removed my breather kit today and hey presto all is fine.

1. idle stable 800 rpm no longer erratic, was between 900 and 1200rpm.

2. no more high vacum from under the oil filler cap revs dont die back to 500rpm when removed.

3. engine is now again quiet no noises no tappet noise.

4. vacum gauge in the car now sits where it used to 1 mm from the full point. not just below the next line down.

 

ive never been convinced about this kit. once fitted little things started happening, i just hope it hasnt caused any damage to my engine.

 

to those of you who havent fitted kits yet take note of the 4 points above. even take readings off vacume gauge on tickover, check for vacum under oil cap as this caused hydralic tappets to be noisy (before and after) install. to see if this made a difference.

 

it is now going in the for sale section free to anyone who wants it just pay for p&p.

 

i may have had a faulty one who knows.

i am happy now though its sorted.

hows everyone elses kits.

 

 

certainly does make interesting reading.

 

are you _positive_ everything was fitted correctly with the valves the right way round, on the right side etc ?

 

just want to confirm that it was fitted according to instructions provided

 

yes craig all fitted to the car as per instructions. at one point i rang the company up to make sure that i put the restrictor in the right place, i consider myself as a bit of a perfectionist when fitting after market goodies, besides it is pretty straight forward. i even had to change some of those clips for jubilee ones as i wasn't convinced they were air tight.

cheers,

that was exactly the answer i was expecting from you

in that case, i am almost wishing mine never turns up, except for the fact i paid money out on it

thought it might of been that! had a think over the weekend and it makes sense cos you was get a vacume. the brether needs to breathe both ways not jus one (as in your case).

I would send a letter to whoever you bought it off informing them that you will be fowarding any bills as result of oil starvation!

hope everything goes well in the future for you.

kris

p.s tasy car, keep up the good work

 

------------------

kris i am waiting to see if anyone else has the same problems with there kits. if they ever turn up. i know of at least two other people who live close waiting for theres. even though they dont even want them now.

six months really does take the piss.

maybe a silly question, but why not cancel ur order. I don't see why Johnny can't cancel it with his supplier. As you said 6 months??????

 

Vijay

Hmmmmm just starting to wonder about the oil starvation i had that resulted in Spun bearings And turbo failure.

(although ill researve judgement until i know for sure).

 

But to state i had one of these kits before most here and i have been saying since day one it is a piece of shit, yet i got shot down time after time, will be interesting to see when other people have problems with it.

 

[This message has been edited by 300z (edited 23-04-2002).]

I'm not trying to defend the breatherkit, since it's a piece of shit anyway and I wonder if it does what it's supposed to do and help to protect the turbo-seals, but it can't be the only cause for the vacuum in the oilcarter.

 

Lack300, did you also check if your PCV-valves are working correctly ?

 

-Eric

lymon.

i would have checked them if my car was still running like a sack of shit, once breather kit was removed.

in my mind i had no doubt whatso ever this was the cause, which is why i removed it.

two days later now and at least a 100 miles and the car is behaving beautifuly, hasn't missed a beat. no funny noises and perfect tickover. which was how it performed before kit was fitted.

 

OK...the breatherkit is going down..

This evening we tested the same things as lack300.

We tested this on 4 cars (2 with breatherkit, 2 without).

The 2 cars with breatherkit had a high vacuum under the oil cap and oilpan (you could hear hissing when the dipstick was removed)

The other 2 cars without the breatherkit didn't have this.

 

This is very serious !

high vacuum in the oilpan can lead to severe engine damage, due to oil starvation.

You can probably guess what we'll be doing with the kit..

 

This kit has been a disaster from the start and we're going to try to get a refund...(through legal action if necessary)

 

-Eric

 

[This message has been edited by lymon (edited 04-05-2002).]

im glad you done the test lymon now i know it wasnt just me. im gonna be giving Turbo technics a ring on tuesday. lets see what they have to say.

where did turbo technics get the design for this kit, is it a copy of some other breather kit? or is it somthing that they thought might work. are there any other kits on the market.

Hmmm i wonder if my engine failure had anything to do with this fucking stupid piece of crap

 

Ball brearing turbo failure due to oil starvation

And the rest was caused by the turbo.

 

BUT THEN I DONT WANT TO SAY TO EVERYONE (I TOLD YOU SO) About this kit. Just go and look at previous posts about it.

Complete piece of shit.

I don't know if Turbo Technics actually ever tested this design on a real VG30DETT-engine or just on paper and based on theories that would probably work for other engines.

But in the very extensive instructions manual (1 sheet of paper) that comes with the kit they state that the kit is supposed to create a vacuum when 'off boost' and when 'on boost' the normal crankcase ventilation is restored.

Only problem is that the engine is 'off boost' 90% of the time.

What you actually would want is that the airpressure in the oilpan is lowered for a SHORT period of time and only when the engine goes from 'on boost' to 'off boost' to prevent that oil is blown through the crankcase-vent hoses into the intake side of the turbo..

Maybe it works (better) if you connect the oneway valves to the recirc hoses, but not in it's current design....or I'm missing something that Turbo Technics thought of when designing this kit.

 

I'm now looking into creating something that is similar to the breatherkit that Stillen sells (with small airbreathers and an oil catchcan) ....it looks to me that's a much better design.

 

 

 

[This message has been edited by lymon (edited 06-05-2002).]

interesting reading on the subject of 'leaking' seals and crankcase ventilation:

 

http://www.usdieselparts.com/turbochargers/turbo3.htm

Originally posted by lymon:

interesting reading on the subject of 'leaking' seals and crankcase ventilation:

 

http://www.usdieselparts.com/turbochargers/turbo3.htm

 

This part is intereting.....

 

Engine Breathers

 

Also, oil leaks in a turbocharger may be the result of the crankcase breather system. Either atmospheric or positive ventilation systems may not be large enough to handle the somewhat higher "blow by" which exists in turbocharged engines. It is recommended that the engines breather capacity be increased when a turbocharger is added. Even when the systems capacity is adequate, the elements in the systems breather will become partially clogged through use. Also, the breather may become clogged with mud or sludge in winter or under snowy and icy conditions. These conditions will cause positive pressure to build up in the crankcase. If this occurs, it will restrict the oil from flowing down the drain hose and into the crankcase, causing it to back up to the bearing housing.

 

 

 

Lymon that link was very informative,I especially was interested in the mention of restrictive air filters as my "occassion" problem was not always there and appeared after I had fitted a series of mods and one in particular is a K&N air filter which I got from a crashed zed in a breakers, the unit was a little damaged and I straightened it out,I am wondering now if it`s reducing the air at tickover and causing a partial vacuum across the turbine seal and could be the cause of my occassional smoking at tickover??? will be defo doing some tests in this area!!Strangely I always thought the filter was smaller than I would of expected it to be.

 

Jeff TT

 

[This message has been edited by Jeff TT (edited 06-05-2002).]

dont wanna sound dumb , but what is one of them thinggys youre bangin on about ?

 

Try this link. Geoff http://www.300zx.co.uk/forums/ubbforum/Forum1/HTML/003264.html