil futures contracts 23 hours a day. I'd...

forum.ih8mud.com

 

[vilasman]

Well... I've already bought the next engine, install should start today.
He did tell me one cylinder was burned...
Dealer wanted almost $9000.
I do believe there's more to the story than what I'm being told... but it's given me 7 years and 135,000 miles... I can't cry or be mad.
I need a land cruiser specialist closer to dc than hagerstown

 

[kruisinkid]

@OTRAMM ???

 

[Ayune]

Reminds me of the guy who went in for a sensor and left with a 200. You can lead a horse to water, but...