How to determine notches regarding head gasket type - page 6 - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.
-
#75 by Mark(The Miser)UK on 17 Feb, 2014 10:04
-
This argument is kind if metaphysical. It is no more relevant than arguing about how many fairies can dance on the head of a pin.
Argument promotes understanding... Reinforcement for those who already understand, and understanding for those who don't.
Has anybody here actually put in a 3 notch when a one notch was called for?
Well I have. I did that once when I did not have the correct "notch" in stock. Fresh motor that I wanted to put some miles on. I ordered the 1 notch and drove the car for over a month with the 3 notch before I swapped out the correct gasket. I was expecting more power, less smoke, better starts, and better mileage. I can not attest to cold start performance because it was not cold here then, but I noticed NO DIFFERENCE. Nothing, Nada.
It did not feel faster, did not start better, did not smoke less, and the fuel mileage did not go up.
So I ask you how important is it really?
Dictatorial stifling of debate, by the use of the Drone like weapon of banning everyone who doesn't agree with the party line or 'The One' smells of Communism, Fascism etc, and we don't want that, do we!
Re the thicker than necessary gasket experiment:
Cold weather may have shown something.
Having a fresh engine, probably meant that even the lowered compression was better than an un-rebuilt, but otherwise functional high mileage engine...
Still, useful information. -
#76 by TylerDurden on 18 Feb, 2014 04:57
-
A 1-notcher is ~.87mm thick, a 3-notcher is ~1.02
V1 / V2 = rC
397 / 17.26 = 23.0
398 / 18.28 = 21.77
21.77 / 23 = 5.3% change
Considering other variables, 5.3% change in compression ratio might be hard to detect.
Compare to a midlife engine: let's say 350psi... 350/450 = .777 or 23% change -
#77 by theman53 on 18 Feb, 2014 05:10
-
A 1-notcher is ~.87mm thick, a 3-notcher is ~1.02
V1 / V2 = rC
397 / 17.26 = 23.0
398 / 18.28 = 21.77
21.77 / 23 = 5.3% change
Considering other variables, 5.3% change in compression ratio might be hard to detect.
Compare to a midlife engine: let's say 350psi... 350/450 = .777 or 23% change
Well not according to what sauerkraut had on his engine that was fresh. The HG made for harder starting and was fixed when he went to the 1.9 head *with larger swirl chambers* and the correct gasket. Page 6 of the link shows his problems. -
#78 by TylerDurden on 18 Feb, 2014 07:13
-
Ja, I don't doubt that... I'm mostly throwing numbers into the mix, particularly comparing HG volume vs wear.
We're dealing with nuanced assessment in a dynamic environment, and opinion is surely gonna vary.
-
#79 by 92EcoDiesel Jetta on 18 Feb, 2014 07:38
-
I only asked you to prove what you said man..
Enough. You are putting words into his mouth, he never said anyone here was not worth his time. Last warning.
You said no because we are not worth your time..
Why do you post here then??
Can a moderator give warning to another moderator? Is there a moderator pecking order?
8v was demoded a few months ago. His entire account deleted hence his new account has a "!" at the end.
Really!!! What happened?
Nobody want to tell me what happened? What happened to 8v-of-fury's posts? They seem to be all gone. Did he do a Libby and deleted every post he ever made? That would be a shame since he contributed a lot to this forum. Is that "feature" still available? What's next? Is Libby going to do a second round of total delete? -
#80 by TylerDurden on 18 Feb, 2014 15:24
-
All the fracas got scrubbed.
He globally deleted?... well, that sucks.
Edit: seems some stuff still there.