Internal distributor shaft radial seal...what size is it?

[AllHailKingVolvo]

Hi all,
I’m going to replace the o-rings and internal oil seal in my dizzy as a freshen up when I change my rotor arm. I can’t find any info online about the size of the internal radial oil seal that sits in between the fibre washers and prevents oil ingress into the cap.

There are plenty for sale online but only in the US! Volvo will only sell me a new dizzy unit but for the sake of a £2 seal I’d rather rebuild it myself.

I figure it should be a regular style nitrile rubber seal that can be sourced from a industrial links style company...if anyone can help on the dimensions that would be ace-I’d like to order the part before I take the dizzy apart so the car isn’t off the road for too long.

[AllHailKingVolvo]

Further sleuthing online revealed that the seal is unavailable from Volvo themselves, but there is a compatible Honda seal which is used by Honda in the reduction gearbox on a GX series lawnmower engine...it’s a 20mm OD/12mm ID/5mm deep nitrile rubber unit, Honda part no 91202-KF0-003.

It’s a double-lipped seal as opposed to the original single lipped Volvo unit, so in effect with correct installation should be a better seal.

Thought it may be useful info for anyone looking to rebuild their distributor...I’ve yet to get mine apart and actually do the work, but will report back!

[globetrotter]

You will need a very hard short punch to get the pin out of the shaft, and I would mark it with a diamond file so when you re-assemble it you are not 180 degree out
Cheers

[AllHailKingVolvo]

Thankyou! Great advice. I’ve got a few punches but will invest in a new one to get this done.

[Laird Scooby]

Originally Posted by AllHailKingVolvo

Further sleuthing online revealed that the seal is unavailable from Volvo themselves, but there is a compatible Honda seal which is used by Honda in the reduction gearbox on a GX series lawnmower engine...it’s a 20mm OD/12mm ID/5mm deep nitrile rubber unit, Honda part no 91202-KF0-003.

It’s a double-lipped seal as opposed to the original single lipped Volvo unit, so in effect with correct installation should be a better seal.

Have a look at this one Phil :

https://simplybearings.co.uk/shop/p2...duct_info.html

Might be my eyesight but it looks like it is double-lipped and i'd hazard a guess it's a lot cheaper than the Honda branded seal!

[TonyS9]

FAQ :

https://www.volvoclub.org.uk/faq/Vol...ShaftSeal.html

[AllHailKingVolvo]

Thanks gents!

Dave, having raced twin engined Honda modified Prokarts for many years in the past, I would always look for an alternative to the branded Wongda stuff! Managed to bag a pattern seal last night, although not quite as bargainiferous as the one you linked to.

Tony, thankyou-super interesting read!