Jen's 57 good alternative to Irvine 53?

[stalion456 0]

HI All,

 

It seems that Irvine's 53 are out of stock every where I look !

 

now I have seen that Jen's 57 is available from just engines, my question is, is there any one that has one or that has used Jen's engines, there seem to be a lot of double thoughts in regards to this engines, some say they are good some say they are bad.

 

I would like to hear your thoughts.

Also I have heard that they run badly on 10% nitro and 5% is advised.

[arun 0]

I had a Jen .37 not .57 but they are same design to all intents and purposes. Sadly, I was very unimpressed. The internals of the cylinder rusted despite the engine being well stored with oil and left un-run for less than two months. In the air I found it was OK in my Weston Cougar but would cut out during extended periods of idle (e.g. a four turn spin) which led to "exciting" landings. The engine itself feels heavy and basic to me compared to a modern OS, but maybe rugged is a nicer description!

 

They also use a ringed piston so require much more and careful running in than an ABC engine. Overall, I would say don't go there - but that is just my opinion, I know others are happy with them and you should hear their opinions too

Edited April 17, 2013 by Guest

[stalion456 0]

Thanks Arun.

[Bravedan 106]

Never had one, as from 40 plus years engineering background and information from many sources when I resumed in 2009 I decided to avoid. Nothing I have heard since (quite a bit) convinces me I made a wrong decision.

[stalion456 0]

Thanks Dan.

[hotrod 0]

I had two one 57 and and one 46. As long as you use 5% nitro they were fine. The 57 I sold to Les who is still using it.

Remember 5% not 10% nitro

Rod