When you guys say max allowable depth for machining the heads! Who came up with the max allowable limit? I would like to see in writing from international Navistar or Ford or Blue diamond where it is that the heads can be machined to this depth or even machined at all. Sure any machine shop can come up with a number and machine the top of the valves to match but I have never seen in writing from ford or international that heads can be machined in fact they say not too. They give a proper way to check heads and clean them im not sure if people are to lazy to clean them the correct way because it takes time i don't know! I have yet to have one set of heads come back that headgaskets have failed after doing proper cleaning of block and heads and checking flatness BY THE BOOK! NOT THE LENGTH OF THE HEAD!!!! I take time prepping my heads and am very meticulous with my straight edge checking the correct locations that international THE MANUFACTURER - MAKER - DEVELOPER of these parts has layed out in black and white on how they want them checked. I do not care or want to hear personal opinion on this just fact. I would rather have a head with all its meat than have it weakened from removal of material. I would like to see this so I can learn.
1) spec sheet from International on max allowable limit to remove?
2) No OPINIONS or I THINK why every head has to be machined WHEN THEY PASS WITH STRIAGHT EDGE AND CAN BE CLEANED PROPERLY!
3) WHY all the head jobs I have done "I have stopped counting" by the book cleaned by the book have had 0 issues!!! and none have been machined!
4) Is it the fact that it makes people feel better to have them machined and have metal removed in most cases that is NOT NEEDED!
5) Because a head wasn't machined because the proper checks where done and it was determined that machining wasn't needed DOES NOT MEAN THE JOB WASNT DONE RIGHT or everyone one of my hundreds of head jobs would have come back.
ON the other side of the coin I cannot tell you how many horror stories ive read on this forum and countless others about I just had my heads machined and my valves hit the pistons that just tells me that that machine shop just did the heads and didn't understand valve clearance to start with and I for one would not want a shop shaving my heads and not understanding the rest of the picture. I would like input from the guys that are in the business on this forum WHO WORK IN MACHINE SHOPS again not from people who know people or have heard something!! REAL MACHINESTS!!
MY POINT IS THIS! FORD AND INTERNATIONAL know way more than us and give us guidelines to follow the same with any other company out there. Doing the proper checks and cleaning will save you the hassle of having to shave your heads!
NO OPINIONS , NO HE SAID SHE SAID JUST FACT
1) spec sheet from International on max allowable limit to remove?
2) No OPINIONS or I THINK why every head has to be machined WHEN THEY PASS WITH STRIAGHT EDGE AND CAN BE CLEANED PROPERLY!
3) WHY all the head jobs I have done "I have stopped counting" by the book cleaned by the book have had 0 issues!!! and none have been machined!
4) Is it the fact that it makes people feel better to have them machined and have metal removed in most cases that is NOT NEEDED!
5) Because a head wasn't machined because the proper checks where done and it was determined that machining wasn't needed DOES NOT MEAN THE JOB WASNT DONE RIGHT or everyone one of my hundreds of head jobs would have come back.
ON the other side of the coin I cannot tell you how many horror stories ive read on this forum and countless others about I just had my heads machined and my valves hit the pistons that just tells me that that machine shop just did the heads and didn't understand valve clearance to start with and I for one would not want a shop shaving my heads and not understanding the rest of the picture. I would like input from the guys that are in the business on this forum WHO WORK IN MACHINE SHOPS again not from people who know people or have heard something!! REAL MACHINESTS!!
MY POINT IS THIS! FORD AND INTERNATIONAL know way more than us and give us guidelines to follow the same with any other company out there. Doing the proper checks and cleaning will save you the hassle of having to shave your heads!
NO OPINIONS , NO HE SAID SHE SAID JUST FACT