[Mk2] [Turbo] Spot weld - what size drillbit

[rossonza]

Hi Guys.


Ive taken the paint back on my sills to find the spot welds on my rev2 jdm turbo mk2, anyone have a clue what size these are? as i need to order a spot weld drill bit to remove the sills and typically my calipers are broken and i dont have anyhing to measure them with.

cheers
Ross.

[abovetherim]

I bought 6mm and 8mm. I think I used the 8mm to drill the welds on the sill.

[rossonza]

I bought 6mm and 8mm. I think I used the 8mm to drill the welds on the sill.

thanks mate, ill order the 8mm

[Bear87]

If your looking to weld the new outer seal back on with puddle weld etc you would really need a spot weld drill bit, still 8mm but has a flat tip so you dont go through the panel behind.

cant say i have done the seals on mr2 but used a normal drill bit on my mx5 and stuffed it right up.

just my 2p but hope its helpful

scrap that just read thats what you were ordering

[JD]

i need to order a spot weld drill bit

you would really need a spot weld drill bit

Hey Ross, you could use a spot weld drill bit but what you really need is a spot weld drill bit, otherwise you will drill through panel behind. I know you said you were going to get a spot weld drill bit, but I would recommend a spot weld drill bit instead.

[Bear87]

LOL thanks JD you obviously got there before i edited it

i can be a right dumbass

[JD]

It's worth repeating, at least. There's not much worse in life than having holes where there's no need for them.

[C35Rob]

Especially in your outer seal

[/u]

[androo007]

If that's your outer seal rob I'd hate to see your inner seal

[C35Rob]

If that's your outer seal rob I'd hate to see your inner seal

[rossonza]

cheers guys! i didnt even know they existed until a friend mentioned it.

ordered a sealey 8mm. fingures crossed it does the business. will hopefully update my thread soon

[androo007]

[abovetherim]

Once you have your sill ready to weld on you can drill the hole in it off the car with a normal 6mm bit (a pillar drill makes this super quick).
I think 6mm is better for the new plug welds.

[rossonza]

Once you have your sill ready to weld on you can drill the hole in it off the car with a normal 6mm bit (a pillar drill makes this super quick).
I think 6mm is better for the new plug welds.

thanks mate, good to know. I've got a decent selection of bits, just not one to remove the spot welds. hopefully i can tackle this all the weekend.

[yokomomr4bx]

Slow and steady when drilling them out. 8mm is just a fraction too small and a lot of the time you'll be left with slither of metal outside the cut of the bit, I created a sacrificial knife like tool that can slide between the sheet to pop them apart (little persuasion with a hammer for some of them). Have fun, very satisfying job.

[rossonza]

Slow and steady when drilling them out. 8mm is just a fraction too small and a lot of the time you'll be left with slither of metal outside the cut of the bit, I created a sacrificial knife like tool that can slide between the sheet to pop them apart (little persuasion with a hammer for some of them). Have fun, very satisfying job.

Thanks mate, ill try and find something to use.

drill bits come... gonna tackle it sunday if the weather permits.

[abovetherim]

I forgot to say
Use a slow drill speed and spray some cutting fluid or we on the bit each time.

[rossonza]

I forgot to say
Use a slow drill speed and spray some cutting fluid or we on the bit each time.

will do. thanks mate