Jun 10, 2004 · If you don't have it then when your motor heats up you have lower piston to cyl wall clearance. My car ticks on startup and goes completely away when warm. :beer: Sep 6, 2004 #16
Personally a fan of oil squirts and lowering oil temps to reduce piston temps I have seen data that can see this bring down crown temps by up to 100 degrees C. To help save marginal durability pistons it's a good shout but for lower temps I prefer forced cooling where possible. Just my $0.02
Part that connects piston to crankshaft is broken "Throwing a rod" means a connecting rod, which connects a piston and the crankshaft, has broken. It makes a sound exactly like you'd think — a metal rod knocking under the hood, doing all kinds of damage — and is pretty much guaranteed to ruin your day.
Feb 22, 2011 · I agree that piston slap is the most likely cause of the top end noise. Clutch knock is probably wear on the aluminum splines where it attaches to the transmission input shaft. The knock will gradually get louder but it'll go a long long time before it causes a problem. The new clutch will solve it.
Oct 15, 2006 · Q. You have written about the diesel-type noise found in gasoline engines called piston slap but I don't recall you writing about the cause. Also, would a certain type of oil help this condition?
Oil pressure looks fine. It did this with dino oil and a no-name filter, it still did it with 10/30 full synth and a nice filter. So doubt its a pressure issue. Which leaves me thinking I have piston skirt slap. So I just fired it up with #1 plug wire pulled and worked my way down. With #3 pulled sound stopped. Sigh.....
Mar 27, 2017 · AR9100 will help improve oils film forming ability which can help improve oil film on piston skirts and also improve … see more Hello, Many 6.7 owners report reduced engine noise when using AR9100, if the ticking noise is a piston slap or hydraulic lifter noise (or something else along those lines) AR9100 may be able to help.
May 09, 2019 · So why are you convinced there is piston slap and not a lazy or out of adjustment valve. Using too thick a grade of oil can have a bigger detrimental effect by reducing oil flow to critical areas, making the pump work harder and when cold the engine harder to turn over. If it is going in on the 28th then probably not that many more miles on it.
Benefits of the PTFE Coated Piston Compared with Standard Guide Bands and Rider rings The specific surface pressure is reduced by coating the entire piston skirt all the way to the seal groove. By maintaining a low radial section of the bearing element, thermal expansion is reduced allowing significantly lower running clearances to be specified.