Notices
Evo Engine / Turbo / Drivetrain Everything from engine management to the best clutch and flywheel.

Randomly hard to start

Thread Tools
 
Search this Thread
 
Old Jul 13, 2016 | 09:56 PM
  #31  
kaj's Avatar
kaj
EvoM Community Team Leader
20 Year Member
Liked
Loved
Community Favorite
iTrader: (60)
 
Joined: Mar 2006
Posts: 13,634
Likes: 824
From: Fresno, CA
silly question, but was the car warmed up when you did the comp check? If you were leaking coolant from the headgasket, it would be worse while driving, once cylinder pressure built up. You should see white "smoke" from the exhaust. Then there is the milky-white substance on the oil fill and/or radiator cap. Bubbles coming through radiator while idling? Are you seeing any of those symptoms?
Your compression numbers are pretty even (My old, OEM engine had 90psi in cyl 3 for yeeears but didn't give me any problems)... so not sure a leakdown will tell much. The comp check will tell if you have a problem, the leakdown will tell you where.

Is the car smoking at all?
Reply
Old Jul 13, 2016 | 11:04 PM
  #32  
asu11's Avatar
Thread Starter
Evolved Member
iTrader: (7)
 
Joined: May 2011
Posts: 737
Likes: 1
From: AZ
Originally Posted by kaj
silly question, but was the car warmed up when you did the comp check? If you were leaking coolant from the headgasket, it would be worse while driving, once cylinder pressure built up. You should see white "smoke" from the exhaust. Then there is the milky-white substance on the oil fill and/or radiator cap. Bubbles coming through radiator while idling? Are you seeing any of those symptoms?
Your compression numbers are pretty even (My old, OEM engine had 90psi in cyl 3 for yeeears but didn't give me any problems)... so not sure a leakdown will tell much. The comp check will tell if you have a problem, the leakdown will tell you where.

Is the car smoking at all?
Yes car was fully warmed up.

Car doesn't smoke. Drives around fine and at WOT.

Figured numbers were on the low end. Not sure what the spec is for cylinder to cylinder delta.
Reply
Old Jul 14, 2016 | 11:05 AM
  #33  
kaj's Avatar
kaj
EvoM Community Team Leader
20 Year Member
Liked
Loved
Community Favorite
iTrader: (60)
 
Joined: Mar 2006
Posts: 13,634
Likes: 824
From: Fresno, CA
I could be wrong, but I think you're motor is okay.

I'm blaming my IACV, though I've swapped on another and it did the same thing.
Reply
Old Jul 14, 2016 | 11:38 AM
  #34  
asu11's Avatar
Thread Starter
Evolved Member
iTrader: (7)
 
Joined: May 2011
Posts: 737
Likes: 1
From: AZ
Yeah I think its fine since it drives normal and pulls wot fine.

Reply
Old Oct 15, 2016 | 09:52 AM
  #35  
asu11's Avatar
Thread Starter
Evolved Member
iTrader: (7)
 
Joined: May 2011
Posts: 737
Likes: 1
From: AZ
Ok guys need some help. Out of ideas.

I just changed the headgasket on the car and its still having the startup issue.

The head was completely rebuilt by curt brown. Block was untouched.

When its cold it fires right up. But after I have had it running at operating temperature for a while, it cranks over about 10+ times before it will start.

My initial theory was that it was leaking a small amount of coolant in the cylinder causing it to somewhat flood making it a little hard to start.

Anyone have an idea?
Reply
Old Oct 15, 2016 | 11:22 AM
  #36  
CDrinkH2O's Avatar
EvoM Guru
15 Year Member
Liked
Loved
Community Favorite
iTrader: (7)
 
Joined: Nov 2006
Posts: 1,147
Likes: 162
From: San Francisco
Originally Posted by asu11
Ok guys need some help. Out of ideas.

I just changed the headgasket on the car and its still having the startup issue.

The head was completely rebuilt by curt brown. Block was untouched.

When its cold it fires right up. But after I have had it running at operating temperature for a while, it cranks over about 10+ times before it will start.

My initial theory was that it was leaking a small amount of coolant in the cylinder causing it to somewhat flood making it a little hard to start.

Anyone have an idea?
Please confirm you are on SD, (you mentioned IAT in an earlier post), and then post a log of the hard startup so we can see what is happening. Make sure to include Load, TPS, RPM, Timing, WBO2, MAP/Boost psi, ISCV steps, Battery V, Coolant Temp, IAT, and IPW.
Reply
Old Oct 15, 2016 | 12:25 PM
  #37  
asu11's Avatar
Thread Starter
Evolved Member
iTrader: (7)
 
Joined: May 2011
Posts: 737
Likes: 1
From: AZ
Originally Posted by cdrinkh2o
Please confirm you are on SD, (you mentioned IAT in an earlier post), and then post a log of the hard startup so we can see what is happening. Make sure to include Load, TPS, RPM, Timing, WBO2, MAP/Boost psi, ISCV steps, Battery V, Coolant Temp, IAT, and IPW.
Yes am still on SD.

I'll post up a log here in a few.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bboyirra
Evo Electrical / Audio / Security
5
Sep 17, 2013 11:55 AM
L888Apex
Evo General
20
Oct 30, 2012 07:47 PM
Laggin Wagon
Evo X General
6
Aug 15, 2012 01:26 PM
boostedawd
Evo Engine / Turbo / Drivetrain
9
Aug 16, 2008 12:10 PM




All times are GMT -7. The time now is 12:22 PM.