TD: Block oil drain?

[monomer]

Anyone have pics of a tapped block for the turbo's oil drain?

I really do not want to drill the pan, I plan on doing autocross and the drain should never have to fight the oil in the pan.



Just need to know where to drill/tap

[theman53]

IIRC the 1.9 aaz and all the TDI's have a tapped block from the factory. Maybe find a pic of them or I could get one this evening.

[burn_your_money]

They changed a lot on the block of the 1.9s and the area is raised up. I would sooner tap the pan than weaken the block. If you add the AAZ breather to the front of the engine where the lift pump is designed to go you shouldn't have any problems. I don't think you would have any anyways though unless you overfill the pan.

[BlueMule]

Mon, BYM is correct, the drain is above the oil level. I guess it could slosh high enough in a turn, or braking condition to get up around the drain, but never enough to for a long term blockage condition. I also agree that drilling into a block may not be the best idea, especially if you are pushing the engine, (govoner mods etc). Blocks flex, twist and do all sorts of strange things when design limits are pushed.


BlueMule

[monomer]

Mon, BYM is correct, the drain is above the oil level. I guess it could slosh high enough in a turn, or braking condition to get up around the drain, but never enough to for a long term blockage condition. I also agree that drilling into a block may not be the best idea, especially if you are pushing the engine, (govoner mods etc). Blocks flex, twist and do all sorts of strange things when design limits are pushed.


BlueMule

Noted, I'll just go with a braided line to the back of the pan.


Now, to source the fittings for my t25's drain/inlet...

[theman53]

As much as I hate to endorce them Black forest industries is selling a pan that has 1/2 NPT female already welded to it. I would do that route as the pan I have likes to leak around where I welded. Good penatration up near the top of the pan pulled it down quite a bit.
BTW I also adapted JIC fittings to work with everything else and they don't leak a drop. Very reusable.

[bajacalal]

I believe the mk3 oil baffle will fit in place of your stock oil baffle. The newer is larger and flatter and should help control the oil better in corners.

[monomer]

As much as I hate to endorce them Black forest industries is selling a pan that has 1/2 NPT female already welded to it. I would do that route as the pan I have likes to leak around where I welded. Good penatration up near the top of the pan pulled it down quite a bit.
BTW I also adapted JIC fittings to work with everything else and they don't leak a drop. Very reusable.

got a link for that pan?


JIC or A/N flairs all the way.


edit: found it http://yhst-1918367471896.stores.yahoo.net/hdturbooilpan.html

[theman53]

JIC are easy to find at most any hydro shop. The A/N fittings that you get from summit are all aluminum peices of crap IMO. They need not make a fitting you are trying to reuse out of aluminum that is so soft. I have seen they make some differently but are even more expensive.

[monomer]

JIC are easy to find at most any hydro shop. The A/N fittings that you get from summit are all aluminum peices of crap IMO. They need not make a fitting you are trying to reuse out of aluminum that is so soft. I have seen they make some differently but are even more expensive.

I'm in and out of a parker store once a week for work.


They sell earl's there, but I'm going with normal, industrial NON RED AND BLUE stuff.


I've seen plenty of JIC fitted stuff fail. Usually hardlines without proper support and 90 degree bends. Granted, everything at the shop is 2000+psi. I think It'll be proper on the car....

[nathan_b]

911s use an electric pump ?fuel pump? for suction of oil out the drain

[levi20AE]

i took the pan of and drilled a hole in the back of the block on my 1.6NA when installing a factory turbo setup.  I used a stainless NPT to -10 AN fitting as a oil return into the block.  It works nice because you can use the factory hardline portion of the turbo return line to weld a steel -AN bung on to.

[Toby]

The way to prevent welded bungs from leaking is to weld them from the outside and then braze them from the inside to seal any porosities. Or just braze the bung to the pan.