I know the piston slap issue is a big one..... so I thought I would look around and see if any other manufacturers are suffering from the same problem.

Low and behold, it would seem as though the hypereutectic pistons, used in most modern engines..... may be the cause. It also does not seem as if anyone can figure out what to do about it. While it may not be a reliability issue, it certainly is a "satisfaction with vehicle" issue.

If you are interested in looking at the other side, here is a link to the Toyota Tundra site. They are having the same problems...... and are very unhappy also.

http://www.tundrasolutions.com/cgi-b...c&f=1&t=002052

Just thought some may be interested.

------------------
Gloria
94 Lightning, daily driver
93 EB Explorer, 1000 RTI


[This message has been edited by 94LightningGal (edited 02-04-2001).]

[This message has been edited by 94LightningGal (edited 02-04-2001).]

 

94,

Great research. I have a theory. The 5.4 uses a fully floating piston pin. I believe that the stress that is excerted on the piston when it travels is too much. I am wondering if Ford were to use pressed pins like the Romeo 4.6 if it would cure the problem. I do not like the thought of a steel pin rubbing against an aluminum piston.
Just my WAG on the problem.

BTW, what did you do to the Explorer to get it to ramp 1000?

Regards

Jean Marc Chartier

------------------
00 F-150 XLT SC Flairside 4x4 4.6 w/5spd 3.55LSD
Warn XD9000i, skid plates, Draw tite class III,
Rancho RSX Reflex shocks,
BFG 285/75 R16 MTs,
Borla Cat Back, Headman Headers,
Modified Air Cleaner Outlet Tube
and air box, Ported Throttle body,
Shortened MAF sensor tower,
K&N air filter,
Superchips





[This message has been edited by JMC (edited 02-04-2001).]

 

Me and my X cut and turned the front beams, built our own radius arms with heim joints, built our own dual shock mounts (running dual Rancho 9010's), and ordered custom coils (I call them my slinky springs). The truck also runs the Superrunner Steering (modified for the travel), and the long beam has been relieved for axle clearance. There is also a c-clip eliminator that we made. The front suspension has 19" of travel from full compression to full droop. The rear has 25" of travel.

Hope this pic gives you some idea. This is on Terminator 2 in AZ.




------------------
Gloria
94 Lightning, daily driver
93 EB Explorer, 1000 RTI


[This message has been edited by 94LightningGal (edited 02-04-2001).]

 

Nice, very nice.

regards

Jean Marc Chartier