bertsmobile1
Lawn Royalty
- Joined
- Nov 29, 2014
- Threads
- 64
- Messages
- 24,705
There are 5 O rings on a power torque engine.
3 of them are special size and 2 are standard size but from special rubber.
The ones that give most grief are the ones on the plastic manifold.
So push & turn the carb to take it off the manifold.
Remove the 2 manifold screws.
Remove the O ring that sits against the engine, that is the one that usually leaks.
The one on the outside of the manifold makes the seal against the carb so replace it and clean the inside of the carb.
The pull start has a small one on the center bolt and of course a large one that makes the crank case seal.
Both of these need to be lubed with rubber grease ( vasolene in a pinch )
The last is the one around the primer cap and it also needs to be lubed as above.
The cheapest way to get them for a consumer is to buy them from ebay as a kit.
The only real trick is to push the primer housing on with your fingers till the edge bottoms out on the carb, then do up the main jet to hold it in place.
If you just sit it on the carb then tighten the main jet the primer cover bends and you don't get a good seal.
Also replace the rubber boot on the cut out switch, they tear and can give you grief.
Trick here is to do it with the throttle full open.
And while you are there, do all of the fuel lines.
Being PVC they go hard and leak .
Again they come as a kit nowdays, Victa should have sold a refurb kit & perhaps people would have realised they need to be replaced from time to time.
You can replace the Victa PVC lines with new TYGON lines which will last for a lot longer ( also more expensive ) but you must use the heavy walled tube as the decompressor line & the governor lines are both vacuum and the thin stuff collapses.
If you want more detailed info I can post pictures.
3 of them are special size and 2 are standard size but from special rubber.
The ones that give most grief are the ones on the plastic manifold.
So push & turn the carb to take it off the manifold.
Remove the 2 manifold screws.
Remove the O ring that sits against the engine, that is the one that usually leaks.
The one on the outside of the manifold makes the seal against the carb so replace it and clean the inside of the carb.
The pull start has a small one on the center bolt and of course a large one that makes the crank case seal.
Both of these need to be lubed with rubber grease ( vasolene in a pinch )
The last is the one around the primer cap and it also needs to be lubed as above.
The cheapest way to get them for a consumer is to buy them from ebay as a kit.
The only real trick is to push the primer housing on with your fingers till the edge bottoms out on the carb, then do up the main jet to hold it in place.
If you just sit it on the carb then tighten the main jet the primer cover bends and you don't get a good seal.
Also replace the rubber boot on the cut out switch, they tear and can give you grief.
Trick here is to do it with the throttle full open.
And while you are there, do all of the fuel lines.
Being PVC they go hard and leak .
Again they come as a kit nowdays, Victa should have sold a refurb kit & perhaps people would have realised they need to be replaced from time to time.
You can replace the Victa PVC lines with new TYGON lines which will last for a lot longer ( also more expensive ) but you must use the heavy walled tube as the decompressor line & the governor lines are both vacuum and the thin stuff collapses.
If you want more detailed info I can post pictures.