W1ndowLicker

Rebuilding my MY97 Type R and it doesnt have any oil injectors under the pistons, Im not sure if it should or not, can anyone shed any light ?

W1ndowLicker

Bump !, Does anyone have a clue at all ?? Someone must have rebuilt one before ?

exvaux

iTrader: (1)

only closed deck blocks had under piston squirters,my typeR didnt have anything when it was rebuilt

W1ndowLicker

Well thats a weight off my mind, I was concerned that perhaps Id been mugged off with a replaced WRX engine instead of an STI lump in there with a red-top manifold chucked on !!

Excuse my n00bness but what is a closed deck block ?

silent running

Most blocks are open. I.e. there's plenty of room all round the liners and they're connected only at each side to the block. A CDB is mostly solid metal all round the top of the liners. A few holes to let water through and that's it. Obviously much stronger (and noticeably heavier as well).

W1ndowLicker

Cool, thanks for the explanation So Its pretty safe that I havent got the wrong engine then !

silent running

No problem. If you want a closer look, have a peep at my thread on Projects 'DIY Budget Engine Rebuild' and you'll see what an open and closed deck look like. CDBs weren't used even for STis for version 3 onwards.

71/200

iTrader: (2)

Not all CDB have the squiters! Ive just stripped one and there are none fitted, i assumed they all had them but obviously not.

silent running

Ah...at last we find one! I've heard talk that some early WRX blocks were closed but didn't have the jets, so here we have one.

merlin24

iTrader: (1)

And i have seen several WRX '94/95 open deck blocks with bore squirters just to confuse things even more

71/200

iTrader: (2)

Yep it came out of a 92 car mate, cracing thread your doing by the way! I did the same a year ago on my STI 1 but couldnt be arsed to put it online! Keep up the good work mate.

71/200

iTrader: (2)

Merlin i know you build engines and used to graft for ABRO(im a mate of scoobysmiff) can the bore squirters be machined into a block and where can i get the originals if still available mate?

merlin24

iTrader: (1)

Yep,ex ABRO mate and the engines i do are a bit smaller than the CV12's the block can be machined and tapped to take the bore squirters but IMHO its a bit of a pointless exercise on an open deck block - a good standard CDB can be picked up for approx. 200 beer tokens.
The bore squirters have got a check valve built into them and only work when the oil pressure is above 47psi, so the oil supply/pressure isnt affected to the mains and big ends. They are still available but dont come cheap these days.
Say hello to scoobysmiff when you see him next

Mick