chepetech

iTrader: (2)

I just rebuilt my engine and the compression is low, so low it wont start. i want to put atf in my rotor faces through the leading spark plug hole to build compression to start it up for the first time. how much atf do i put in it? in each face? thank you! or id there another way to build the compression. i think i might have put too much vaseline on my side sides and corner seals, lol

bse50

How do you know it has low compression?
Try pull starting the car.
A fresh engine should start without problems. If it doesn't want to pull start just take it away and buy one from somebody that actually knows what he's doing.

chepetech

iTrader: (2)

I did a compression test with a regular tester and the reading were 50-50-25. I can hear the car igniting on two faces but wont turn on. I think your right bse50, Im gonna just get another engine from a reputable builder. all of my seals are brand new. apex,corner,side and also all the springs. My rotor housing seemed to be in really good condition. ohhhh well. cant say i didn't try! When the car tryies to turn on my rpm's on my dash are a little under 500 rpms. I think its spinning just a little too fast. which also leads me to beleive there is no good compression.

chepetech

iTrader: (2)

so i took my engine apart again... i rebuilt it very carefully. i stick the the same results. front rotor 85,60,60 and the rear 50,45,45 psi. im just gonna give up and really get a new engine now. lol

9krpmrx8

iTrader: (46)

Ouch.

Wingznut

iTrader: (1)

It would be really cool if you could take your current engine to an experienced rotary engine rebuilder, and find out exactly where you went wrong... Perhaps we could learn a thing or two.

chepetech

iTrader: (2)

i wish i could take it, but i live in a very small city... nobody here even knows what a rotary engine is. im going to see if someone in san diego, works on rotary engines. its only two hours away.

Grace_Excel

iTrader: (5)

You are in the arm-pit-of-California... Anyway, inquire with the guys at LUCKY7 RACING and you can check this listing in the SoCal Lounge by Spinning Sushi.

chepetech

iTrader: (2)

definately the arm pit! hahahahaha, Im gonna try them. Thank you!

chepetech

iTrader: (2)

Hi guys its been a while, but I finally got this engine running.... I had stopped trying to figure out what went wrong on this build and bought a low mile reman....... Well that reman failed this past month. I decided to look back at this newly built engine that had low compression. Since then I have gained a lot more knowledge, I have all the proper measuring tools. I measured all my side seals and they were at a great clearance 0.015 to the corner seal. I measured my irons and housings, all in excellent condition. I couldnt really figure out what went wrong... IT COULD ONLY BE ONE THING...my corner seals. I had installed the corner seals that comes with the atkins kit, the solid seals... I had read previous posts of how I should NOT use these, so I took them off and installed the used ones from the reman that had just failed on me (broke an apex seal). I just wanted to see my compression numbers with these used ones.... Well guess what???? my compression sky rocketed, I have 120psi per face now! I was having some issues with the eccentric shaft end play, but I figured it out....I took my D spacer to a 320 grit sand paper and sanded it on a very flat service. I got my play at bit tighter clearance than mazda. I am very happy that I got this running!

9krpmrx8

iTrader: (46)

Congrats. Yes, a rebuild is all about the details.

kevinande

Congratulations on getting it running. I respect the fact that you owned up to perhaps you did something wrong and in the end actually got it working. I no longer have the patience or desire to do something like that, and quite frankly just easier to pay someone to do it for me. I just want to drive it lol. Again good going! Now rebuild that other one and have yourself a spare.

chepetech

iTrader: (2)

Thank you!!

olddragger

iTrader: (3)

yes--very good job.
You are a much wiser man because of your persistence