Look what Fram paranoia made me do...

[badnews]

Originally Posted By: bigbird_1
Originally Posted By: rcy
This was it's first oil change, having gone 16000KM on the factory fill.


Good thing it's not his vehicle. 16k km on a factory fill is crazy. Who knows what kind of metal shards and flakes are floating around in a new engine. If I owned that vehicle, the FF would be out at 1k km, and again at 3k km, regardless of what the OLM said.


metal shards and flakes
Please ...

 

[yaris0128]

If I had to pay for the oil changes on a company car Id for use the cheapest oil and filter. Why pay for anything nice, it isnt yours and theyll replace it eventually.

 

[rslifkin]

There's nothing wrong with a timing chain, as they usually last a long time. It's all the VVT and other fancy [censored] that causes issues. My Jeep has a timing chain, no rattle or anything at 105k miles, and it doesn't even have a tensioner on the chain.

 

[Gary Allan]

somewhat

Originally Posted By: rslifkin
There's nothing wrong with a timing chain, as they usually last a long time. It's all the VVT and other fancy [censored] that causes issues. My Jeep has a timing chain, no rattle or anything at 105k miles, and it doesn't even have a tensioner on the chain.


I had to double check this. While essentially identical for the most part, the 2.5 has some differences from the 4.0. Aside from the GM V6 bolt pattern and one piece rear main, a tensioner is one of them. The 2.5 has a simple spring tensioner. The 4.0 does not. The other is a filter bypass port that would follow the GM filter deal. The 4.2 was dropped and replaced with the 2.8 GM V6. It reemerged as the 4.0 later on after the 2.8 proved inadequate for the product line.

I can't find the measurements of crank to cam "center to center", but eying it up ..they look identical. I can't see where one would require a tensioner ..and one would not.

While they spec different timing chain part numbers, they're both 64 link. Both cam sprockets have 48 teeth (different numbers) and both spec the same timing chain guide.

Ah ..both have the identical timing cover gasket set ..which would lead me to conclude that the crank:cam center to center measurement is the same. I'll assume that any true differences were due to some GM influence in fastening or whatever. There's no fundamental need for different part numbers as I see it.

 

[yaris0128]

Originally Posted By: Steve S
Cars have too much technology for something that all it needs to really do is get you from point to point with out issue.


True true. If we could cut back on all the junk we dont need on cars we could double the gas mileage on our cars. Just look at the honda CRX. Amazing car that was just very light with a good I4 to push it to 60mpg on the highway. Just amazing. Why cant we do that now? Oh ya I forgot we need NAV systems and slushie machines to drive these days.

 

[rcy]

Originally Posted By: bigbird_1
Originally Posted By: rcy
This was it's first oil change, having gone 16000KM on the factory fill.


Good thing it's not his vehicle. 16k km on a factory fill is crazy. Who knows what kind of metal shards and flakes are floating around in a new engine. If I owned that vehicle, the FF would be out at 1k km, and again at 3k km, regardless of what the OLM said.


UOA is now posted, if you want to see what kind of metal shards and flakes were floating around...