Cam cover Tach oil leak now??

[xrdv8]

Hi again,

I have a oil leak in the front of the engine. I've replaced the cam cover large seal and the 8 cover bolt seals. Once started I thought I had fixed it until I noticed the tach cable was leaking. So I bought a new tach cable. Ran for 5 minutes with no leak then the new cable started leaking.

I spoke with an old Honda tech and he tells me there is an oil seal somewhere in the cam hold down area (?) that if it leaks it will fill the tach cable and make it leak.

I can't find it on a parts fische. Any thoughts?

thanks!
Maury

ps: I've gone over board now and have a Silver 79, Black 80 and a Red 80!!

[EMS]

Under the small 2-bolt cover with the thread, where you screw your cable to, is an O-ring and an oil seal. They sit on the part called tachometer drive gear, which is No 3 on my parts fiche.
The oil seal is No 10 and the O-ring is No 11. there is also a washer. No 8.

Is that what you are looking for?

[toytuff]

That is correct. If memory serves me correctly the seal has a flat side and a hollow end on the other. I believe the hollow end goes in and the flat side is out.

Please correct me if I'm wrong.

tt

[EMS]

I think you are correct. The flat side of the seal is the "seat" side and it sits against a machined step on the tach drive gear.

[budanddar]

I have the same issue where there are parts missing and the tach cable is loose where it attaches to the valve cover.
I have the shop manual and Mike Nixon's carb book. Can't find the schematic or part numbers for the parts missing. Sounds like there are 3 parts missing. Can you tell me where to view that schematic and find the part numbers? Thanks, Bud in Litchfield Park, AZ.

[JoeInTUS]

https://www.partzilla.com/catalog/hond ... head-cover

[budanddar]

Thanks for the Partzilla lead. Ordered the parts for $18.00 or so.

Bud

[daves79x]

FYI - many of us use Partzilla for the access to the parts fiches, mainly to see if the part we want is available from Honda, then order the part from our local dealers. They'll usually get to you faster and you'll be supporting your local, often struggling, dealerships.

Dave

[CBX-tras]

Don't forget the washer that goes on the tach gear that helps to keep oil away from the seal.

BTW, ALL oil seals are installed with the garter spring toward the source of oil/fluid, flat side out, regardless of where it is.