Dipstick blowing out

[Kichigai]

When I push my car hard, the dipstick blows out and sprays oil all over my engine bay.

Just wondering if anyone else has this problem. If so, what have you done to rectify it?

Thanks

[GTS-t VSPEC]

I would have thought you might need better crank ventilation. I'd have thought a catch-can might allieviate the problem.

See'ya:burnout:

[blind_elk]

A mate had a similar problem in his 34 GT-R. Turned out to be a cracked piston. On high boost, the boost would force its way past the piston and pressurise the sump and spray the contents into the catch can and out all over the engine bay.

Expensive engine rebuild solved the problem.

[GTS-t VSPEC]

Kichigai,

Might want to get a compression test done, just to be sure.

See'ya:burnout:

[GODZILLA]

i had a similar problem lucky for me it was just an old dip stick. Replaced the dip stick first see how u go if that doesnt fix it looks like a piston ring problem.

[whatsisname]

Excess pressure in sump, & therefore forcing the dipstick out, isn't a good thing! Here's hoping it's a worn dipstick seal!

[macka]

Oh dear! Same thing as i had.....

Broken Ring lands so no seal past the 2nd ring and it maybe crank blowby!

I hope not mate

Good luck with your findings keep an eye for blue smoke out the back and u may have to do a compression test.

U could try to Increase the Crankcase ventilation as GTStVSPEC says if your running 15psi of thereabouts!

Sorry didnt mean to double up just talking from experience..

All the best :uh-huh:

[SeriesIIGTST]

I had problems with this also. I did a compression test on mine and found cylinder 6 was right down. We tried a lot of things to try and figure out why. I actually found putting slightly thicker oil in did the trick. Seriously, this sounds dodgy but i swear, we did tests before and after, drove it nice, rang the balls of it, the whole works and never had a problem since. It would seem that the oil was too thin and simply draining away from the valves.

Hopefully you may find this to work. I am far and away, not mechanically minded so I have no idea why this works, all i know is that's the only thing we changed on my car and the compression literally doubled back up to normal afterwards.

Good luck!

[whatsisname]

macka,

What did you (the engine builder?) put your broken ring lands down to? Detonation I'm guessing? If so what was the cause?

Sorry to hijack - but I thought it might add to the thread info.

Nice 1/4 fig's to mate! They look very familiar

[HoeTrain]

I'd agree with a shot ring. Way to much blowby. At worst a cracked piston. Just a good excuse for a stroker kit.

[rs73]

seriesII....

do you know what oil were u using back then and what about now?

[macka]

Originally posted by whatsisname

macka,

            What did you (the engine builder?) put your broken ring lands down to? Detonation I'm guessing? If so what was the cause?  

Sorry to hijack - but I thought it might add to the thread info.  

Nice 1/4 fig's to mate! They look very familiar

Thanks mate

Well the car came over with a boost controller that didnt work properly and it pinged straight away, my guess was overboosting detonation rather than lack of fuel.

Then ceramic turbo self destructed and that didnt help. soon after blue smoke....still went ok but we decided to chuck her in the shed and open her up.

sure enough 2 pistons had cracks in them.

Gotta get yaself some of them 12s whatsisname

[meggala]

yeah I had the same damageds piston not sounding good do a compression check asap that should answer the questions.

meggala

[whatsisname]

Sounds like the previous owner pushed her a tad too hard She sure is all good now though mate

Yeah every time I see your sig' it's like ahhhh (*sigh*) I'm so close

[Squizz]

Mine did that when the piston nuked itself. Does not sound good!

[SeriesIIGTST]

rs73:

Mate, I think i was running 10W40 and now i think i've got 20W50. Hope that helps!

[MotoX]

this happened to my vl.

it had a 308 v8 in it.

cracked 5 piston ring lands and pistons #8 was stoofed.

this causes huge block pressure, i blew dip stick out blew sump gaskets and oil was leaking from any hole possiable.

i decided to sell the car.