Engine is gone at 149,970 miles
05-31-07, 08:11 PM
#61
Lexus Champion
Given the 1MZ-FE piston heads have such indentation, I'd say that the 1MZ-FE engine is non-interference IMHO. (Otherwise there's no point for Toyota to make it that way.)
05-31-07, 08:32 PM
#62
Lexus Connoisseur
That's one of them that I was thinking about. Something I was reading told me there was a slight bump in power for the ES in 99 and perhaps that was when the changeover was. There certainly weren't any Toyota Harriers, 97 and 98 model years, that had the 3.0 1MZFE, only the 2.2 L 5SFE and later the 2.4 L 2AZFE. The 1MZFE was used since about 94 in the ES/Camry.
If my rods ever go (they will one day if you wait long enough), I am getting some of these, http://www.pauter.com/toyota.htm
If my rods ever go (they will one day if you wait long enough), I am getting some of these, http://www.pauter.com/toyota.htm
05-31-07, 08:42 PM
#63
Super Moderator
05-31-07, 08:45 PM
#64
Pole Position
Thread Starter
Some piston heads are designed to clear valves, thus you see the indentation. Here's a photo of such design (non-Toyota.)
Given the 1MZ-FE piston heads have such indentation, I'd say that the 1MZ-FE engine is non-interference IMHO. (Otherwise there's no point for Toyota to make it that way.)
Given the 1MZ-FE piston heads have such indentation, I'd say that the 1MZ-FE engine is non-interference IMHO. (Otherwise there's no point for Toyota to make it that way.)
05-31-07, 08:53 PM
#65
Any idea how new block affects MPG?
I am still a bit at loss about rebuilding the head. Maybe I should have gotten a factory new head assembly, not rebuild. Or at least new cams, gears and valve parts. Right now I only know they will replace one [broken] camshaft (out of 4), I don't know if the rest of them will stress another 150K miles.
I am still a bit at loss about rebuilding the head. Maybe I should have gotten a factory new head assembly, not rebuild. Or at least new cams, gears and valve parts. Right now I only know they will replace one [broken] camshaft (out of 4), I don't know if the rest of them will stress another 150K miles.
http://www.tegger.com/hondafaq/sludg...ng_sludge.html
If you are concerned about sludge on other parts such as piston rings, Auto-RX is a safe and proven cleaner.
Did the mechanic explain to you why that rod is broken? Stuck piston ring?
05-31-07, 09:05 PM
#67
Super Moderator
Auto-Rx is a proven winner. My uncle still is amazed to this day at what that stuff can do.
As far as intereference/non-interference, that was always a big debate, but there definitely was a point where there was a change over.
As far as intereference/non-interference, that was always a big debate, but there definitely was a point where there was a change over.
05-31-07, 10:37 PM
#69
Pole Position
Thread Starter
05-31-07, 10:59 PM
#70
Forged rods have lighter weight, which reduces power wasted to turn these things. Some of the newer engines such as the new V3.7 in the MDX have forged steel rods and camshafts to reduce rotational mass.
Again, no one makes it. Lexmex and I are just dreaming.
Again, no one makes it. Lexmex and I are just dreaming.
05-31-07, 11:03 PM
#71
Pole Position
Thread Starter
That is wrong with 1MZ? It is outdated or something?
06-01-07, 05:39 AM
#72
Super Moderator
06-01-07, 06:06 AM
#73
Lexus Champion
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Any idea how new block affects MPG?
I am still a bit at loss about rebuilding the head. Maybe I should have gotten a factory new head assembly, not rebuild. Or at least new cams, gears and valve parts. Right now I only know they will replace one [broken] camshaft (out of 4), I don't know if the rest of them will stress another 150K miles.
I am still a bit at loss about rebuilding the head. Maybe I should have gotten a factory new head assembly, not rebuild. Or at least new cams, gears and valve parts. Right now I only know they will replace one [broken] camshaft (out of 4), I don't know if the rest of them will stress another 150K miles.
06-07-07, 06:20 PM
#74
Pole Position
Thread Starter
Update.
Sparkplugs on cylinders 3 and 5 where busted (white ceramics broke). I still trying to think why. I know that cylinder 5 rod broke, but how does it affect spark plugs? My only guess is heat buildup. But ceramics? They cannot handle it?
FYI: All 6 spark plugs are 2 month old. And, no, I did not over-torque them!
Sparkplugs on cylinders 3 and 5 where busted (white ceramics broke). I still trying to think why. I know that cylinder 5 rod broke, but how does it affect spark plugs? My only guess is heat buildup. But ceramics? They cannot handle it?
FYI: All 6 spark plugs are 2 month old. And, no, I did not over-torque them!
06-07-07, 06:31 PM
#75
Super Moderator
Update.
Sparkplugs on cylinders 3 and 5 where busted (white ceramics broke). I still trying to think why. I know that cylinder 5 rod broke, but how does it affect spark plugs? My only guess is heat buildup. But ceramics? They cannot handle it?
FYI: All 6 spark plugs are 2 month old. And, no, I did not over-torque them!
Sparkplugs on cylinders 3 and 5 where busted (white ceramics broke). I still trying to think why. I know that cylinder 5 rod broke, but how does it affect spark plugs? My only guess is heat buildup. But ceramics? They cannot handle it?
FYI: All 6 spark plugs are 2 month old. And, no, I did not over-torque them!