break-in to dz160 engine
 

hello

i have a new engine dz160, i buy it from a friend ( the engine never work )
i have no experience with engin like this.
can you explain me please how i do a good break-in
can you give some tips like:
1. how much i need to open the speed needle ? ( people caution me that if the engine run to rich it able to suddenly stop and broken! )
2. how much time need to break-in ?
3. if i do the break-in on wood plate i need to use with shock absorbing soft mount ?

thanks
kobi - israel

RE: break-in to dz160 engine
 

This is straight from the owner's manual for the 160 DZ:

BREAK-IN
To maximize engine performance and increase durability, please follow
this break-in procedure.
1 Use the same size ( or slightly smaller ) propeller than you intend
to use in flying.
2 Use a good quality fuel containing 15% to 30% nitro, and oil content
of 20% to 24%. Synthetic oil only. If you use caster oil, no more
than 2% is recommended.
DO NOT USE FOUR CYCLE FUEL DUE TO LOW OIL CONTENT.
3 After the engine has started, slowly bring the throttle up to full.
Set high speed needle so it is running at a good rich setting without
the glow driver.
4 After the initial 20 minute break-in, mount the engine in the aircraft
and set the high speed to a richer than normal setting for the first
10 flights. This will help to lubricate all moving parts.

I've never heard of an engine stopping suddenly and being damaged from a too rich setting. Open the high speed needle about 3 turns and start the engine. Turn it clock-wise (lean) slowly until the engine begins to increase speed. Continue until you get maximum RPMs, them open it back up until the engine looses a few hundred RPMs and stop.

Answered above.

No. The shock absorbing mounts are meant to protect the aircraft, not the engine.

You said in the first part of your post that the "engine never worked". Do you know what was wrong with it? What were the issues with it?

David

RE: break-in to dz160 engine
 

thanks David

1. "engine never worked" - i mean that the engine is new ( in the box )
2. i can not open the operator's manual of the dz160 from the site ( i only look the parts list ) can you send me the link ?

kobi

RE: break-in to dz160 engine
 

Ahh, never thought of that! Now it makes sense.

Yep. Try this one:

http://www.yspartsandservice.com/parts_ys160fz.php

Click on the link on the right side of the page to download the PDF file.

David

RE: break-in to dz160 engine
 

David

i Click on the link on the right side and it open only the parts list and picture of the engine ( while i choose ys dz160 if i choose another
engine like ys dz140 it is o.k. )

kobi

RE: break-in to dz160 engine
 

When you click on the above link it will say" Operator's Manual ( PDF File) on the right side. Click on it and the instructions will download.

If not I have sent you an E-Mail. Email me back and I will send you the file on the 160

RE: break-in to dz160 engine
 

thanks tailspins

my email : [email protected]

kobi

RE: break-in to dz160 engine
 

I just sent the file to you!

John

RE: break-in to dz160 engine
 

John
thank you
i got from you the copy of the first page of the Operator's Manual yesterday
thank on your effort to obtain me the manual.
See you again
kobi