6 bolt 4age crank?

[d1 mule]

i tried searching but 68 pages came up......

hey iv just picked up the "brand new" blut top i brought off trade me and its got a 6 bolt flywheel (it takes the standard 212mm clutch tho), is this normal?? the red/black top parts motor iv got sitting here has a 8 bolt??

i no iv read something about it before but buggered if i can remember

cheers

[xsspeed]

Pretty sure from memory the bluetops had a smaller flysheel (not sure about red top bigport though?). I thought the changes occurred from redtop smallport onwards (flywheel, clutch, crank size)

Edit sorry completely misread post, thought you were talking about the smaller/thinner crank size etc. I think I am still right about the different flysheels, I have never dealt with bluetops however so this is all internet knowledge

[Mr Revhead]

if it has a 6 bolt crank then this is the first case i have EVER come across of anyone actually seeing one..... and the first evidence other than internet rumours
i wonder if its got a 4afe crank

pics etc please!!

[d1 mule]

took the sump just to have a look and all looks mint, maybe it is actually a "Brand new" motor as advirtised, only paid $305 and was advirtised as new block new crank new rods and new pstons, so was a bit suspicious.




tok the sump off and this is how it was, there is ment to be a baffel of sorts isnt there?? i never taken a blue to apart before so not sure.



ill take the hed off to make sure its got 4age pistons and throw pics up.

[2LTR Rona]

D1 - if you would like a few pics to compare the bluetop with then take a look here

http://s9.photobucket.com/albums/a55/70 ... 20Rebuild/

Pics were taken while I was rebuilding the bluetop in my KE

Re your question above, should there be a baffel in there, answer yes there should, you should have the guard part (cant recall its correct name) that sits between the block and sump, its the pan on the right in this pic

[Mr Revhead]

brand new eh?

sounds suspiciously like you have a 4age head on a 4afe block or similar.....
cant recall if thats possible though, but im thinking that rather than you having a brand new super rare crank, you have a 4afe one.....

[2LTR Rona]

brand new eh?

sounds suspiciously like you have a 4age head on a 4afe block or similar.....
cant recall if thats possible though, but im thinking that rather than you having a brand new super rare crank, you have a 4afe one.....

could be Rev, compare the two blocks and they are slightly different.....

Mine


D1's

[d1 mule]

its def had a bit of work done to it, the sump is def brand new, as are all the cam and crank seals.

and yeah everything looks new, the oil was clear as water (was only about 1L in it.

im part way through taking the head off but i dont have the correct hex socket for the head bolts so will do it later tonight.


is there anyway to tell if its a 4age or 4afe by the numbers on the block??

[Rick]

Early bigports have a 6 bolt flywheel/crank. Have seen it with my own two eyes.

[Mr Revhead]

really? coz if you had your only the 2nd person in the entire world that i have come across who has.
nothing in any toyota info anywhere mentions them...

[TRD_ZERO]

Com'on its 2009 anything could happen.....In the blacktop workshop manual it shows the flywheel (not flysheel) having 6 bolts that misprint must have originated from somewhere.

[d1 mule]

i think ts a 4afe with 4age head, as the "old" pistons that apparantly came out of this motor are slightly different, they have more of a pocket for the valves

[CAMB01]

All the 4a blocks are the same until you come to 20v 4a blocks, that have a different sump.
But yeah have only ever seen in my experience 4age cranks with 8 bolt flywheels. 4afe etc have 6 bolt.
I'd say you have a 4afe block and crank there, and they look like 4afe pistons not 4age bluetop pistons

[~SlideWays~]

Early bigports have a 6 bolt flywheel/crank. Have seen it with my own two eyes.

My 1983 bluetop (originally from my old import ae86) is an 8 bolt but who knows if it had been rebuilt or replaced.

[tex]

afe block. Later ran the 212 clutch/flywheel so no surprise there.

[d1 mule]

judging by the "old" pistons he sent me down, this would be higher compresson due to the smaller valve pockets??

[d1 mule]

cansomeone def confirm its a 4AFE block from those pics??

[allencr]

Look at the parting lines on the crank, #1 rod!
It is narrow and a casting so I'd say a low power engine, hence only 6 bolts.

It'll still run OK for a while, but don't even think of going over 6,500.

[Bazda]

7afe uses the same 6 bolt pattern and the same flywheel as the 4afe.

[TRD Man]

I think Warwick's correct.
I have never seen a 4AGE of any ilk with anything other than 8 bolt.

I have here one of those Toyota Motor Corp workshop manuals for 4A engine and it very clearly states that 4A-FE is 6 bolt and 4A-GE is 8 bolt. It does not offer any distinction for different years or versions of 4A-GE. Neither, for that matter, do any of the catalogues of the companies that make aftermarket flywheels for the 4A engines.