Diesel noise piston slap

[bjowett]

Any 200 owners notice a rattling or slight diesel sound on cold start (the colder the worse, 45 F and less)? Some Tundras have it, Toyota has switched away from the select build... I'm willing to bet the Japanese built 200 engines get a bit more time on the honing machine to make a perfect bore size.

 

[SpokaneLX470]

Piston slap has been documented on the 5.7 but there is no TSB o recall. Apparently it's all within tolerance.

 

[pagemaster]

Any 200 owners notice a rattling or slight diesel sound on cold start (the colder the worse, 45 F and less)? Some Tundras have it, Toyota has switched away from the select build... I'm willing to bet the Japanese built 200 engines get a bit more time on the honing machine to make a perfect bore size.

The 5.7 from the Land cruiser is not built in the same plant as the Tundra 5.7

 

[bjowett]

No piston slap is within tolerance as far as I'm concerned... what is your documented source (if you don't mind me asking)? I am aware that the 200 series engine is built in Japan, as mentioned above. The Tundra is engine is US built.... it's the point of this post.

 

[SpokaneLX470]

No piston slap is within tolerance as far as I'm concerned... what is your documented source (if you don't mind me asking)? I am aware that the 200 series engine is built in Japan, as mentioned above. The Tundra is engine is US built.... it's the point of this post.

All I know about is the 5.7 slap in the Tundra. Source is a Toyota and Lexus factory trained and factory employed service manager. He does all the work on all 4 of my Toyota products. I was consider trading the 470 in on a new 5.7 Tundra and was picking his brain. He said the only thing he could think of was the piston slap issue on the early 5.7's. Appartently this issues has been resolved via a new source for the effected components. Additionally, this usually goes away after a break in of 1500-2500 miles.

To me, this is also not acceptable, but Toyota has deemed this acceptable and within tolorance. Hope so or they will have a nightmare like Ford did with the 6.0 TD.

As far as the LX570, apparently the problem lies with the parts and not the actuall motor build process. Does not matter if it has been made in Japan or the US I would think.

Yet another reason why I never buy the 1st year of a new drivetrain. Give it a few years to vet itself. Last year of a bodystyle is always a sweet spot.

 

[pagemaster]

As far as the LX570, apparently the problem lies with the parts and not the actuall motor build process.

Tundra 5.7 parts are sourced from the United States. The LC and LX motors use parts from Japan. Not all parts are the same.

Does not matter if it has been made in Japan or the US I would think.

Of course it could have an effect. Not only that. Different install and install designs are what could also have an effect.

 

[SpokaneLX470]

Tundra 5.7 parts are sourced from the United States. The LC and LX motors use parts from Japan. Not all parts are the same.



Of course it could have an effect. Not only that. Different install and install designs are what could also have an effect.

Of course it would make a difference if the parts supplier is different. It would not make a difference if the parts supplier is the same, you could have a team from MIT working on the install and it still would not make a difference. A bad egg is a bad egg.

To me it does not make and sense to source different parts for the same engine from multiple suppliers.

It would be bad enough to have a new $30k rig with piston slap but a $60+ rig with piston slap would be beyond unacceptable.

 

[pagemaster]

It would not make a difference if the parts supplier is the same

Of course it would have an effect if it came from the same supplier but two different factories. The factories may not have the same standards, workers, assembly etc. Also, engine bay designs, spark plugs, etc etc can have an effect as well.

 

[dtt255]

I don't have anything like that happening to me....but it has not hit below 50 degrees here

 

[SpokaneLX470]

Of course it would have an effect if it came from the same supplier but two different factories. The factories may not have the same standards, workers, assembly etc. Also, engine bay designs, spark plugs, etc etc can have an effect as well.

You guys are killing, me read the whole thing before posting a reply... apparantly I have to be very cat in the hat clear here.

I'M ONLY TALKING ABOUT A PART THAT COMES FROM THE MANUFACTOR BAD. I AM NOT SAYING THAT THE MANUFACTORING PROCESS DOES NOT MAKE A DIFFERENCE. IF A PART IS BAD, THE PART IS BAD NO MATTER WHO PUTS IT TOGETHER. YES A BETTER MANUFATORING PROCESS ALWAYS MAKES A HUGE DIFFERENCE. HOWEVER IF A PART IS FATALLY FLAWED IT IS GOING TO HAVE ISSUES.

 

[chimyz]

You guys are killing, me read the whole thing before posting a reply... apparantly I have to be very cat in the hat clear here.

I'M ONLY TALKING ABOUT A PART THAT COMES FROM THE MANUFACTOR BAD. I AM NOT SAYING THAT THE MANUFACTORING PROCESS DOES NOT MAKE A DIFFERENCE. IF A PART IS BAD, THE PART IS BAD NO MATTER WHO PUTS IT TOGETHER. YES A BETTER MANUFATORING PROCESS ALWAYS MAKES A HUGE DIFFERENCE. HOWEVER IF A PART IS FATALLY FLAWED IT IS GOING TO HAVE ISSUES.

WOW...chill out. Not sure how you guys roll in the hundy section, but we don't raise our voices over here in the 200 tech area.

 

[SpokaneLX470]

Nope, not yelling, just trying to make certain that people read and understands what I am saying before replying. Bright and shinny lights were my next option.

 

[SpokaneLX470]

I don't have anything like that happening to me....but it has not hit below 50 degrees here

Ohh, I miss PHX right now.

 

[rove_mcanus]

Any 200 owners notice a rattling or slight diesel sound on cold start (the colder the worse, 45 F and less)? Some Tundras have it, Toyota has switched away from the select build... I'm willing to bet the Japanese built 200 engines get a bit more time on the honing machine to make a perfect bore size.

I very much doubt it's piston slap. That usually only happens at really high revs (much higher than the td will go) when the valve springs can't expand quick enough.

Sounds like a usual cold diesel sounds. It's probably incomplete combustion due to low temperature, and nothing to worry about. Just don't touch the throttle when starting, and allow it to idle for 10 seconds before taking off. Also if it has glow plugs, make sure you're letting it glow before hitting the starter.

 

[rove_mcanus]

Actually I just realised you're probably not talking about the diesel motor. The post is a bit misleading...