Fitting Xu10 Sump And Windage Tray On 1.9 Mi16

[Anthony 1,003]

Been having a think over the past few days of what to do with the sump on my new 1.9 Mi16 I'm building to try and atleast reduce the oil starvation problem to a safe level for road and occasional trackday use (on road tyres)

 

My plan was to basically use the XU10 trapdoor sump, oil pump baffle, and windage tray which whilst not a perfect solution is certainly cheap to do and should be sufficient for what I need. There's basically three main issues I've thought of with that plan, namely:

• Sump depth - all XU10 sumps are "full depth" unless then shallow XU9JA/XU9J4 sumps that also use the spacer
  
• Sump spacer / windage tray interference - windage tray I'm pretty sure is going to foul the spacer plate pretty badly and looked like a lot of work to reshape the windage tray to fit with the spacer (can't remember who did it now - Petert I think?)
  
• Main bearing cap bolts - I believe that XU9 and XU10 main bearing cap bolts are different threads and hence not interchangeable, which rules out getting the "proper" bolts that have the threads to screw the windage tray into.
  

The obvious solution to the first two problems is to simply remove the spacer plate and then the sump is the correct depth and the windage tray won't foul, but how critical is that stiffner plate in the real world? I mean, clearly the 1.6 GTi and lower spec 1.9 8v's get by fine without it, but I can't help by think that Peugeot must have put it onto the XU9JA and XU9J4 lumps for a reason.

 

As for mounting the windage tray, I was thinking of getting smallish bolts welded to the tops of the main bearing caps for #2 and #4 mains so that they act as studs, and then securing the windage tray to them (spacing if required to clear the crank) with some threadlocked nuts. Would that work OK, or is there some issue with welding to what I assume are high tensile bolts?

 

Mounting the oil pump baffle is a straight fit so not worried about that.

 

So, would this work and be a reasonable solution to Mi16 oil starvation for what is a mainly road use car?

[petert 588]

Too easy. Read this, the answer is on page 2, manufactured on a CNC mill to ensure accuracy. Don't forget you need to extend the pickup 15mm.

 

http://forum.205gtidrivers.com/index.php?s...99entry471999

[Bonzai 2]

i asked this t'other week, but still inconclusive to me.

 

http://forum.205gtidrivers.com/index.php?s...pic=42746&st=80

 

i'm about 80% made up that im going to run without the spacer on my mi, but i wasnt planning on using the windage tray thing either

[James_R 3]

Might be an idea to use the spacer/stiffener plate if you're intending to run TB's and cams though ben

[Anthony 1,003]

Too easy. Read this, the answer is on page 2, manufactured on a CNC mill to ensure accuracy. Don't forget you need to extend the pickup 15mm.

 

http://forum.205gtidrivers.com/index.php?s...99entry471999

I'd remembered that thread and the way you'd done it in the past (hence the comment above), but wondered if there was another way of doing it that didn't require access to machining tools - I can get someone to weld steel easily enough for the studs to mount the windage tray and then without the spacer it's a straight bolt on job with no mods required.

 

$150AUD (plus what, $30AUD for the pickup spacer?) for the setup you had pictured in that thread isn't a bad price certainly, but postage and customs for sending the parts and then returning the exchange I suspect is going to make it too much of an expensive option

[jacobs53 0]

my personal opinion, would be to disregard the sump spacer plate on the mi16 engine. I don't understand why the psa group used the spacer to be honest, its not like the block flexes or twists.

 

An idea I had a while back is to create another trap door on the opposite side of the pump pick up which swings in the other direction, hence if you turn left one side is open the other is closed closed and visa versa. The windage tray is a good idea and only 5.00 for peugeot, so well worth it. Make sure you get the studs welded onto the main bolts by TIG welding not MIG, as the HAZ zone is decreased using the TIG method.

 

lee

[Bonzai 2]

what does the windage tray do?

[petert 588]

my personal opinion, would be to disregard the sump spacer plate on the mi16 engine. I don't understand why the psa group used the spacer to be honest, its not like the block flexes or twists.

 

How do you know? Have you put strain guages on the block and measured deflection under load?

 

The windage tray stops the crank picking up the oil. It separates the two areas.

 

You can't put a door on the other side as the pump body is there.

 

I'm afraid if what I've suggested isn't enough protection for you, the only alternative is dry sumping. It certainly is enough to stop oil surge on the other side of the world for 95% of the track cars. If you're good enough to induce oil surge with this setup then you have a very competitive car.

Edited April 7, 2006 by petert