3T and 3T-GTE CrankS

[toyota81]

Hi guys, can anyone tell me are 3T and 3T-GTE crankshafts the same?

[convertableTA23]

toyodiy give two different part numbers, so that to me says there is some difference, but then again that difference could mean nothing in the real world

[J-M kujala]

3TGTE crank is heavier, i dont know if early 3TGTE share same crank than early 3T, but atleast late 3TGTE had own crank, its heavier, otherwise same.. also late 3TEU share that late type crank

3TC Crank




i take a picture sometimes a go at 3T-GTEU late Crankshaft.
i mean to write left text in picture, thicker than early, but i write thicker than late :lol: i sometimes mixt up words and misunderstund at my text bcz English is not my First language... only bad second one, and do not usually even speak English :lol2: there is noticeable weight difference, i think late crank is more stable in high RPM.. But bought work well in all aplications !! is my personal opinion...

[stidnam]

here in Aus the 3t crank only has half the counterweights compared to the 3tgte crank with the full counterweights. It looks like the 2tc crank. Other countries (ie USA) appear to have the 3tgte style crank with full counterweights in their 3t motors.

[AE25]

curious if anyone knows for sure if the US 3t crank is forged or cast? i think someone telling porkies but never had it confirmed.
all the 3tgte cranks i've checked are cast and have 8 counter weights.

[J-M kujala]

all 3T cranks had 8 counterweights... (no one never post a picture or tell 4 counterweight 3T crank !! ) same cranks worldwide... all are Cast Steel cranks. but good quality material, some forged cranks in other car manufacturers can be forged, but sometimes they are quite poor material, so my opinion is that if crank is forger, it wont tell is it good or not... or cast crank is always weaker..

in here finland, most of the cranks are from Japan import engines at from 80`s - early90`s

[turbotoy]

The rod journal dimensions are different. Still same factory forged crank.

[stidnam]

Happy to be wrong but I am basing my comments off the below diagram

[turbotoy]

Sorry. In the States the 3tc had the fully counter crankshaft and the 2tc had the crankshaft in the diagram. When I built my 3tgteu I used 3tc rod bearings. The 3tc bearings were wider than the 3tgteu bearings I replaced.

[AE25]

stidnam.. pic came from my website and was created straight from a toyota 3tgte manual and also the 2t/3t/2tg toyota manual (as far as i recall this manual does not show a full counterweight crank). at the time I didn't know the US spec 3t were full counterweight. I believe (ass-u-me) the nzdm 3T is only 4 counterweight but have not pulled a pushrod 3t to bits personally. that info was based on others saying they'd seen 4 counter weighted 3t OHV.
Have known there to be two widths of bearing (from bearing suppliers) but never knew which engines had what size?!

[J-M kujala]

Crank journals are still the same, but yes there is different style bearings, early one, then what we usually see, and 3tgte style.

-all 78mm cranks are with 8 counterweigt (3T, 3tgte. 3Teu..) 2 modell new and old.

-All 2T cranks are the same. (stock ones) 4 counterweight..

I have seen this talk in old 3tc forum alao and someone take that picture to confirm her opinion, also repair books mix pictures, toyota own.. That in some 3t pics are from 2t bottom, they are just illustration purpose.


I have seen that some guys says that they have or have open 2T 8 counterweight or 3T 4 counterweighted engine. Usually why this happen, they eont measure stroke ans see only how many counterweight there is + what is stamped to a blog. Some one before have swap the internals already or block....

-UGH-

[toyota1515]

We have the same discussion in other forum and at least i find that there are 2 different manufacturer plants for the 8 counterbalanced 3T, 3TC, 3-4TGTE Motors crankshafts with different molds achieving practically
the same product, cuz i have had both types of crankshaft out of 3TC's here in the state, plus the 4TGTE i got has the non machined front counterweight crank, and i was the one who took this engine appart for the first time, plus both of them are just grams apart in weight from each other not even 1kilo of difference between each other, and by the way all of 2T, 3T, 3TC, 3-4TGTE 8 counter balanced crankshaft are Forged Steel from Factory!

[toyota1515]

In the other hand, the 3T, 3TC blocks are different, the main caps on the 3-4TGTE blocks are thicker in certain areas to make it stronger and also the rods are thicker and stronger!

[MorGo]

I haven't yet see a single T-crank that is forged.They are all cast.One look to it and it's clear how it is made:narrow sharp ridge= cast
wide ridge=forged.
All R-cranks are forged.

[NME308]

Well MorGo if it is a non forged crank then the old 3TC item can certainly put up with some serious abuse i.e. somewhere north of 800 flywheel HP.
I for one am convinced of their strength!

Cheers,
Jason