|
Post by sobeit on Aug 2, 2008 15:54:44 GMT -5
well on my head where the chevette oil passage is is drilled but not more than an 1/8 or so then has a channel to the oil hole then goes up into the head so i believe it lines up, hopefully my head gasket comes in today and i could look over it more and supply more info. my head has holes that goes all the way down the where the water channels are on the chevette block and seems the head gasket will cover these but i have a plan to fix the little space in the back for oil drain where it meets block and the one inside the head inside valve cover. i will supply pics later today. i think my head is off a newer sunbird. ttyl.
|
|
|
Post by hydroli on Aug 12, 2008 19:45:10 GMT -5
I got the 1.8 head... Problem problem...
What won't fit..?
1- Oil passages from block to head. 2- Head thickness 3- Valve train geometry 4- Thermostat housing / water neck emplacement 5- Accessory holes (almost nothing, a small m10 hole or so) 6- Cam holder to head leaks 7- Cam lubrication 8- Flanges bolt pattern
Still feasable???
|
|
|
Post by DOCTOR FIELDS on Aug 12, 2008 20:03:54 GMT -5
Told ya it was ALOT of work.. lol ;D
|
|
|
Post by sobeit on Aug 12, 2008 20:47:32 GMT -5
1- Oil passages from block to head - think i have this solved 2- Head thickness - longer belt i will search 3- Valve train geometry - mill/machine off the carrier, i haave the cam carrier and ect from the 2.0 sunbird 4- Thermostat housing / water neck emplacement - got it off the sunbird - mold heater core to it and remove a little from fire wall. 5- Accessory holes (almost nothing, a small m10 hole or so) drill out chevette stuff? idk havent looked at this yet 6- Cam holder to head leaks - not a problem if i use 2.0 cam carrier, should have prob solved with chevette carrier too 7- Cam lubrication - problem 8- Flanges bolt pattern - use stock intake for 2.0 or w/e engine you use, make a header for exhaust.
|
|
|
Post by sobeit on Aug 12, 2008 20:47:55 GMT -5
i kno its easier said than done too
|
|
|
Post by hydroli on Aug 13, 2008 4:18:05 GMT -5
Yeah Fields, but I didn't said my last word. I'll take time to think about it later.
|
|
|
Post by hydroli on Aug 13, 2008 21:24:02 GMT -5
From my lasts observations, I'm now sure there's an easy way to do it. It takes time and I don't have much right now. A few things will have to be changed or modified but everything will work together.
|
|
|
Post by hydroli on Aug 14, 2008 20:53:40 GMT -5
Ok. I don't work tomorrow so I can take an hour to explain a few things I solved. What to do with the oil drains on the sunbird head? The sunbird head has three oil drains where the chevette one has water passages. To avoid oil and coolant from mixing, the oil drain has to be plugged from cam plenum to head gasket. A machined aluminum insert will go in the drain hole and be tig welded on the bottom to avoid water from boiling in an eventual gap between casting and insert. Gas pocket means poor cooling effect, if you follow my mind. Unfortunately, the oil that was passing by the pocket at the head surface had a cooling effect on the exhaust valve area of combustion chamber. Just plugging it may makes it a problematic area. Therefor, the pocket will be drilled to let the coolant circulate in the pocket area, where the chevette usually has water passages. Correction: ***I missed something where I explained how I was going to convert oil draining pocket into coolant passages. There is one of the three pockets that is aligned with a threaded hole for the intake. The drilled hole for the coolant has to be closer to the original oil draining hole, in the middle of the pocket.*** That's it for today
|
|
|
Post by sobeit on Aug 14, 2008 22:21:07 GMT -5
just about what i was thinking. would have to leave the top hole open i would believe b/c if all the air is not out this will cause gases to be made and would end up doing something bad, like a tooth that has been filled and has air pocket with all the heating and cooling tooth either bursts or the filling pops out.
|
|
|
Post by hydroli on Aug 14, 2008 22:30:38 GMT -5
It's to allow coolant circulation, that's it.
|
|
|
Post by sobeit on Aug 14, 2008 22:32:32 GMT -5
no the oil hole you are pluging not the one you are drilling
|
|
|
Post by hydroli on Aug 14, 2008 23:01:46 GMT -5
There will be an insert all the way through, welded at the head surface end. Leaving it empty would make oil tu burn in it... detail.
Stay tuned, there's more to come in the next weeks.
|
|
|
Post by hydroli on Aug 17, 2008 0:26:41 GMT -5
|
|
|
Post by sobeit on Aug 17, 2008 8:05:30 GMT -5
you can use a tube with small holes drilled in it across the lenght of the cam, this is how they water the track at my derbys. attach it to a braided line or something and put it through the valve cover down to your oil hole in the block.
|
|
|
Post by hydroli on Aug 17, 2008 8:51:32 GMT -5
I have my plan dude
|
|