DIY motor build horror stories

Reply Subscribe

Thread Tools

Search this Thread

09-08-10, 09:19 AM

#26

farberio

NASA-MW ST4

iTrader: (7)

Join Date: Dec 2004

Location: Norcal, Bay Area

Posts: 3,800

Likes: 0

Received 3 Likes on 3 Posts

Quote:

Originally Posted by DemonicPupil

I've got 35+ pulses on all 6 faces.. 120+ psi on both rotors. Looking forward to loading the **** out of it and finding out what didn't hold together so well =).

Whaaa...your getting 35 pulses on all 6 faces? Dude...you should only get 1 'pulse' per face.

Reply Like

09-08-10, 02:21 PM

#27

Poker Player

Full Member

Join Date: Jan 2010

Location: West Coast!

Posts: 83

Likes: 0

Received 0 Likes on 0 Posts

What are the "pulses" per face? Sorry guys I really don't know what that phrase means..

Reply Like

09-08-10, 02:31 PM

#28

20Bforme

three spinning triangles

Join Date: Oct 2003

Location: SE Wisconsin

Posts: 1,441

Likes: 0

Received 0 Likes on 0 Posts

Quote:

Originally Posted by Poker Player

What are the "pulses" per face? Sorry guys I really don't know what that phrase means..

basic compression test...

pull a spark plug, turn the crank, listen for a "pulse". should be 3 per side.

Reply Like

09-08-10, 02:35 PM

#29

Black Knight RX7 FC3S

Turbo power, activate!

iTrader: (7)

Join Date: Nov 2002

Location: Philadelphia

Posts: 1,708

Likes: 16

Received 5 Likes on 5 Posts

I think he meant 35 psi on all 6 faces lol
But even then...I pulse at 90psi on my front rotor....85 on my rear....

isnt 35 low

Reply Like

06-25-11, 01:03 PM

#30

RevinRx7

Concerned Citizen

iTrader: (3)

Join Date: Nov 2001

Location: Miltown, WI

Posts: 699

Likes: 0

Received 0 Likes on 0 Posts

I installed the CAS gear upside down.. took me 2 years and a 3rd rebuild to figure that out.

Reply Like

06-26-11, 06:05 AM

#31

Jross427

Going Nowhere

iTrader: (13)

Join Date: Oct 2007

Location: sacramento

Posts: 462

Likes: 0

Received 0 Likes on 0 Posts

Fresh rebuild and the "stock" ports the original irons had ate a side seal. Cleanly took out every seal on that side, and costed me a rotor. Atleast the brand new housings didnt get harmed, i would have shot myself.

Reply Like

06-26-11, 03:07 PM

#32

arghx

rotorhead

Thread Starter

iTrader: (3)

Join Date: Aug 2004

Location: cold

Posts: 16,184

Likes: 125

Received 431 Likes on 264 Posts

Quote:

Originally Posted by RevinRx7

I installed the CAS gear upside down.. took me 2 years and a 3rd rebuild to figure that out.

Holy crap. I remember being a little confused when I first read about the orienting the beveled side but man that sucks.

Reply Like

06-26-11, 11:12 PM

#33

papiogxl

What's the point??

iTrader: (6)

Join Date: Oct 2005

Location: Omaha, NE

Posts: 995

Likes: 0

Received 0 Likes on 0 Posts

I forgot sealant on the "legs" of 3/4 housing faces.

Then it just popped an oil cooler line off while idling in the garage, apparently the push-lok hose wasn't all the way onto the fitting. Ever see 4 quarts of oil sprayed all over a bunch of kids toys? Not pretty. Lol.

Reply Like

06-26-11, 11:28 PM

#34

J5sense

Senior Member

iTrader: (3)

Join Date: Jun 2011

Location: West Chicago

Posts: 420

Likes: 0

Received 1 Like on 1 Post

damn. Just what i want to read before starting my rebuild! lol I never rebuilt a rotory but have a 300zx build and many honda motors under my belt.

Reply Like

06-27-11, 10:27 AM

#35

j9fd3s

Moderator

iTrader: (3)

Join Date: Mar 2001

Location: https://www2.mazda.com/en/100th/

Posts: 30,954

Likes: 2,199

Received 2,680 Likes on 1,896 Posts

Quote:

Originally Posted by papiogxl

it moves a lot of oil really quick!

Reply Like

06-27-11, 12:50 PM

#36

RotaryEvolution

Sharp Claws

iTrader: (30)

Join Date: Oct 2003

Location: Central Florida

Posts: 5,107

Likes: 0

Received 41 Likes on 40 Posts

best one i've done is a corner seal boot popped out while putting the rear iron on, the seal managed to get stuck right between the rotor housing and iron. when i pulled it apart there was an apex seal corner seal boot pressed flat into the rotor housing..