My Diesel Let me down!

[Golf Loon]

If it turns out i need to re-ring her.. Then assuming it is so bad that i need pistons as well, how much will i be up for, and am i better off hitting loon up for one of those 1Z engines that he's got coming?

I only have one left and its 8 weeks away

I dunno about the problem you have, I know bugger all about diesels.
Good Luck getting it sorted.

[smithy010]

Crank case pressure is only vented through the cam cover breather. But it mainly comes from the crank case. You have ventilation around the cylinders that vents back up into the head (this is how some of the oil gets from the head back to the sump, too).

On some high performance engines you will see vents on both the crank case and the cam cover, but that is mainly to alleviate the additional pressure (the better you vent it, the less hp you lose). Whether the vent is in the block or the cam/tappet cover is mainly due to the application the engine will be used for and the components fitted.

Thanks. That answers my question.

[gldgti]

probably cracked a ring or two mate, that would account for the suddenness.

remember that once the rings are worn, they get thinner in x section so o become weaker..... well you know that...

[smithy010]

Yeah, that's reasonable...

It looks like i'm on shanks' pony for a while, while i pull her down and work out what's going on..

[smithy010]

Question:

If i got one of loon's 1Z's, would it hurt to run it turboless for a bit while i save up for a turbo?

Would i get issues with glazing or anything because of the lack of boost?

[jets]

Compression tests are done through the glow plug hole with the fuel solenoid disconnected and at full throttle.
Sorry, Smithy...It doesn't look good. For that much oil going into the air box it has to be more than just rings. Do you have the VW modified breather?

Just to clarify a point, compression tests are also done through the injector holes.If you remove the injectors you will need to replace the sealing washers. You will probably need to remove the pipes to get access to the glowplug holes anyway. The kit I have just bought has adapters for both.

[cetane]

Your kit sounds good. Where did you get it? How universal is it and will it test motors other than VW, Merc?
(Either way, the fuel rail has to come off, however if you test compression through the injector holes at least you don't need to take off the glow plug rail. But you will need to renew the heat shields.)

[jets]

I bought my kit from this guy. I paid $49.50 as a Christmas special. I finished up buying two [One for a friend] & halved my postage cost.

http://www.toolaus.com.au/catalog/pr...1a783a00f58ad5

It's possible to buy cheaper kits from the States but the freight is too expensive. I don't know what other engines the kit fits but it fits the VW.
If you have a special purpose you will have to give me the thread details.
If you take out the injectors, you can watch the glow plugs heat up to check them. The heat shields cost $2.50 ea.

Here are some more details for the same kit from a different seller.

http://cgi.ebay.com.au/Brand-New-Die...742.m153.l1262

[gldgti]

you wouldn't have a problem running a 1z without a turbo - infact that engine was sold (under different code) in some mk3's as SDi - non turbo direct injection diesel..... why? who knows? the same reasons vw brought out mk3's with 13" wheels, why my car came out with solid rotors on the front and drums on the back, the same reason i had a doughnut spare..... some marketing guy thought it was a good idea i suppose...

...

winge over.... cheers

[smithy010]

I guess it will already be worn in, being second hand, so i won't need to bed the rings like a new motor... The bores are probably already glazed from being babied in the UK...

Does anyone have any ideas on how these puppies perform? What's the output? what sort of fuel economy? are they reliable? I would assume there would be less blowby problems due to the lower compression ratio, although probably not the case because with turbo, pressures are as high anyway..

Aydan, i'm guessing you can shed some light on this, seeing you own one and you're an engineer, or at least should be by now


Smithy