Timing cover seal

[whitewithblackroof]

Hi, I am replacing the timing cover seal and have a couple of questions which I am hoping can be answered here.
1) The manual says to fill the annular groove in the seal with grease, I presume this is the large donut groove on the side which faces the engine but can't see why this needs filling with grease other than to prevent it filling with oil.
2) I have a new oil thrower (flat plate), the old one is domed, can I use the new version of this as presume it might be better at preventing future leaks

[Polarsilver]

I just smear a film of grease around the Oil Seal lip where it will run on the shaft this helps during assembly & will reduced friction onto the new oil seal on start up.
Why replace the existing oil thrower disc with something other than the standard item .. others will know better than me but maybe possible the differing oil thrower types refer to either the Simplex or Duplex Timing Chain that is in use... lets see whet the experts say ..

[whitewithblackroof]

Yes, that is where i would expect grease to go but manual says to fill the annular groove which is confusing as the annular groove would surely be the open end of the seal with the spring, unless it is to stop the spring falling out of course. Also the word fill rather than lubricate or smear is used implying quite a lot of grease
Would it harm if the grease were there as well?

[bwaminispeed]

I believe they are referring to the space between the inner and outer seal lips in the bore of the seal as looking from the front......

I believe some seals are also single lip, so, wouldn't apply to them......

[Spider]

As bwaminispeed has mentioned, they are referring to the space between the 2 lips of the seal - if it has the 2 lips. If it's a single lipped seal, for this application, I wouldn't fit it as it's the wrong seal and likely won't last too long. The inner lip is there to retain the oil of course, the outer lip to keep what's in the outside world from getting in.

While the manual says to fill the space between the lips, I only ever fill to 80% at the most. As heat gets built up here, the grease will expand and needs to go somewhere, which will generally be to the outside. Having them a grease smear all the way from the seal, it only encourages dirt and other abrasive materials to stick just where you don't want them, leading to possible premature failure of the seal as well as a small mess from the grease.

The grease assists with the sealing but mostly, by applying it here, it greatly reduces wear on the shaft that's shinning inside it.

While the manual may say to do this with this particular seal, it's actually the case with any multi-lipped seal, to grease between the lips.

[whitewithblackroof]

Thanks all, I thought it might go in the diameter area, the manual could be clearer as to what it means by annulus really
I think just for good measure I might put grease in both so I can’t be wrong just in case it is meant to go there as well (although as I said I am not sure why unless it is to help hold the spring), the manual has some missing steps and some extra ones sometimes so just makes me question
Another question, crank bolt loctite or not, is the lock tab on the washer on its own ok as apart from not being able to put a socket on the bolt how does it stop the bolt rotating when the tab is bent up?

[OzOAP]

I have a new oil thrower (flat plate), the old one is domed, can I use the new version of this as presume it might be better at preventing future leaks

There are 2 types of oil thrower. One for internal seal timing cover, one for external oil seal type.
If you have a "domed" one that is for an external oil seal cover.

[whitewithblackroof]

Ah that would be why, presume I can use either as looking at the parts list it has both throwers for the same external seal cover

Thanks

Incidentally looking with fresh eyes at the manual page, I think it might mean to grease both either that or grease the same part twice once for the tool and once for the crank pulley... stage 6) says to fill the annular groove and 8) says to fill the groove of the seal
I am going to be putting it all back together this evening and only want to do it once as the back of my hands probably won't last another go