2000civ

I have a D16y8 for a DD which has stripped threads(from past owner). Replacing the plug with a 14mmx1.5 to solve this problem hopefully. My goal is not to have to replace the pan. The bolt definatly fits its just a matter of how long can it be? The bolt I have is 1and 5/8" long, which is twice the old shitty magnetic plug that ruined it all. Will this new plug hit any thing like a pick- up tube of baffle or will I be safe to continue to tighten it all the way in?

redline870

is the y8 the vtec model with the cast aluminum pan?

2000civ

No I believe they y7 is the steel pan with the vtec head. It is
A ya aluminum pan also a new crush washer is being put on.

furious94ls

D16Y8 is VTEC with aluminum pan
D16Y7 is non-vtec with steel pan.

redline870

i would take something (like a long skinny bolt, or wooden dowl) that is longer than the bolt your thinking of installing yet skinny enough to fit in the hole. i would then make a mark on it at 1 5/8" and just stick it in there to see if it hits anything.

if the threads dont continue far enough in the hole then you will need a tap to tap threads deeper into the pan. i believe the thread pitch is 12x1.75 or 12x1.5 but i may be wrong.

another option is to go to a parts store and get the special oversized thread cutting plugs for stripped out pans. find out what the thread pitch is and go to a parts store and look for one with the same thread pitch. on the package they usually say the thread pitch of the original hole but are slightly bigger and look like someone cut a slit down the center of it. make sure your start it straight and wrank it down and it cuts new threads and will be your new oil plug. ***just make sure its lined up straight or then your really screwed.

best option is helicoil it. you can get a helicoil kit for whatever thread pitch you want(i dont know if there is a napa where you live but they stock them) and make yourself some brand new stronger threads. plus its really easy to do. lots of manufactures use helicoil plug threads in cast pans so they dont strip out easily. if you go this route smear grease all over the drill bit to catch the metal shavings so they dont go in the bottom of the pan only to be sucked into the engine by the pickup.

i have used both these methods but much prefer the helicoil. the oversized plugs are always hard to get in and out in the future and helicoil just seems more legit and not as much of a hack job.

jbpnoman

"Stick it in there to see if it hits anything" doesn't answer the question. Things inside the oil pan rotate. They spin. They move. Just because it doesn't hit anything now doesn't mean it won't hit anything later.

Also, the magnetic drain plug didn't mess up your oil pan, someone installing it incorrectly did.

If you're going to oversize the bolt, just get the proper length bolt, or get a Sawzall or Dremel and shave the bolt so it doesn't hit anything. Problem solved. There's no reason to risk possible massive engine failure. I've seen people use the wrong dip stick in a motor, and it ended up being too long and wrapping around the crank. Seriously, this isn't something worth playing around with.

2000civ

Then what would the proper length be?
Is the 14x 1.5 pitch correct? It fits in the
Hole and about a half inch in starts to get
a little harder to tighten so I stopped. This is
still well short or were the old plug would be any
way so I kno it's not hitting anything. The getting
harder I assume was it catching the new unused
threads. Am I wrong? Also if it should be a 12 mm
not a 14mm bolt like I'm using am I stretching the
Threads and hurting them rather than making them
bigger without a die to cut it bigger? Sorry for all
The stupid questions just want to be clear.

jbpnoman

So you want to use a larger bolt to fix the hole, but you aren't bothering to rethread the hole?

Stop, get a tap and die set, and retap the hole. Get a bolt to match the retapped threads - what bolt you use depends entirely on what tap you use. Stick with OEM length - 1".

redline870

lol there a windage tray below the crank that goes no where and doesnt move, it would hit that before it hit the crank

redline870

pm me with youe phone number and ill walk you through it tomorrow. i will be working from 10-7 and can find out exactly what the thread pitch is that you need.

redline870

im not positive that the thread pitch is 12 it might be 14 but definitely not bigger than 14

2000civ

So the answer is Tap a new size.Wats
the easiest way to keep shaving out of pan?
I saw mention of grease, just seems like
unnecessary mess, could a small magnectic
part pick up tool as u turned the tap? Once again new to die set.

redm3turbo

^ ummm.....remove it

you werent thinking of drilling it out on the car were you?

2000civ

Someone earlier said some trick to do it that way
I take it I will be taking it off tonite lol

redline870

mess? your only putting it on the corkscrew part of the drill bit. you want a mess, let the shavings go in the pan. a magnet wont grab them because aluminum is not magnetic. put grease on the drill and no shavings will go in the pan.

i dont care what anyone says i have done this 100 times on the car and it works every time and never gets shavings in the pan. if you buy a helicoil kit it comes with the drill bit, tap, and install tool for the helicoil. <- everything you need besides grease.
so you need a helicoil kit look for that at your nearest parts store.
once you get the kit, drill the plug holes with grease on the drill bit, then tap the threads with grease on the tap, dump a quart of oil in the engine to flush anything out that may have possibly but not likely got in the pan. the using helicoil install tool, install helicoil into the tapped threads and wahlah you have steel threads that will last the life of the car.

ill pm you my number call me if you have any questions

redline870

if you put grease on the corkscrew (low section along the sharp edge) part of the drill bit, as the drill bit turns and cuts the metal it gets stuck in the grease on the drill bit then just wipe off the drill bit when your done. same rule applies to the tap. this is an excellent trick and i would not disregard it.

removing it will make everything easier but it is absolutely not necessary. i did this 3 days ago on a buick century with a cast aluminum pan and not one bit of metal fell into the pan. even if you do get a small amount in the pan its right next to the plug and as soon as you pour some oil in it with no plug it will flush it right out.

2000civ

Sounds good thanks again. I'll try to get that kit ASAP .