Groove in crank shaft end. Normal? Fix? (pics)

Artago · Aug 29, 2013

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On the front case side. Underneath the crank shaft seal.

The back side of the seal runs in the groove.

I assume this is not normal?

Related thread: Help find the oil leak! (LOTS of pics)

I wont be replacing the crank or taking it out so should I:

1. Ignore it, install a new seal and put it back together.

2. Install a seal with a larger inner diameter

3. Install a seal with a larger depth (so it's not running in the groove)

4. Fill the groove with RTV and reinstall

5. Fill the groove with JB weld

Or can anyone suggest something better?

Thanks

BogusSVO · Sep 9, 2013

SKF is part of National seals.

Dorman is a reboxer.

lowell · Sep 9, 2013

Artago said:
That's what my dad suggested. Do I need to install a spacer to "gap" the seal out?

You could machine a spacer but I've never seen that done before.

arrowhead · Sep 9, 2013

National part number 99078, it is listed as oil pump seal and sleeve

Found it on line Advance Auto, double check I enter as a 1990 gsx 2.0.

BogusSVO · Sep 9, 2013

National® - Redi-Sleeve
Part Number: 99078
Line: NAT
1 Year Limited Warranty
UPC: 724956213122
Detailed Description

Shaft Size Minimum: 0.785 in. (19.94 mm.)
Shaft Size Maximum: 0.789 in. (20.04 mm.)
Width: 0.313 in. (7.95 mm.)
Overall Width: 0.433 in. (11 mm.)
Flange Outside Diameter: 0.999 in. (25.37 mm.)
Installed Depth: 2 in. (50.8 mm.)

That may be good for the rear BS, but it will not fit the crank

The shaft diamentions are below 1 inch.

arrowhead · Sep 9, 2013

Advance on line catalog is not very clear, that is why I told him to double check,
On the description.

Maybe CR makes it or some other vendor as they are a popular item.

white92talontsi · Sep 9, 2013

Another fix is to remove the spring from the inside of the seal. Twist it and the spring will unhook. You can then cut a couple coils off it and put it back together to tighten up the seal. Chances are it won't leak with what you have right there.

ricktb · Sep 9, 2013

I think i'd just slap a new seal on it call it a day.. oem

if the groove was caused by the seal it self, this may have contributed to an oil leak , but a worn seal will cause a leak as well. I bet a new seal will ride tight in the groove but if not your probably gunna need a tighter seal, or one that rides out of the groove. Or you just buy a new crank. Im sure there is a process to restore a factory finish to the surface but it might expensive.

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Groove in crank shaft end. Normal? Fix? (pics)

Artago

BogusSVO

lowell

arrowhead

BogusSVO

arrowhead

white92talontsi

ricktb

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