Drax's JUN Prelude: Papa Smurf edition

[wurlycorner]

two quick hard whacks with the wood end of a hammer and she's in!

Yeah, they don't just slide/drop in like you'd hope, always need a good whack to get them over the top

I've used the same type of ring compressor you have there. They're not ideal because it's not a consistent diameter all round (there's a small gap where the end of the inside coil finishes).
I've also used this type, which was more fiddly to use in may ways, but does a better job of compressing the rings equally;

Beauty of this type is if you use a clamp that's slightly undersize, you also still end up with a thin gap you can see through, to see exactly where abouts you are with the job of inserting (when a ring is at the top of the bore, if it actually has compressed enough, how many have gone in etc.)

[4thgenphil]

correction, im using a 50mm main journal on the f22 crank, but its a 95mm stroke, sorry!

as spec'd here;
Stroke
H22A4 = 90.7mm/3.570
H22A = 90.7mm/3.570
H23A = 95mm/3.740
H23A1 = 95mm/3.740
F22 = 95mm/3.740
F23 = 97mm/3.818
F20B = 88mm/3.464

Main Journal Diameter
H22A4 = 55mm
H22A4 = 50mm (1997 Only)
H22A = 50mm
H23A = 55mm
H23A1 = 50mm
F22 = 50mm
F23 = 55mm
F20B = 55mm

So to refer ypu to my previous question, what thrust washers are ypu using?

[Drax]

So to refer ypu to my previous question, what thrust washers are ypu using?

tell you what, ill check when I get home, take one out and then let you know may even have the original packet they came in

[Drax]

@4thgenphil I present my thrust washers...

50mm, code 3C01T

the two last pistons went in last night


also I picked up these at the weekend from the scrappy, HEL braided brake hoses ... £5 from an ATR


one thing, the previous owner to this block had removed and blocked off the piston oil jet - anyone think of a reason why this would be done? I have a spare on the other block so I can replace it easily if need be.

[4thgenphil]

Was it a 2.3 prevoiusly? If so its pribably because the oil squirters contacted the pistons.

What make are those thrust washers?

You're about a week ahead of me buold wise, handy for me!

[ddoubledanny]

Coming along nice now mate

[JEBB4]

you have to get the compressor just right in squeezing the rings tight enough, lined up spot on without moving anything its squeezing and then instead of tapping it gently down (I previously was tapping gently and getting to where the first ring leaves the compressor and goes to go into the bore and it would then just pop out again between the two ) a bit at a time, two quick hard whacks with the wood end of a hammer and she's in!]

Agreed!!
I had exactly the same issue, always the last f*****g ring too! I swore alot

[Drax]

Fair enough, I got mine with the pistons. Didn't realise they were expensive compared to the standard ones.

that's impressive that those good quality ones came with your pistons

Was it a 2.3 prevoiusly? If so its pribably because the oil squirters contacted the pistons.

What make are those thrust washers?

You're about a week ahead of me build wise, handy for me!

yes the previous owner put in the F22 crank, Balance shaft removal kit and ran it with F22 rods and H22 jdm pistons the same as I will - ive just read on Rosko's site and it warns to take them out as well so your right there Phil, cheers!

I know I bought ACL thrust washers from that CPL racing, but you've made me think whether ive fitted them or not - I need to find that box they came in as I know I haven't thrown them away, and if their still inside then I still have the thrust washers that came with the block (could be standard, could be aftermarket, depends what the previous owner fitted). ill get searching, but either way I will be using the ACL ones.

[wurlycorner]

The piston oil jet is there to cool the piston isn't it? (unless I'm thinking of something different - I'm not familiar with the guts of an h22 yet). that being the case, if using standard pistons (i.e. oem spec pistons rather than upgraded material) but on an otherwise 'built' spec engine, the chances are the pistons will run hotter, so is removing the cooling jet really a good idea?
If there's some issue about hitting the jet nozzle due to the different stroke, could the nozzle not be retained and altered so that you regain clearance?
Like I say, not familiar with h22 guts, just thoughts from first principles...

[4thgenphil]

The piston oil jet is there to cool the piston isn't it? (unless I'm thinking of something different - I'm not familiar with the guts of an h22 yet). that being the case, if using standard pistons (i.e. oem spec pistons rather than upgraded material) but on an otherwise 'built' spec engine, the chances are the pistons will run hotter, so is removing the cooling jet really a good idea?
If there's some issue about hitting the jet nozzle due to the different stroke, could the nozzle not be retained and altered so that you regain clearance?
Like I say, not familiar with h22 guts, just thoughts from first principles...

they can be adjusted to fit, its a case of ending them a little. the only reason i couls see would that it would help increase oil pressure