My 1st Auto

[dumpbear]

Well i bought my 1st auto yesterday it is 98% there.Mice ate the seat and i see they have the silencer packed so its time to start taking it apart.The motor seems to have good compression i am going to pull it a get it on the work bench probably going to be asking alot of questions as i have no manuals on this baby and it being my 1st one.The tank is 100% dent free the guy i bought it from must have thought i was nuts the way i was feeling the tank over feeling for dents.The inside is pretty rusty do you guys have any good rust removing secrets for in the tank.Thanks in advance for your help You guys are the best.
Tom

 

[ktmal]

I have good luck with Sherwin Williams automotive metal conditioner ,twin etch and triple etch. I'm glad you bought that bike it as for sale for awhile and I was trying not to buy another air cooled auto ,(I have four) only a 430 water pumper next . I'm fairly close to you if you need any help
Al

 

[stormer254]

Here is a link to gearbox strip down, it is for a 258, but the 420 has the same box, all the other Auto manuals I have found refer to the refer to the 360/390 gearbox which has several quite important differences, the rest of the bike is just good old Husky and the standard manuals will suffice!
http://www.teamnorrland.se/Renovera AE.htm

 

[stormer254]

Google chrome will translate if your Swedish is not too hot!

 

[grouty]

It seems to be all there Tom.
For a cheap rust remover try using molasses. You can buy a gallon for a few $. Mix about 8 or 10 parts of water with the molasses. A good stir and pour into the tank. Don't forget to seal off the petcock. Leave it for a couple of weeks while you are doing the rest of the bike. Give it a shake every few days. Empty out and see ! Stubborn rust is best dealt with old nuts etc before the molasses. Rinse out with water, followed by a good swill with some gas and old 2 stroke mix. Job done. There are loads of other ways as well.
Feel free to ask about the auto box. There are loads of 'Auto Nuts' here :-)

 

[suprize]

check out visiteur1948's threads on tanks, he is the tank king

 

[dumpbear]

I have good luck with Sherwin Williams automotive metal conditioner ,twin etch and triple etch. I'm glad you bought that bike it as for sale for awhile and I was trying not to buy another air cooled auto ,(I have four) only a 430 water pumper next . I'm fairly close to you if you need any help
Al

thanks Al i will give it a try

 

[dumpbear]

Here is a link to gearbox strip down, it is for a 258, but the 420 has the same box, all the other Auto manuals I have found refer to the refer to the 360/390 gearbox which has several quite important differences, the rest of the bike is just good old Husky and the standard manuals will suffice!
http://www.teamnorrland.se/Renovera AE.htm

That has to be the best visual tear down i've ever seen thanks stormer

 

[dumpbear]

It seems to be all there Tom.
For a cheap rust remover try using molasses. You can buy a gallon for a few $. Mix about 8 or 10 parts of water with the molasses. A good stir and pour into the tank. Don't forget to seal off the petcock. Leave it for a couple of weeks while you are doing the rest of the bike. Give it a shake every few days. Empty out and see ! Stubborn rust is best dealt with old nuts etc before the molasses. Rinse out with water, followed by a good swill with some gas and old 2 stroke mix. Job done. There are loads of other ways as well.
Feel free to ask about the auto box. There are loads of 'Auto Nuts' here :-)

I have a couple of other tanks i am going to try molasses on one of them i dont know if i can eat another molasses cookie if it eats out rust!

 

[dumpbear]

check out visiteur1948's threads on tanks, he is the tank king

i'll check him out thanks

 

[dumpbear]

Does anyone have a source for engine seals for this 420ae ive found the gasket set but no seals thanks

 

[grouty]

Seals are commercially available Tom. The size will be on the old ones. Make sure you get "Viton" ones. You will need to split the cases to replace the left side. Right side can be done by removing the flywheel and ignition back plate. Check for wear where the seals run on the crank. If you can feel a depression with your finger nail, replace the crank stub. Otherwise it will suck air.

 

[jimspac]

Aquarium gravel breaks down the rust and will allow Evaporust or any other metal conditioner do a much better job of neutralizing the rust

 

[suprize]

gravel from the backyard is free and does a fine job

 

[grouty]

As does all the old Whitworth nuts I seem to have accumulated over the years

 

[suprize]

im a tough bastard, i threw a lot of my old nuts and bolts out in a real fair dinkum clean up.

 

[dumpbear]

Hey guys grouty and others recommend univis hvi26 but it doesn't seem to be available in the US what do you guys run in yours.
Tom

 

[ktmal]

I googled the univis and came up with a interchange chart to a shell part number and got a five gallon bucket from the local napa works really well. most important thing is to change it every good ride .I run some of the vintage enduros and have had no problems

 

[Bill502]

I googled the univis and came up with a interchange chart to a shell part number and got a five gallon bucket from the local napa works really well. most important thing is to change it every good ride .I run some of the vintage enduros and have had no problems

Whats the oil your using from NAPA?
Bill

 

[ktmal]

Shell Tellus t32 works better than anything else I could find
Al