VauxSport - Vauxhall advice and chat forum

chip · Last edited by chip on Wed Nov 11, 2009 12:19 am; edited 3 times in total

IMPORTANT NOTE!
If using the standard vauxhall timing disk, then dont put the first squirter in the first bearing you get to, use bearings 2-5 instead of 1-4, as otherwise you will be cooling your timing disk, this guide was based on aftermarket management with no internal trigger disk so it wasnt an issue in that instance.

How I installed under piston oil cooling into my LET block: Big Grin

First step i centre punched the bearing tunnel for each of the cylinders:

Then drilled a hole (just like regal and wallace do) for the jets to sit in, they are an interference fit and the size of the hole is critical so i got a friend who is an engineer to create me a drill bit exactly the correct size.

Then rather than go down the route of drilling the bearings like the companies doing this normally do (they choose that route just cause its easier i guess) we decided that we would provide the oil from behind the shell rather than draining it back off the crank journal, as this way if i ever need to replace the bearing shells i dont have to start drilling them i can just install new standard ones like you would on a cossie motor or anything else with "proper" oil cooling.

Couple of pictures of my mate slotting them oil way in with a die grinder, i must admit i bottled it at this point and let him do it, as he spends most of his spare time grinding cylinder heads etc and is far more competant with a grinder than i am!
Id normally have had a go myself anyway but i didnt in this instance simply cause the block is completely finished now and the thought of scrapping it at this stage when slipping with a die grinder filled me with a fear that could only be described using your nose lmao.

Obviously anyone else who is going to copy me on these jets i would advise that this is the first thing you do before spending money on line boring etc!

Then i filed all the edges to make sure there were no sharp bits that could be potential stress raisers

The finished article:

How it looks from the top of the block:

and again (sorry, bit dark this one for some reason!)

And then just a random shot of the block looking kind of pretty lmao

vauxhall part number is 90499496

Ste · Posted: Thu Nov 16, 2006 11:58 am Post subject:

im sure i saw the same guide in tv, did you do the guide for them?

chip · Posted: Thu Nov 16, 2006 12:00 pm Post subject:

Dave · Posted: Thu Nov 16, 2006 9:53 pm Post subject:

stupid ass question time as i know nothing

but how do you control the oil pressure when youve drilled out the oil way between two holes and the bearing is in position - doesnt it force the bearing from underneath?

if that makes any sense at all Help

tathan · Posted: Thu Nov 16, 2006 10:28 pm Post subject:

won't the pressure be the same above and below though?

martymcfly · Posted: Fri Nov 17, 2006 12:05 am Post subject:

Gotta ask how you safely and confidently remove all the swarf from the block after Confused

had to do some work on a ally bike engine and the thought of little pieces swimming round haunted me for weeks Sad

chip · Posted: Fri Nov 17, 2006 1:24 am Post subject:

Same as with any machining, you are thorough.

I take all the bungs out the oil way and wash it through with parafin, i get an air line on it and i use a pipe cleaner up and down every single hole.

Time consuming business

chip · Posted: Fri Nov 17, 2006 1:26 am Post subject:

alistairolsen · Posted: Fri Nov 17, 2006 1:45 am Post subject:

never want an engine with spun shells again, proper destruction lol

lead_foot · vauxsport.com Joined: 06 Nov 2006 Posts: 66

Nice guide!! Thumbs Up

ghost_walker · Posted: Fri Nov 17, 2006 1:24 pm Post subject:

aye i know stripped amates engine that had done it, only an 8v but even after a month of prepping the block i was still find bits. chucked the block in the end. got an ecotec block that needs attention to play with instead
_________________
PERCUSSIVE MAINTENANCE.
The fine art of beating the shite out of a device to get it
to work again.

coolamasta · Posted: Fri Nov 17, 2006 6:03 pm Post subject:

Thats the article in TV isn't it, excellent guide there though mate Thumbs Up

_________________
Daily work horse: 1.8 Focus Diesel
Expensive Weekend Toy: Franken-Evo IV
2010 Cheap Vaux Track car: TBC!...

tathan · Posted: Fri Nov 17, 2006 7:03 pm Post subject:

Rs1 · Posted: Wed Nov 29, 2006 9:48 pm Post subject:

Nice guide Thumbs Up

Not quite the way i'm gonna do mine though, or should i say the way i hoping to to do mine PMSL

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Theres no replacement for displacement.

BarryGTE · vauxsport.com Joined: 11 Oct 2006 Posts: 239

nice guide that chip,i gave the guy in the machine shop my TV mag so that he could copy it with my block Thumbs Up

chip · Posted: Fri Jan 12, 2007 11:56 am Post subject:

BarryGTE · vauxsport.com Joined: 11 Oct 2006 Posts: 239

it is worth while mate keep up the good work
ps could you write some stuff about nos,just the basics.
im doing a full rebuild for around 450bhp ish using evo5,a gt28rs and some nos but need info on the parts for that,i have steve for the restwhoese kept me right so far

Milsundo · Posted: Sat Jan 13, 2007 1:35 pm Post subject:

Out of interest, whats the block painted with question

BarryGTE · vauxsport.com Joined: 11 Oct 2006 Posts: 239

proberbly hammerite mate,thats what mine is done with

sbd16v · Posted: Mon Jan 15, 2007 9:57 am Post subject: