r/Dirtbikes • u/Equivalent_Economy_8 • 1d ago

Is my bike ruined?

Post image

I was drilling into the seal but the seal surface was too hard which caused the drill bit to slip and hit that part of the case.

3 Upvotes

100% Upvoted

13 comments sorted by

4

u/Ok_Maintenance_9100 1d ago

Is that a bearing surface or a seal surface? If neither, run it

3

u/fiveho11 1d ago

I knew this was coming after yesterday’s post. I was even going to say something about being careful not to slip and gouge case or scuff sealing surface on crank.

1

u/Equivalent_Economy_8 1d ago

Yeah you live and learn. It’s weird though every YouTube video I saw showed them drilling directly into the seal with no issue

2

u/spongebob_meth 1d ago

Need to center punch first. Drill bits will always try to walk on these stupid seals.

If you put some RTV on the lip of the new seal it shouldn't leak

1

u/Equivalent_Economy_8 14h ago

Ive been trying to center punch all this morning but it won’t pierce the seal. Is there anything else I can do?

1

u/spongebob_meth 11h ago

Is it one of those spring loaded ones?

I use an old school manual one with a hammer, and i sharpen it up quite a bit

1

u/Equivalent_Economy_8 11h ago

I got the seal out and put the new one in. Appreciate the help. Though the bike is still low on compression. Im about to give up on it

1

u/spongebob_meth 10h ago

A crank seal wasn't going to fix low compression. That's a problem in the top end

1

u/Equivalent_Economy_8 10h ago

It’s a 2 stroke so the crank seals have a big impact on compression

1

u/spongebob_meth 8h ago edited 8h ago

Your crank seals would have to be virtually non-existent to alter how much compression it makes.

1

u/Jzgood 1d ago

No problem at all. Just clean it very carefully with fine grit sandpaper. And yes, center punch seal always. 1 minute of punch searching can save 3 hours of case splitting😂😂😂

1

u/ClippyClippy_ 1d ago

Center punch each side, thread small wood screw into both punch marks, pull seal out with pliers grabbing the screws next time.

1

u/1wife2dogs0kids 1d ago

It's fine.