okevolutionVIII

iTrader: (71)

With about 700 miles on my engine that I built, I pulled the oil pan to replace a broken piston oil squiter and decided to see how the rod bearings looked. They looked fine but the #1 rod was installed backwards with the tangs facing the intake. My tuner hasn't been able to find the reason for a low knock count even with AFRs in the low 10s and very low timing. I've had this ticking on the timing side of the engine but thought it would be related to the timing components but maybe not. Would a rod installed backwards on a fully balanced 4G63 with a Fluidampr cause light or false knock and does it need to be reversed anytime soon?

batty200

iTrader: (3)

I wouldn't be worried about the rod but did you install the piston backwards? Was it mounted on the rod correctly then installed backwards or did you install the rod backwards and then install piston correctly. I don't think a rod backwards is really an issue as long as the rod doesn't have oil squirter's on them.

siemens03

iTrader: (3)

if the piston was in backwards it would probably have bent valve first time it cranked.

okevolutionVIII

iTrader: (71)

I'm certain the piston was installed right as I have pics of the block before the head was bolted on. I can't believe I overlooked having the rod installed wrong withon the time I spent building it. The compression was solid at 168-170 psi on all cylinders.

boosted91t

iTrader: (65)

The rod isn't stronger in one direction then the other, it's related to the tangs on the bearings and the direction of rotation. Personally I wouldn't mess with it. Also not questioning your tuner, but overly rich and low timing conditions can be more prone to knock then a correctly tuned afr/timing map.

GTijoejoe

iTrader: (25)

deleted

Topher86

I would pull it apart. Worth it for piece of mind

boosted91t

iTrader: (65)

Whats your reasoning behind this?

batty200

iTrader: (3)

There is no reason to tear apart but many people who don't know how an engine works will worry.

n2oiroc

iTrader: (33)

tang direction is 100% irrelevant. i wouldnt touch a thing.

94AWDcoupe

iTrader: (125)