Rotax rebuild

[Guest]

[rayjb60]

[Guest]

Question for the 185 gurus. Bought some new points. They have what appears to be a piece of wood as the crank lobe rider. As motor is used would appear this piece of wood will wear down and thus throw off the timing of the engine. Doesn't look like it would take long for this to happen at 5800 rpms...

[Guest]

Hopefully you bought original point and hopefully it's not wood. It's most likely phenolic material and all you need to do is make sure you use a good lube on the part that rides ont he crank like an axel grease (something stiff and heavy) and wear will be to a minimum.

[Guest]

Bought from the recommended inexpensive (2.99) point supplier. Think was mfgsupply or something. Anyway, it may not be wood but is dark red in color.

[Guest]

Bought from the recommended discount point supplier (2.99) mfgsupply or something. Maybe wasn't wood but is dark red in color.

[Guest]

uuups ! Who knows what you have there ? May be wood. Get on the horn with Wildfire and get the right stuff rather than fool with cheap garbage.

P.S. Be sure to ask for the little packets of lube grease to lube the crank wiper.

[Guest]

Thx. On spark. Spark fires when points immediatley break..? If so, it fires at .15 - .17 BTDC. Does it take a while to get to the plug so piston is now at TDC..?

[Guest]

That engine looks like crap. Come on guys, where's the pride. We're flying an incredible airplane and they need to look like it...unbelievable!

[Guest]

Sorry, I'll try again. Does the spark from the points fire exactly when the points split (.16" BTDC, 0.0 point gap) or when the point gap reaches its optimal gap (.15" point gap, and guessing 0.0 TDC) ..? If when first split, does it take the spark a while to get to the plug, hence the .16 BTDC setting..?