ca18det bearing-crank question

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27-04-10, 16:56
alan opel

ca18det bearing-crank question

well, pulled the sump off the 200sx today to see what the story is, bearing a nackered, crank needs a regrind. just looking for some input as to what the best plan from here, do i
A) take crank out and get it reground, then get over sized bearings
B) bin my crank and find a decent second hand std size one and get some standard size bearings.
getting my crank reground might cost a little more but would it be better? i no some say a non ground crank would be better, just looking for some input, cheers:)
27-04-10, 17:29
CillianS14a

To be honest man you might just be better of with picking up an SR for it, there's always a few knockin around for cheap. The aul ca18 would break your heart
27-04-10, 17:47
alan opel

ah no, i got this yoke handy money an dont wana spend that much on it, i no sr's are more reliable, but i kind of have a soft spot for ca's!
27-04-10, 17:58
CillianS14a

Quote:

Originally Posted by alan opel

ah no, soft ca's!

Now you said it man;)lol:p

I dont know the price of a regrind, but it could be buggered altogether, if you had to you'd pick up another ca18 for feck all on here or sxoc.
27-04-10, 18:25
Driftma

where are you based, i got a crank reground in murphys in cork for e200 including new bearings
27-04-10, 19:04
alan opel

ya im gettin same price up here in galway roughly. id rather just do the crank and bearings than change the engine, the box is coming out for a clutch any way
27-04-10, 19:23
200sx

your best bet would be get a decent crank,get it polished,new bearings and slap it back together imo...mixed opinions on reground cranks.get a decent standered one you no what your working with!!
27-04-10, 19:26
nixon001

bin it.... they never last after re-grinding...
27-04-10, 19:50
nissan_doctor

A properly reground crank will give no issues whatsoever. It will be exaclty the same as a standard sized one, you just get the bearings sized matched to the crank and your fine.
27-04-10, 20:12
alan opel

Quote:

Originally Posted by nissan_doctor

A properly reground crank will give no issues whatsoever. It will be exaclty the same as a standard sized one, you just get the bearings sized matched to the crank and your fine.

so get whoever grinds it to size the bearings?
27-04-10, 20:36
180sx

crank

in my opinion a standard crank polished and genuine graded bearings would be the best route and i think as long as a decent lad builds the ca you will have no bother with it
27-04-10, 20:38
nissan_doctor

Quote:

Originally Posted by alan opel

so get whoever grinds it to size the bearings?

Yes. The bearings come in .25, .50 etc oversized to match the corrosponding amount ground on the crank.

The damage to the crank will dictate how suitable it is for repair but if you only spun a bearing then it should be fine.

Any reground cranks that give trouble have either not be ground and polished accurately, have had mismatched bearings used or have not be assembled correctly with tolerances checked etc.

As for CA's being soft.....rubbish. A correctly built/looked after and well tuned CA is as reliable as any other engine.
27-04-10, 20:48
200sx

Quote:

Originally Posted by nissan_doctor

Yes. The bearings come in .25, .50 etc oversized to match the corrosponding amount ground on the crank.

The damage to the crank will dictate how suitable it is for repair but if you only spun a bearing then it should be fine.

Any reground cranks that give trouble have either not be ground and polished accurately, have had mismatched bearings used or have not be assembled correctly with tolerances checked etc.

As for CA's being soft.....rubbish. A correctly built/looked after and well tuned CA is as reliable as any other engine.

why are they so unrealible then?everyone cant be not looking after them!!
27-04-10, 20:53
alan opel

Quote:

Originally Posted by 200sx

why are they so unrealible then?everyone cant be not looking after them!!

there not that unreliable, its mainly the bearings that give up, thats usually because of the lack of a baffled sump and doing a heap a rings.
27-04-10, 20:58
nissan_doctor

Quote:

Originally Posted by 200sx

why are they so unrealible then?everyone cant be not looking after them!!

A properly built/refreshed one will not be unreliable.

The reason CA's in general fail is the same reason that so many SR20's do too.
Up untill they became an enthusiast car(drifting etc) they were driven as cruisers by old men who likley didn't even know they had a turbo.
They have spent the first maybe 15 years of their lives being fed crap services and sh1te oil.

Then some buys it for drifting and rags the t1ts off it and it then fails, I don't see the mystery.

CA's can't take as much power as an SR on standard internals yes, but all the CA's that fail are either original engines or badly built/tuned ones.