5SFE engine tear down for '3SGZE' build. Do I need these bits?

[rolleraction]

From memory I had a few different 3S & 5S pickups laying around and found one that fitted straight up. I assume I used a non balance shaft 5S pickup, but was a few years ago now...

[mr2mark]

Make sure to plug or weld up the oil feed to the balance shafts otherwise you will be losing oil pressure.


I believe this thread has info on it http://www.mr2oc.com/showthread.php?t=395274

[MWP]

Did you get a strong 5S or a weak one?

No point playing with an earlier weak 5S when the later stronger blocks are the same price and easy to get.

[MWP]

BTW, this is the easiest way to recognise a strong 5S block...

Notice it has a square 90deg corner up next to the water pump.
The weaker version 5S (and all 3S-GTE's) follow the shape of the bore and head bolt hole.

[TERRA Operative]

hmmm, looks like according to that link above, Road and Track sold me an early block, I freaking specifically asked for a late block too. I swapped him for a gen 4 3SGTE block from a 2000 model Caldina, got freaking ripped off.

Well, into the bin with this one and off to find a late model block...........
Anyone want to buy a stripped early 5S block? It'll be gone next weekend.

[mick08]

I read somewhere that the balance shafts were needed on any four cylinder engine above 1900cc-2000cc capacities because as eluded to earlier they are inherantly unbalanced and if people are building such engines without balance shafts they must be using them in a powerband above or below the vibration rpm, I also read that mitsubishi was indeed the first to use the balance shafts in their 2.6ltr, it said that 'Porsche' approached mitsubishi cap in hand to ask for permission to use this method on their engines.

[TERRA Operative]

I won't be using the shafts at all. These engines have been proven to not need them.

Just gave the block away to a mate, as I'm not going to stuff around with a weaker block when I'm aiming for 350+Kw.
One more stuff around to the list.. Why do I always get stuffed around by almost every workshop I deal with???

[mr2mark]

hmmm, looks like according to that link above, Road and Track sold me an early block, I freaking specifically asked for a late block too. I swapped him for a gen 4 3SGTE block from a 2000 model Caldina, got freaking ripped off.

I would have taken it back if that is what was specifically agreed on.

[banana_socks]

I read somewhere that the balance shafts were needed on any four cylinder engine above 1900cc-2000cc capacities because as eluded to earlier they are inherantly unbalanced and if people are building such engines without balance shafts they must be using them in a powerband above or below the vibration rpm

Vibrations get worse as the cylinder sizes increase, as the mass of the rotating parts is greater. The 2L 'limit' was just a general observation of engines at the time, with anything greater deemed too harsh or unrefined. However in my personal experience removing them was barely noticeable, and that was on a 2.6L engine.

[mick08]

I won't be using the shafts at all. These engines have been proven to not need them.

Just gave the block away to a mate, as I'm not going to stuff around with a weaker block when I'm aiming for 350+Kw.
One more stuff around to the list.. Why do I always get stuffed around by almost every workshop I deal with???

Don't worry that happens to everyone (getting stuffed arnd) even to mechanics themselves, i think anything that is not 'stock' and doesn't have a genuine factory part number will give you trouble, Anyone that has modified a car has had this and i think its to test if you are really commited to building a quality item that your proud of or if your happy with a halfarsed project that goes 'OK'.

[TERRA Operative]

I would have taken it back if that is what was specifically agreed on.

It was months ago when the swap was done and I only pulled it down now.
Serves me right for taking the guy at his word and not checking myself at the time.
He did a fantastic job of machining the 5EFHE I rebuilt, then does this to me???

Ah well, live and learn. If you want it done right, do it yourself......

[MWP]

You sure?
Its not like R&T to make a mistake like that... they have a pretty good reputation.

But, yes, you got a bad deal anyway.
I can pick up a strong 5S block for ~$220 here no problems.
A gen4 3SGTE block should be worth a decent amount more than that.

Here is a comparison photo.
This is what the weak 3S and 5S blocks look like, and what happens if you push them.

[Cuts]

^^ feels good man ^^

[TERRA Operative]

MWP, I'm positive. The block I asked for is not the one I got. I made it clear to him that I would be strapping a screw type supercharger to it and aiming for 350Kw or so and hence wanted the late block.
He called me to his workshop and had two identicla engines to choose from sitting on his ute.
I didn't know what the differences were at the time, so I assumed he gave me the right thing.

Ah well, live and learn.

[mr2mark]

Well for the record Im doing fine on ~300rwkw with gen 2 3s block so far (touchwood and all that) but if you are starting from scratch may as well start with the late 5s block.