1990 Vert 5.3L Turbo/ 200R4 Trans/ 8.8 Ladder Bars, w/Start Up Vid.

[mefarri]

Well - we hooked up a shop vac in one of the breather lines - plugged the other one and the smoke stopped immediately.

That's a band aid solution and not the genesis of the problem.  If you blew out your knee, you wouldn't just take pain medication until it stopped hurting temporarily and then say it's fine.   Something's goofy.

[spacevomit]

Would use an oil sump & pump off of the drain, if the line routing can't be improved enough to solve it (assuming no physical obstructions).

[WannaBeFast]

I don't know guys - I am very limited how much I can troubleshoot this thing right now as the car is not at my own place.

However - First rule of V8 Rx7s club is you talk about it, and who would have thought the gentleman at the junkyard is a fellow V8 Rx7'vner himself. - so he helped me out a great deal.

I found a Volkswagen power steering pulley that has the right diameter, rib pattern and the right shaft 0.66" .

So the plan is to remove the belt tensioner and use the pump as a fixed one. Should not be hard to make and adapter plate at all. I can draw it on Autodesk and have it waterjetted.

I just hope the belt won't rub between the water pump.

I agree with Zack thought, that judging from the size of the pump this is a low volume pump - no doubt about that. The engine has 20 000 miles so it should be pretty tight.

I feel like I have to keep going forward even if this is not the solution of my problem since an engine needs negative crankcase pressure anyways. So it is still a plus.

I am just not going to spend $900+ dollars for an aftermarket kit - since those pumps have a short lifetime anyways.

If this experiment has any positive results it would be that much sweeter.

Also, I found this graph that shows the pump capability:

[WannaBeFast]

Would use an oil sump & pump off of the drain, if the line routing can't be improved enough to solve it (assuming no physical obstructions).

Definitly the next step after this. but I'll leave the vacuum pump on still.

[spacevomit]

What I mean to say is, there's nothing goofy about suboptimal drain routing (anything less than perfect) and zero vacuum causing drain problems, but if all the other turbo FCs can get a good enough routing, why not him? I would see if you can orient the line more vetically, if there's enough slack. If so I would use padded clamps to hold it. But this is a classic problem with turbos.

[zbrown]

I am not trying to be a dick in any way....bit thinking about it

 my money says if you stick that pump on you will actually pressurise the crankcase when in boost

[digitalsolo]

FWIW, my drain line looks pretty similar in layout and I have no issues with a basic vented crankcase.

[WannaBeFast]

There is no other way to adjust or route the drain hose. The only way would be to place the turbo somewhere else and that means redoing the whole hot side.

@Zack speak your mind brother - I do this stuff for fun and the reason i post this stuff is to hear the other side of the story. Just to clarify, this vacuum source would not be hooked up to the vacuum/ boost system of the intake manifold.

Vacuum pump >>> Hose >> "some kind of filter "Vortec makes one" > catch can to catch the oil >>  hose >>> top of right valve cover >> The other valve cover would have the Moroso pressure relief valve I already ordered.

So there would be two different systems. The crankcase would always should see negative pressure.

So if the crankcase gets pressurized then there is something wrong with my rings. Hope this clarifies anything - and please correct me if I am thinking this all wrong.


I wish I didn't have this problem - but I can't help it.


How much is an oil pump? Scavenger? I have plenty of room for a tank and the pump right below the turbo.

Perhaps some kind of sensor that turns the pump on when the tank is full so the pump does not run continuously.

[jax04]

I JUST SOLD MY TURBOWERX EXA PUMP! lol.  Sorry man.

But that pump is the pump id get, and i paid like 350 for it.

I know a couple of people that did what you are thinking of.  They ran both of their valve covers to the tank as well.

[zbrown]

if you keep one valve cover open to the atmosphere you won't have a problem, or one way valve

if you had the system closed and plumbed through that one small positive displacement pump you would have issues

[digitalsolo]

Edvin,

Here is your lockup wiring schematic:



Now, a few important details...    Some 2004r transmissions could have the wiring altered so that it will lock up in 2nd/3rd/4th or just 4th.   The wiring above assumes a lockup in just 4th.   Next up, you can use a vacuum switch to unlock it when you stomp on the throttle to pass someone, if you do that, it will go inline on either the IGN+ or the Ground wires to the relay, either or.

Depending on how it's wired, it may have a 2nd lead to lock up in 2nd/3rd/4th instead of just 4th, in which case you would want to do the same wiring as above, but run a 2nd wire from the 87a relay contact to pin "D" on the transmission connector, but put a toggle switch inline.   That way it can be locked up in 2nd/3rd/4th when you turn on the toggle switch, but with the switch off will work like stock (4th gear only).

If you have any questions, just give me a call (260) 246-7951.

-Blake

[WannaBeFast]

Blake thank you very much for taking your time and writing this up. It helps a lot.

As far as I know - the wiring inside the transmission is stock - untouched. Maybe i should drop the pan and check the wiring anyways.

I have already installed a relay that works with the brake switch.

However, I do have a 4-the gear lock up solenoid screwed in the right side of the transmission - that I don't know how it comes into play.



 

[rex388]

Hey man on your ladder bars is that were instant center was for you were you mounted it to the frame?

[WannaBeFast]

Well we were restricted to how long the bars were. We picked the shortest one so the instant center may not be ideal but hopefully works.

[WannaBeFast]

Hey guys - about the crankcase ventilation - What if I connect a 5/8 hose to the air intake? Do you think that could work?

I can still regulate the vacuum with an adjustable valve.