What happens when a 3800 blows?

[RobFRC]

So I was beatin on my car a little bit last night for my bday thinking :gives:

This morning I go start my car, pop the hood for no reason, and see that oil sprayed all over the hood and got all over the motor.

Car is running fine, no ticking or knocking, temps were normal for my 35 mile drive to work just now, but I know its motor oil cause I checked it yesterday, it was full, then seen this oil explosion under the hood, and now it was 1/2 down on the dipstick

any suggestions on what it could be? seemed like majority of the oil spray was around the back of the motor.

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[Turbocharged400sbc]

more to the passenger side im guessing?

likew the front main seal may be leaking and the pulleys and belt are slinging it all over

 

[RobFRC]

more to the passenger side im guessing?

likew the front main seal may be leaking and the pulleys and belt are slinging it all over

centered on the hood right where the middle bracing is near the back of the hood, I'll have pics soon if that'll help.

The belt/pully area is clean.

 

[RobFRC]

 

[Turbocharged400sbc]

did you do any work recently in the last coule months?

where your describing isnt very likely unless you left the oil fill cap off or maybe its missing the sealing Oring

 

[RobFRC]

did you do any work recently in the last coule months?

where your describing isnt very likely unless you left the oil fill cap off or maybe its missing the sealing Oring

I did HV3, tune, downpipe, lowering kit all like 6 months ago. Had a cone filter on it before and just switched it to that crome intake tube piece yesterday. Couldnt imagine that having much to do with it.

Its too far back to be oil cap.

 

[Turbocharged400sbc]

look in between the rear VC and the rear of the LIM and look for an open bolt hole
i cant see it in the pic but if you remove and delete a couple "factory optional" brackets and shit that get into your way you can uncover one 10mm thread hole that can spray but i just saw your reply and im wondering if you reinstalled the cranckcase fresh air supply hose from the nipple behind the TB to the intake tube between the TB and maf

 

[RobFRC]

im wondering if you reinstalled the cranckcase fresh air supply hose from the nipple behind the TB to the intake tube between the TB and maf

I did not. How fucked am I?

 

[smug]

Did you just cap that nipple or leave it open?

 

[Turbocharged400sbc]

well unfortunately you may well be completely screwed.....its a cunt cleaning all that oil off and installing a 3/8ths rubber hose....

your fine, ya just goofed....seems most will just cap it and then complain about a sqeal

 

[RobFRC]

It is capped? wtf

I figured it was just some emissions shit and capped it, and if it was more important I would have thrown a code and figured something else out.

Its capped and no oil directly around it.

 

[Turbocharged400sbc]

its capped and your building crankcase pressure at WOT and oil is probably spraying out around the VC gaskets as blowby pushes it all out.

that hose and nipple supply fresh metered air to the crankcase/pcv system....right now you only have the suction side working...
i suprized you dont hear a nice squal/screetch as air is sucked past the engine seals

 

[RobFRC]

its capped and your building crankcase pressure at WOT and oil is probably spraying out around the VC gaskets as blowby pushes it all out.

that hose and nipple supply fresh metered air to the crankcase/pcv system....right now you only have the suction side working...
i suprized you dont hear a nice squal/screetch as air is sucked past the engine seals

I should be fine to drill a new hole into the intake tube and re-install that breather hose and problem solved? or is there an alternative

I was looking at older gen grand prixs for DIY intakes and some of them just had a cone on the TB, no breather hose or maf.

 

[Turbocharged400sbc]

the early cars have the passage internal to the TB, the DBW TB does not so the passage stops in the UIM and runs through a hose to a spot upstream of the TB blade and downstream of the MAF

on andy's 04 compG i just drilled and tapped the TB for a nipple so we didnt have to drill his intake tube so thats a viable option...hell im sure i have one on the shelf thats already drilled and tapped and just needs a 1/4npt to 3/8ths nipple and a hose

 

[RobFRC]

on andy's 04 compG i just drilled and tapped the TB for a nipple so we didnt have to drill his intake tube so thats a viable option...hell im sure i have one on the shelf thats already drilled and tapped and just needs a 1/4npt to 3/8ths nipple and a hose

Lemme know if you do and what you want for it. I'll keep that option in mind.

If IM doing the drilling though, I'd prefer it to be on a $8 intake tube vs. a $100+ throttle body

 

[Turbocharged400sbc]

i have a bucket of TB's im saving for when the TPS tracks start failing on em in a few more years

 

[RobFRC]

i have a bucket of TB's im saving for when the TPS tracks start failing on em in a few more years

Is that when my cars gonna get stuck at WOT and end up wreckin

 

[Turbocharged400sbc]

i would rather have a fitting go into a 3 3/4" diam area than into a 3" dia tube

every little bit of airflow restriction hurts....ll check my bucket of TB's in a few

for now just remove the cap when driving it...it will idle like a slight vac leak but it will learn how to run just fine and youll no longer spray oil.

btw if you didnt hear a skreech with that capped and the oil appears to come from the VC edges then its time for VC gaskets

 

[Turbocharged400sbc]

unlikely to stick at WOT it is a dual trace sensor with rising and falling rate tracks to allow for a rationality check.

but a TPS for a drive by cable tb is 35$

as you pointed out...DBW is not cheaper

 

[RobFRC]

i would rather have a fitting go into a 3 3/4" diam area than into a 3" dia tube

every little bit of airflow restriction hurts....ll check my bucket of TB's in a few

for now just remove the cap when driving it...it will idle like a slight vac leak but it will learn how to run just fine and youll no longer spray oil.

btw if you didnt hear a skreech with that capped and the oil appears to come from the VC edges then its time for VC gaskets

What about those little mini cone breather filter things, couldn't I just put one of those on the nipple on the intake manifold and be fine?

 

[smug]

You will still be letting in un metered air into the engine and it will throw off your fuel trims. It's cheaper and better to just run a hose from the nipple to the air intake tube between the maf and throttle body

 

[RobFRC]

You will still be letting in un metered air into the engine and it will throw off your fuel trims. It's cheaper and better to just run a hose from the nipple to the air intake tube between the maf and throttle body

That'll be the plan then.

Thanks Turbocharged400sbc and smug. I'd be up a creek without a paddle without you guys and this forum.

 

[Turbocharged400sbc]

i found the TB with the drilled and tapped hole...its even painted silver just trade ya even if ya want it

 

[Turbocharged400sbc]

lets not gloss over the fact that you didnt do yer homewerk :trollface:

 

[Turbocharged400sbc]

ps please put LIM and VC gaskets on your list as well as a dexcool delete mod