Different cross flow cranks

[Panko 2,482]

Hi guys, I have 3 cross flow cranks, 2 are the same, and 1 has a slightly different rear flange. I know one will be earlier version, one later, but i got no clue which one is which. please help...

 

 

 

 

 

 

 

 

 

 

[gerg 10,871]

The last one looks to be the later one. Metric flywheel bolts I believe same as e-series and same seal too. Not sure on compatibility with earlier blocks in regards to seal design, etc.

[Panko 2,482]

Thanks mate. I have an 84da block that im keeping, and selling an 83da block so im hoping to work out which crank goes with which block. I know there is two different rear main seal types, im thinking the crank might have something to do with that too.

[PRO250 1,506]

The crank with the flange will go in the 84 block

The other ones look to be either a rope style one or as said a later metric crank

Easy way to tell is try and screw a imperal flywheel bolt in it, if its a no go its a metric crank, if it goes in its the old rope style crank

Selling a crossy in bits? unless its something real good you will find a skip is the best place for it but that's only my views

I see you don't have the main caps on the block? do you have the caps that match that block? no caps the block will need line honing this is another cost most would not do in a basic build always keep the main caps that belong to that block you cant mismatch them 

So your not boosting yours now? 

[Panko 2,482]

Cool thanks.

 

Yeah its a long shot selling it in bits, but the reason im trying to sell it together is because it was built and fitted to an xe as a tuebo engine. Unfortunately i dont have the rest of the car to go with it.

 

I am boosting mine eventually, but i have another 84DA block which has never been machine. It was a running engine, pulled apart, bit yeah still all standard bores. So im probably going to turbo my engine initially, and i have a complete 84DA engine that i can build up when im ready.

[slydog 7,873]

There is 3 different Xflow cranks. Early rope seal,large single seal and a small single seal. The small single is found in the 84da and large is 84DA on.

[ando76 4,354]

The one with the cross hatches and flange is an early rope seal crank.  They are the lightest of all the cranks.

 

The other ones are neo - one piece seal.  the metric ones run a different (smaller from memory) neo seal to the imperial ones. 

 

The crank with the flange in it will only go into an early rope seal block.  The rear main cap has a recess in it for that flange.  Later blocks do not have that recess so the flanged crank will not go in unless you machine off the flange.

[Panko 2,482]

thanks heaps for that Ando. That answers that. The 83DA block i have for sale has that recess in it, but didn't have any idea what it was for. 

 

i knew there were two types of seals, because obviously my XF runs the single piece style. 

[slydog 7,873]

 

i knew there were two types of seals, because obviously my XF runs the single piece style. 

 

A not "the" cos there is 2 sizes...small and large.

[Lord_fahrquhar 2,580]

One had some round things with attach to things going up and down . The other thing has some things that go up and down which pushed the round thing around.

[ando76 4,354]

both had stupidly bad harmonics when revved past 5000rpm