KA24DE rod type?

[fiznat]

I was at the machine shop today talking to the guy who's doing the work on my KA and he asked me about the rods on the KA: if they're press-fit or the full floating type. He explained the difference to me (full floating spins on bushings both on the crank end and piston end, while press-fit are secured to the crank and spin on only the piston), but I still didnt know which our engine had... Anyone know?

[PMan_S13]

They only have bushings on the crank. The piston is held on with a pin

[DriFt3r]

in other words press fit

[WDRacing]

The rod will have to spin at the crank and the piston, secured is a bad word to use I guess, I picture welded or bonded when I hear secured. I would have thought you would have a better word to use with that college edumacation from BC.

On the flip side of things, I may be up in in Bean town for the Holidays this year. We should hook up and drink some beer.

[sil80drifter]

Ok, FIRST off, you tell HIM about beers, and you don't tell ME?! Me and Fiznat are almost like brothers who never met and occasionally chat on a car message board and AIM.

and second, the piston IS secured to the crank. otherwise it would fly off and hit a WD in the head everytime he started an engine.

sil80

[TrunkMonkey]

in other words press fit

240sx KA rods are full float.

press fit means the piston pin is pressed into the small end of the connecting rod.

full float means the piston pin is pressed into the piston.

-demetrius

[Open4Cycle]

LOL Press fit means that the wrist pin is captured by press fit into the rod. Which is slip fit in the pistons wrist pin bores.

Full floating (better) wrist pin means that the wrist pin is not pressed into any part but is slip fit in both the piston and rod. The wrist pin is captured by circlip keepers which fit in a keeper groove within the piston wrist pin bore.

Yes the 240SX KA comes with full floating, while the truck KA comes with press fit.

[fiznat]

The rod will have to spin at the crank and the piston, secured is a bad word to use I guess, I picture welded or bonded when I hear secured. I would have thought you would have a better word to use with that college edumacation from BC.

On the flip side of things, I may be up in in Bean town for the Holidays this year. We should hook up and drink some beer.

Haha okay, a couple things:

1. "secured" is actually the word that my machine shop guy used, so I thought it would be appropriate in this post as well. By "secured," he (and I) mean that it does not spin freely ("float") on bushings + oil, so that if the bushing end were to fail, the rod would be unable to move in it's full sweep, thus causing catistrophic damage. Fully floating, on the other hand, would not have that problem...

2. I went to BU, not BC! If youre gonna try to chump me you gotta be 100% on the details sucka! (PS we hate BC)

3. I'm definetly down for meeting up for beers, sopadope also lives in the boston area and we've been talking about beers for a while now... plus Movingviolation240 is in Rhode Island (not far from Boston) till august so that would be cool as well.... although you said the Holidays so I guess that's after august...

4. HOWEVER I no longer live in Boston... I graduated (from BU...) this spring so I'm back at home in Connecticut. I'm still definetly down for visiting people and all that though, I have lots of friends still at school who havent graduated yet, places where I could crash or whatever-- we could still do something for sure.

aaaanyways

Thanks for the info guys... I was sorta kinda thinking that the rods were full floating but I wasnt completely sure. Good to know. And Sil80, when ARE we gonna meet up!?

[sil80drifter]

when we paint the cars

sil80