Old Whizzer pushing oil?

[BlueWhizzer]

My original 1946 Whizzer uses about an ounce of oil every 3 or 4 hours of easy riding and you can wipe the inside of the exhaust pipe and get burnt oil in your finger. It runs like a champ though and is very reliable.

Should I not fix what isn't broke or should I rebuild it this coming winter?

[RdKryton]

Make sure your crankcase breather is not clogged.

Jim

[BlueWhizzer]

Thanks Jim I'll remove and clean it. It runs so well it is hard to believe the engine needs rebuilt/work.

I went for a long ride on Saturday (about 4 hours) and when I got home I noticed that some oil sprayed out of the breather hole. That is the first time I have ever seen it do that but, I usually only go for short 1 hour or less rides. I'll have to come up with a small hose to keep the spray away from the belts.

[BlueWhizzer]

I removed the breather and disassembled it. It was not very easy to blow through it even after I removed the clip, washer, wafer and spring so, I flushed it out and blew through it again and it still seemed too hard to blow through. So...then I removed some of the packing and now it seems fine to blow through.

A few questions though.

1) is the stuffing that is in the breather there just to act as a filter so that dirt isn't sucked into the engine?

2) Direction of the washer that sits against the wafer...does the raised lip go towards the wafer or does the lip face out? I re-assembled it facing the wafer because it makes sense but, I don't want to assume.

3) How do you removed the cap on the breather tube so you can clean or replace the stuffing?

[WZ507]

The purpose of the filler material in the breather is to demist the oil-laden air coming out of the crankcase. The accumulated oil then drains back to the the engine via the small slot on the bottom of the breather (just below the flapper valve).

You have assembled the breather correctly, with the washer flange facing into the breather.

To remove the welsh plug, you can drive a drift or punch through it and pry it out, or you can drill a hole in it, thread a stout sheet metal screw into the hole, hold the screw in a vise or with a plier and pull the plug out.

[BlueWhizzer]

The purpose of the filler material in the breather is to demist the oil-laden air coming out of the crankcase. The accumulated oil then drains back to the the engine via the small slot on the bottom of the breather (just below the flapper valve).

You have assembled the breather correctly, with the washer flange facing into the breather.

To remove the welsh plug, you can drive a drift or punch through it and pry it out, or you can drill a hole in it, thread a stout sheet metal screw into the hole, hold the screw in a vise or with a plier and pull the plug out.

Thank you very much for the info. Hopefully flushing the packing out with LPS (didn't have carb cleaner handy) cleaned it up and I won't have to pull the packing out.

[Quenton Guenther]

Try soaking in part cleaner fluid, then use air to flush out any remaining dit.

Often many replaced the welsh plug at the top of the breather with a quarter when the plug was lost.

Have fun,

[RdKryton]

Also keep your eyes open for a tall breather. They are on 1949 and later engines. Using a tall breather allows you to use 8oz of oil instead of 6oz.

Jim

[BlueWhizzer]

Try soaking in part cleaner fluid, then use air to flush out any remaining dit.

Often many replaced the welsh plug at the top of the breather with a quarter when the plug was lost.

Have fun,

That is a good idea, I'll do that. Thanks Quenton.

Also keep your eyes open for a tall breather. They are on 1949 and later engines. Using a tall breather allows you to use 8oz of oil instead of 6oz.

Jim

I'll keep an eye out for one. Thanks Jim.

[Quenton Guenther]

You can purchase a repo of the tall breather from Wildfire in Ohio.


Have fun,