heating a motor for break in?
 

what are a few options to heat up a motor during break in before starting it?

If you're some where in socal Harbor Freight tools has a good heat gun

Any tips for avoiding the carb while heating the head and case?

Don't point the heat gun at the carb.:p:lol:

You could put a piece of cardboard between the head and carb.

Hot pad
 

I grabbed an old hot pad from the kitchen and I lay that over the carb so I don't melt it. Be careful when heating the engine. If you concentrate the heat right on top of the head you can get it too hot and warp the head. You want to disperse the heat evenly on the top, sides and on each side of the case. Give it a minute or two to soak evenly into the engine. Make sure your piston is at BDC when heating the engine.

will a hair drier get it hot enough as a temp fix?

I've seen hair driers get motors to 150-180. Not hot enough. Spend the $10-20$ and get the heat gun. You've spent enough on buying a motor to not spend a tiny bit more and have an engine that will last.

hmmm
 

no need to heat a motor. It will warm up all on it's own. Unless it wont start. I don't use calipers or temp guns either, and I don't change setups every day. Still win races and get 10 gallons from my motors without worrying about runtime. Huge box of tires? nope. I do clean my car really well.

wise words
 

exactly!

by the way how u cleaning the car?

I genereally heat mine up until break in is done.. then if possible for a few more tanks. But by that time im running it down the track.. so dont have power to use the heat gun.. But Heating a engine on break in makes it x2 as easy to do that.. cold.. years back breaking my 1st Go engine.. Toke me over a hour to start it. because of the pinch... but I dont think many do it that way anymore.. or did lol.. but I didnt know any better..

+1 to everything this guy just said...

lots of overrated techniques out there

I use one to get the engine to 180 the first heat cycle and 150 the next 2. After that then just straight starts.

I use a hairdryer to pre-heat the engine to at least 150F, and continue to do that until there is little to no chance of the piston sticking at TDC when cold. That could take up to a gallon of fuel, depending on the engine.

I heat the engine head and block when breaking in the engine and until the metal pinch is gone. I also use a heat gun when the weather is cold. I race in a winter series and in the morning it's usually in the 30's engines don't like to start when it's that cold outside.