Uh.....Guys?

[Stormtroopin5.0]

What Bootlegger said. Adding one additional item, any change in load on the bearings will impact oil film lubrication which directly relates to bearing wear rate. Without going into excessive detail, there is a reason why OEM's design with crankshaft torsionals & full accessory loading in mind.

Sponsored

 

[Kirgiz]

Yeah, sure. That is why nobody is supercharging these engines, right? Ok, I rest my case.

 

[OneFordGT]

Thanks Condor1970 for testing this. I am going to add one to my 16 in Spring just because it makes sense to help the bearings last longer, even it doesn't- oh well. Let us know how it goes accel.

 

[Condor1970]

If anything, it just puts my engine in the same configuration as the F-150. So, if I want to be real simplistic about it, I can just refer to Consumer Reports data showing the F-150 5.0L is the longest lasting V8 out of the big 3. Seriously, the data shows that of the big 3 half tons, the F-150 has the longest lifespan. So, whatever the arguments are, I can at least say my engine is in the same configuration to last as long as possible. And the fact that it isn't making any noise in the 1,200-2,000rpm range anymore, gives me a warm fuzzy feeling compared to before. It's just hard to feel good about your brand new $40k car when it makes that much racket.

 

[accel]

Not having a tensioner on the A/C belt drive and just using a "stretchy belt" is just plain lame engineering. Sure it saves weight, complexity and $$ but we live in reality and that belt WILL stretch over time. With that stretch, you are going to get some interesting vibration/harmonics on the slack side of the belt. The vibrating belt is going to create noise and vibration which will work on the A/C compressor and mounting bracket. Does this have any bearing on the tick? Who knows...As good as a guess as any at this point since Ford still is not saying anything.

Yes. We do not even know what is causing belt related ticking. It could be over tension or under tension. It could be the fact that stretching belt is varying tension with engine varying rpms. I.e. if engine rpms are constant - stretchy belt tension would be almost constant. Changing engine rpms will make stretchy belt temporarily to increase the tension. Due to elastic nature it would temporarily over stretch, then relax tension back as it catches up. So this might pull crankshaft in different directions.

In fact that's how I "reproduce" tick - neutral gear, set rpms to about 1700 and then slightly play with rpms in +-50 rpm range. Tick is most prominent when rpms fluctuate and much less if rpms are constant.

I think regular belt with dedicated tensioner behaves differently.

Well, we'll see. I received the tensioner already. Will do the install tonight or over the weekend. For some reason I have good hopes, but you never know. If does not help I'll revert to stretchy belt and go to the dealer.

 

[gimmie11s]

And your only argument is invalid, as I stated before - they do not balance crankshafts with A/C and pump connected.
Load from serpentine belt is always unequal - they do not put several belts pulling crankshaft pulley from every side just to balance the belts pulling forces. What you refer as shortened main bearing life is from article about bearings found in industrial manufacturing, not about combustion engine crankshaft bearings.

You knock it off with your logical thinking!!

LOL @ this thread.

 

[gimmie11s]

Yeah, interesting folks indeed. Some of us have actually worked in engine development too. Balance on the main bearings, including proper tension, has been known to be crucial for bearing life. https://reliabilityweb.com/articles/entry/the_impact_on_bearing_life_of_overtensioned_belts
If the load on the crank is off balance, it could easily throw off tolerance by microns, which is significant in a modern engine with tight clearances. You also have to remember that as a moving part of the engine, it isn't actually fastened down at all. It is a rotating shaft that only has bearings as guides, and other moving parts are effected by any slight angular momentum change.

The chances of the ticks and rattles being simply the A/C compressor is highly unlikely, given the suggested repairs by Ford Corporate. Out of all the fixes people have posted online, no one has mentioned anything about replacing the compressor and belt. To answer the question some may have as to why this 11-14 TSB hasn't been released for the 18, I would say there are multiple reasons. It likely reduces power slightly, which may be a concern for maintaining SAE ratings. They always have to test and validate new components, to make sure they don't cause other damage. This process takes months at a minimum. Or it simply may not fix the main issue in the engines Ford has tested. Hard to tell. What I do know, is that there is no reason to be a dick to the OP for his attempts to fix the issue or his ideas on why this worked for him. I still think piston slap is unlikely, but stranger things have happened in my years of R&D. It would be interesting to see input on this from @BmacIL

Youre an expert internet reader I guess.

Better tell all those blower guys to immediately removed the blower because it is throwing the crank out of balance!

LOLOL

Get out of here with that nonsense.

 

[Condor1970]

I understand the skepticism. I actually was a bit myself when I installed the thing. I read about the TSB, and wondered why it would work. So, I bought it and gave it a try. I didn't think it would do much, if anything. I was really more interested in simply having a proper belt tension arm installed like the F-150's have. After I test drove the car for a bit, I ended up with a smile scratching my head, thinking, "No sh!t".

It obviously doesn't work for everyone, or it would probably be much more common knowledge with lots of testimonies on how well it works. But, there are specifically a few guys who have done it with success. I'm one of them.

 

[gimmie11s]

But, there are specifically a few guys who have done it with success. I'm one of them.

Except you're not, because you are now posting videos about how it's making noise again.

I truly wish you the best.

 

[Condor1970]

Except you're not, because you are now posting videos about how it's making noise again.

I truly wish you the best.

Do you not understand that grinding noise is something completely different that started months ago when they replaced the clutch. Nothing internal to the engine. You really aren't too swift are you?

 

[gimmie11s]

Do you not understand that grinding noise is something completely different that started months ago when they replaced the clutch. Nothing internal to the engine. You really aren't too swift are you?

 

[jake_zx2]

Yeah, sure. That is why nobody is supercharging these engines, right? Ok, I rest my case.

Oh, I wasn't aware that you use the same size serpentine belt and belt routing on a blower, creating more tension on the crank. Is that really how it works?

Look, here's the bottom line. Wanna disprove it? Then buy the fucking part and disprove it when your ticking doesn't stop. Until then, you're just talking to hear yourself talk (and sounding like an idiot in the process)

Great work Condor! I'll probably give this a try sometime after Christmas, I'll update if my ticking stops!

 

[zackmd1]

Just removing the AC belt might be enough replicate the results instead of spending $120.... Just saying... Amazed at how "passionate" some are to disprove/downplay this.

 

[gimmie11s]

Look, here's the bottom line. Wanna disprove it? Then buy the fucking part and disprove it when your ticking doesn't stop. Until then, you're just talking to hear yourself talk (and sounding like an idiot in the process)

Great work Condor! I'll probably give this a try sometime after Christmas, I'll update if my ticking stops!

Great work LOL.

Pro tip—OP already disproved it himself, today. His newly posted video has the car ticking like a run away typewriter.

 

[Condor1970]

Just removing the AC belt might be enough replicate the results instead of spending $120.... Just saying... Amazed at how "passionate" some are to disprove/downplay this.

Yeah, it even says in the TSB to just remove the belt first to see if there is an effect. I didn't bother, because I wanted to install a tension arm anyway. I was quite pleased when it actually made a difference.

Sponsored