The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

Bottom-end difference in cycles?

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

thereef

10+ Year Contributor
100
0
Oct 5, 2010
Wichita, Kansas
Alright so I'm fairly certain the Talon I bought skipped some teeth, took out a single valve and so I started tearing her apart.

The heads off, the cams are out, and all of the belts are off. I got a little ahead of myself, didn't read carefully enough & pulled some rookie mistakes.

So time to do things right, read, ask & absorb information.

Now I want to reset timing to factory. I've got the crank pulley off, so now I'm down to the sprocket. I have the bottom-end set to TDC, did this prior to removing the pulley. Now I want to know if the bottom end has 4 different cycles, or if it's the head that creates the environment to give us the 4-cycles

If I align my cams as has been outlined in every timing DIY article, make sure that the motor is at TDC (assuming there's only one TDC, not one during two different parts of the cycle) and put everything back together, is there anything else I'm missing?

Sorry if this is confusing, I'd be happy to elaborate if anyone needs me to. Also sorry for being a newb. Just learning & want to make sure I don't blow the motor up. I only got to drive her for a week & I sorely miss it.

Thanks fellas!
 
There are 4 different strokes in the engine(intake, compression, combustion, and exhaust). Each cycle is really controlled by the cams. As long as you have the crank at tdc(top dead center) on the number one piston, both cams lined up with the dowl pins pointing up, and the oil pump lined up with its timing mark then you are good to go.
 
That's what I wanted to hear. Just wanted to make sure that as far as the bottom-end is concerned, a stroke is a stroke is a stroke.. It doesn't know whether it's stroking for the exhaust cycle or for the power cycle is what I'm gathering from this.

Thanks for your quick response. Mucho appreciated. :D
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

  • For sale 2g 2G OEM AWD Manual Driver Front Axle
    2G OEM AWD Manual Driver Front Axle $80 + shipping & paypal feesYou must be registered to see...
    • jersygsx
    • Updated:
    • Expires
  • For sale 4G63 6 Bolt Oil Pump Pickup
    6 Bolt Oil Pump Pick Up $60 + shipping & paypal feesYou must be registered to see element.You...
    • jersygsx
    • Updated:
    • Expires
  • For sale 2g 2G AWD Fuel Pump Hanger
    2G AWD Fuel Pump Hanger $200 + shipping & paypal feesYou must be registered to see element.You...
    • jersygsx
    • Updated:
    • Expires
  • For sale 2g 2G AWD Fuel Level Sending Unit
    2G AWD Fuel Level Sending Unit $85 + shipping & paypal fees* this is not the fuel pump hanger...
    • jersygsx
    • Updated:
    • Expires
  • Wanted Spyder decal for rear bumper MR300306
    My '98 Spyder GS-T lacks the decal on the rear bumper that denotes the car as a Spyder (my...
    • 98MaroonSpyder
    • Updated:
    • Expires
Back
Top