Re: What do you do when a friend calls and needs help?
Man that's crazy, I hope to never have to do that again.
So I was talking to my buddy about the issue a minute ago and asked him if his misfire from the old plugs was gone ans he said it was, then he was talking about that if he had to he was just going to put the old plugs in and sell the car. I was like wait a minute, that sparkplug would have blown smooth out of the cylinder when you started it up.
Then he says that he had put the old one in and it seemed to hold. So I asked him what were the plugs old and new he said the old ones were NGK and the new ones were Denso. I am wondering if there is a difference in thread tolerance on the different plugs.
I handed over buying parts over to him a few months ago (drills, taps, endmills, inserts and other machinery consumables for the mill and lathe). Well he came up to me and started asking about the taps and what did the H-1, H-2, H-3 mean, so I explained that even though the thread pitch is the same the fit is tighter or looser depending on what grade the tap was and some were for more precise holes and maximum strength and some were looser for easier assembly and such.
Could it be that his new plugs are a little on the looser side and the old ones were a little tighter and this is what caused the threads to pull out?
When I got there that day I looked into the sparkplug hole as best I could, and though the threads seemed slightly rounded I could tell the threads were there. I inspected all his plugs looking for signs of aluminum in the threads, but every one looked good.
Jeff
Re: What do you do when a friend calls and needs help?
Quote:
Originally Posted by
J57ltr
Could it be that his new plugs are a little on the looser side and the old ones were a little tighter and this is what caused the threads to pull out?
I wouldn't think so, but you never know. Does he have the right plug(s)? Is the seat on it/them the same as the old ones?
Re: What do you do when a friend calls and needs help?
The NGKs had a crush washer the Denso had just a bevel without a washer.
Re: What do you do when a friend calls and needs help?
I knew it was a lot when you were talkin about it, lol. Pretty crazy that you literally had to MAKE the tool to do it, lol.
Re: What do you do when a friend calls and needs help?
Quote:
Originally Posted by
J57ltr
The NGKs had a crush washer the Denso had just a bevel without a washer.
That could be an issue, but only for the seating of the plug.
Re: What do you do when a friend calls and needs help?
Well they seemed to seat just fine I was just worried about thread tolerance I wouldn't think they would change, but those damn Chinese can't get anything right.
Quote:
Originally Posted by
Booba5185
I knew it was a lot when you were talkin about it, lol. Pretty crazy that you literally had to MAKE the tool to do it, lol.
Yeah, I was pretty busy I even had to eat McDonald's since I was starving and wasn't going to be getting out of there anytime soon. Luckily with both of us doing the work, and that tap not being hardened it was a lot easier and faster than I thought it was going to be., that and the hole for the rod ended up being a perfect fit. Usually they try to move around and you end up with a larger hole than what you drilled so I just stepped up from 1/4 to 5/16 then to 3/8" I was afraid I was going to have to go to 1/2" since that's the only other rod we had in stock besides tube.
I'll try to knock out the timer this week it's been crazy busy and I have been on the phones most of every day. Luckily I can type and listen at the same time lol.
Jeff
