Author Topic: Blown head Gasket on 22r any help would be great..  (Read 3772 times)

0 Members and 3 Guests are viewing this topic.

Snowtoy

  • Offline The 2.5K Group
  • ****
  • Turtle Points: 1403
  • Male Posts: 2,583
  • Member since Sep '03
    • View Profile
Re: Blown head Gasket on 22r any help would be great..
« on: Jun 01, 2014, 12:20:17 AM »
replaced the head gasket and managed to get the whole thing together without any missing bolts. It would not fire up however :(  I think i messed up and did not make sure that the lower crank was at TDC before placing the timing chain back on the camshaft.. How many steps back do i need to go to resolve that issue? Any help is great.. i'm beyond my my skills but i'm hoping i can sort it out and that all hope is not lost.
Thanks dudes!

Basically all the way back to step one of the reinstalling of the t-chain, and if if the crank was way off when you bolted the head back on, you may be pulling the head again.  The 22r series is an interference engine, i.e., valves and pistons occupy the same space at different intervals, so if/when the t-chain breaks or the engine isn't assembled correctly, the top of the piston and the valves can/will collide.

Were the timing chain marks aligned with the cam sprocket when you put the chain on?  If so, before you start tearing it apart, pull the spark plugs(only need to pull #1, but w/all pulled it is easier to turn the crank by hand), turn the engine until the timing marks on the crank pulley aligns with "0", and check to see if the #1 cylinder is up/down, if down, turn the engine again until the #1 cylinder is at the top, then check to see if the #1 intake/exhaust valves are lose and 4 are tight, it is the same procedure as for adjusting only verifying the #1 cyl is at tdc.  If everything is correct, then the crank was likely at tdc when you put the t-chain on, which means you likely had the distributor misaligned when you installed it.  To install the distributor, remove it, turn the engine to 5 degree before tdc, align the rotor with the vacuum line ports on the distributor, and install the distributor w/the timing adjustment centered on the distributor bolt hole of the head, this should put you almost at the correct timing, enough so that the engine should fire and run.

However, if you can't get the engine and valves to align correctly, then you will need to repeat the timing chain removal/reinstall procedures, so you can verify the correct alignment of the engine and timing chain.  This wont determine if you did any damage to the valves or the top of the pistons if the crank was way off of tdc when you installed the head and t-chain, you would either have to pull the head and check everything now, or wait and do a compression test after you get it back together.

'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod

 
 
 
 
 

Related Topics

11 Replies
5254 Views
Last post Jul 29, 2003, 12:34:24 AM
by BigMike
17 Replies
9504 Views
Last post Jul 31, 2004, 09:43:35 PM
by Marlin
5 Replies
2575 Views
Last post Feb 16, 2005, 06:54:59 PM
by redneck
6 Replies
3546 Views
Last post Apr 20, 2010, 08:43:53 AM
by DFWFO
14 Replies
3751 Views
Last post Apr 02, 2013, 04:03:45 PM
by rock slider4x4