Oxyboxer build thread

Here's the place for info on converting to a Type V motor!
User avatar
Piledriver
Moderator
Posts: 22775
Joined: Sat Feb 16, 2002 12:01 am

Re: Oxyboxer build thread

Post by Piledriver »

12 qt is pretty std.

You don't actually have to fill it 100%..

One of the advantages of dry sump is the oil has time to deareate, but in order to HAVE that time, it can't be making another trip through the engine every few seconds, so more volume increases the cycle time.

Don't forget to plumb the pressure relief return to the DS tank, most of your oil gets bypassed to the sump there at any reasonable RPM. This saves pumping it back out endlessly to no effect.

This also allows it more cycles through the tanks baffles to deareate, as well as more cycles through the cooler before hitting the bearings
Addendum to Newtons first law:
zero vehicles on jackstands, square gets a fresh 090 and 1911, cabby gets a blower.
EZ3.6 Vanagon after that.(mounted, needs everything finished) then Creamsicle.
User avatar
grelland
Posts: 990
Joined: Fri May 13, 2005 2:47 am

Re: Oxyboxer build thread

Post by grelland »

Still waiting for crucial parts, but meanwhile, I located one on these (not that shiny loooking though... ) that I will attempt to locate inside the rear fender behind the wheel.
porsche sump.jpg
You do not have the required permissions to view the files attached to this post.
Steve Arndt
Posts: 7420
Joined: Sat Mar 10, 2001 12:01 am

Re: Oxyboxer build thread

Post by Steve Arndt »

Is that a 911 tank?
User avatar
grelland
Posts: 990
Joined: Fri May 13, 2005 2:47 am

Re: Oxyboxer build thread

Post by grelland »

yes
andy198712
Posts: 2433
Joined: Wed Apr 13, 2011 1:01 pm

Re: Oxyboxer build thread

Post by andy198712 »

cool i wouldnt mind one too! was it costly? is that the filler, breather, then feed, and at the bottom two outputs? and a red drain?

whats the red bit at the top?
User avatar
grelland
Posts: 990
Joined: Fri May 13, 2005 2:47 am

Re: Oxyboxer build thread

Post by grelland »

I dont really know what all the inputs and outputs are for, but I will have a closer look once I pick it up. I paid about $200 for it.
User avatar
grelland
Posts: 990
Joined: Fri May 13, 2005 2:47 am

Re: Oxyboxer build thread

Post by grelland »

finally some progress :)

I received some parts the other day, and I was quite excited to see how especially the Los Panchitos heads looked, and I took a couple of pictures.

First a look at the combustion chamber:
chamber1.jpg
I don't have the experience to tell whether the shape of the chamber is any good, but from what I can see, are there some quite sharp edges both in the transition between the squish area and the chamber itself, and there is also a ridge around the entire circumference of the chamber.
chamber2.jpg
My plan is to have the ridge machined down so that the squish area is flat, then use my dremel to round off the sharp edge around the chamber.

Next shot is down the intake channel.
intake.jpg
Again, I am i no position to judge the shape and size of the port, and by feeling my finger around, it really feels nice and smooth. There are a few areas where it seems the cnc did not cut into the material, so my plan is to lightly go over this area with a flap-disk on my dremel to ensure that all transitions are as smooth as possible.

I will also matchport my intakes to fit the openings in the head.

Another shot, this time down the exhaust port:
exhaust.jpg
Same comment there on the oxydized areas.

I will also remove the valves to check the valve/seat job, and also ensure that all is nice and clean prior to final assembly.

All in all, I think this looks good, and I do really look forward to seeing how this engine will perform
You do not have the required permissions to view the files attached to this post.
User avatar
grelland
Posts: 990
Joined: Fri May 13, 2005 2:47 am

Re: Oxyboxer build thread

Post by grelland »

I also ordered a CB dry sump pump, and I trial fitted it in order to check for potential interference issues between the lines to/from the sandwich plate and the line going into the pump:
pump1.jpg
pump2.jpg
Quite busy... I will have to trial fit the heads and exhaust to further check this...

Here is another shot where one of the challenges of using a dry sump pump is evident:
pump clearance.jpg
I will first try to see if I will be able to shim the pulley far enough out to clear the pump cover. But in order to do that, I need to assemble the entire shroud/generator assembly to verify that I will be able to align the pulleys properly. Alternativelly I will need to use a smaller sized serpentine pulley kit.
You do not have the required permissions to view the files attached to this post.
Passatman
Posts: 1038
Joined: Mon Apr 08, 2002 1:01 am

Re: Oxyboxer build thread

Post by Passatman »

grelland wrote:finally some progress :)

I received some parts the other day, and I was quite excited to see how especially the Los Panchitos heads looked, and I took a couple of pictures.

First a look at the combustion chamber:
chamber1.jpg
I don't have the experience to tell whether the shape of the chamber is any good, but from what I can see, are there some quite sharp edges both in the transition between the squish area and the chamber itself, and there is also a ridge around the entire circumference of the chamber.
chamber2.jpg
My plan is to have the ridge machined down so that the squish area is flat, then use my dremel to round off the sharp edge around the chamber.

Next shot is down the intake channel.
intake.jpg
Again, I am i no position to judge the shape and size of the port, and by feeling my finger around, it really feels nice and smooth. There are a few areas where it seems the cnc did not cut into the material, so my plan is to lightly go over this area with a flap-disk on my dremel to ensure that all transitions are as smooth as possible.

I will also matchport my intakes to fit the openings in the head.

Another shot, this time down the exhaust port:
exhaust.jpg
Same comment there on the oxydized areas.

I will also remove the valves to check the valve/seat job, and also ensure that all is nice and clean prior to final assembly.

All in all, I think this looks good, and I do really look forward to seeing how this engine will perform
You have some cleaning up to do here. I am glad you shared this with us all because what i am seeing here doesn't impress me.
User avatar
grelland
Posts: 990
Joined: Fri May 13, 2005 2:47 am

Re: Oxyboxer build thread

Post by grelland »

could you be more specific about what I need to clean up, or am I on the right track with the things I mentioned?
Passatman
Posts: 1038
Joined: Mon Apr 08, 2002 1:01 am

Re: Oxyboxer build thread

Post by Passatman »

Well you are on the right track those sharp edges need to go.
crankwalk
Posts: 67
Joined: Mon Nov 26, 2012 7:18 pm

Re: Oxyboxer build thread

Post by crankwalk »

Looks great!
'12 VW Jetta TDI sedan- MPG queen
'76 Ferrari Dino 308 GT4- Garage Queen (turbo boxer swap)
'73 Datsun 240Z- Autox'er
-Jay Gilling
andy198712
Posts: 2433
Joined: Wed Apr 13, 2011 1:01 pm

Re: Oxyboxer build thread

Post by andy198712 »

Maybe use a 45 degree fitting out the pump?

On those heads, how does it feel? Do the transitions between machines and raw look worse then they feel? A fluff up would harm I doubt!

What's your current thoughts on head studs now you have them?

Merry Christmas!
User avatar
grelland
Posts: 990
Joined: Fri May 13, 2005 2:47 am

Re: Oxyboxer build thread

Post by grelland »

It might be that I place the dry sump tank in the right hand side fender, so then I will have a 180deg fitting on that side, so maybe it all works out well.

Yes the transitions are nice and smooth feeling with the finger, so I have just used a mini flap-drum on my dremel, and cleaned up.

Another thing I looked at today is the bearing closest to the flywheel.

Normally, on a T1 engine, that gearing has a double thrust surface, so that the end float can be shimmed correctly, but this is how this bearing looks in my kit:
bearing.jpg
From what I can see, is the case machined so that a thrust type bearing can be used, but as I said there was no such bearing in my KS kit...

Do I have the wrong bearing kit?
You do not have the required permissions to view the files attached to this post.
User avatar
fastback
Posts: 1670
Joined: Wed Sep 12, 2001 12:01 am

Re: Oxyboxer build thread

Post by fastback »

didn't i send you the 2 thrust plates for the bearing ;)
It's all in the Haynes manual
Last edited by fastback on Sun Dec 30, 2012 11:12 am, edited 1 time in total.
Post Reply