Hey guy's... I was replacing my shifter, on my 240 s13... Now during this process i noticed that the previous owner didnt have the front two bolts on at all, and was put on without any kind of gasket... Anyways i fixed all that, but when putting my B&M on i realized that one of the shifter bolt's was stripped, going into the tranny... Now my step father has a tap & dye set... has anyone had to do this before? My real question is how will i match up the fresh threads to a bolt... would the pitch and size of the screw change during this process? whats the best way of going about this.. Thanks for any helpfull answer's..
Tap and dye, my Tranny???
240sx_Dreams
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Hey guy's... I was replacing my shifter, on my 240 s13... Now during this process i noticed that the previous owner didnt have the front two bolts on at all, and was put on without any kind of gasket... Anyways i fixed all that, but when putting my B&M on i realized that one of the shifter bolt's was stripped, going into the tranny... Now my step father has a tap & dye set... has anyone had to do this before? My real question is how will i match up the fresh threads to a bolt... would the pitch and size of the screw change during this process? whats the best way of going about this.. Thanks for any helpfull answer's..
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so basically your saying, drill the old threads out(too clean & and make a new surface), then use the thread tool to make fresh threads..? Should i use oil when doing this?
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always a good idea to use oil while using a tap and dye kit. This isn't really a complicated task. before you tap new threads in you make sure its the right size for the bolts you are going to be installing.
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make sure you do an oil flush and get some pressure behind it because pieces will go into the tranny.
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And how do i know what size it will be after tapping it? Not trying to make it complicated, just want to know what i am getting into, so i can do it right the first time!!
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Find a nut that you can srew onto your tap. Find matching bolt. Depending on how bad the hole is jacked up, you may be able to reuse the same pitch bolt(s). I had to tap a hole in my driver's compartment, and was able to use the same bolt- it really just depends. If you can't tap it for the OEM size, go a size bigger... I also used a metric tap/die set since the hardware is all metric... Not hard; just take your time and you will be fine.
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Alright, rite on guys..I feel i can do this.. and if i go a size bigger i would have to tap the actual shifter plate as well. Should i just tap through the top of the shifter plate while it is assembled, i guess it would prevent metal from going in my trany..
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when tapping the hole, metal will go into the trans no matter what. As you get deeper, the metal sheering off will have no where to go but down. Even if you do it the right way and do the hole job going quarter turns and half turns deeper and backing it out that often after the turns. I would suggest the oil for sure, but I also suggest using a small magnet (like one that comes in tools kits and looks like an antena) to get the shavings if you can.
shift plate will not stop the shavings that are coming thru the bottom unfortanately.
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i see. well ill let you all know how it goes, once i get off my ass and do it..thanks for the help.
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No man, you don't want to tap the shifter plate at all. :fonix:
If you do that it will be impossible to screw through the plate and tranny cause the threads will never match up between the two separate pieces of metal. Trust me, I've been there once before.
Ok check it out, there are two separate parts to this; drilling and tapping. Let's start at square one: you have a hole with jacked threads.
1. Try turning a TAP into the threads at the current size. A lot of times you don't actually have to drill out and tap to a larger size, you might just need to run a tap through the threads to clean them up.
2. If the threads are too far stripped you need to drill it out to the next size up. Use a drill bit slightly smaller than the next size tap on the tranny case so you can cut threads into the walls of the hole. Run the tap through slowly, 1/4-1/2 turn at a time and then back it out to keep clearing out the cut metal.
3. Then use a DRILL BIT the same size as the tap you just used and DRILL a hole in the shifter plate, don't tap the plate cause it will be impossible to tighten it down if it has threads holding your bolt.
As for metal shavings in the trans... shit I don't know, I guess you would have to flush it out but I have no experience rigging up something like that.
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Fixed my leak using a metal plug, and re drilling into that... I guess Tap and dye sets are out dated these days..
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Any pics? We wanna see pics of ur work
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