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Engine basics => Engine set up tips => Topic started by: frank mccune on July 31, 2015, 03:40:39 PM

Title: Placing cylynder into crankcase? How
Post by: frank mccune on July 31, 2015, 03:40:39 PM

    Hello All:

    Today, I had a deuce of a time getting the cylinder back into my OS .30 Stunt. Please tell me an easy way to do this.


                                                                                                                                  Tia,

                                                                                                                                  Frank

Title: Re: Placing cylynder into crankcase? How
Post by: RandySmith on August 01, 2015, 11:21:48 AM

Quote from: frank mccune on July 31, 2015, 03:40:39 PM

    Hello All:

    Today, I had a deuce of a time getting the cylinder back into my OS .30 Stunt. Please tell me an easy way to do this.


                                                                                                                                  Tia,

                                                                                                                                  Frank

Frank it should just drop in.  Did you drop the sleeve?, is it gunked up?
need more info

Randy

Title: Re: Placing cylynder into crankcase? How
Post by: frank mccune on August 01, 2015, 12:30:42 PM

      Hi Randy:

      Thanks for the reply.

      I have had this problem with other engines in the past and the problem seems to be that the piston catches on the inside of the cylinder preventing the cylinder from entering the case. I do not think that the cylinder is eccentric as there seems to be not tight spot.  Sometimes, I can get the cylinder to easily slide into the case but today it was a nightmare! I have seemed to have the best luck with the piston turned to TDC.  Perhaps this is incorrect.  I finally gave up and increased the chamfer on the i.d. of the cylinder with my trust Dremel tool.  I have done this in the past with success but it seems a bit crude.  Sometimes a man must do what a man must do! Lol

    Oh yes, I used a copious  amount of oil on all of the parts!

    Suggestions?

                                                                                                                          TIA,

                                                                                                                          Frank

Title: Re: Placing cylynder into crankcase? How
Post by: Jim Kraft on August 05, 2015, 08:57:21 PM

It can be a pain sometimes as the piston will move from one side of the case to the other and catch on the sleeve. Sometimes it helps to hold the crank case upside down and the piston will then center better. The ones with the chamfered sleeves go pretty easy.

Title: Re: Placing cylynder into crankcase? How
Post by: frank mccune on August 06, 2015, 04:55:08 AM

      Hello:

      Thanks for all of the tips! I am sure that this advice will make the task a bit easier.

                                                                  Be well my friends,

                                                                  Frank McCune