Topic: need some help...crank no start 22r

[Redfred018]

ok i just change my head/rebuilt the carb and now i have a crank/no start...recheck timing/ spark thats good...the choke closes on carb like its suppose to...i have fuel/float level is good....i copied the vac line off of my roomates...their both 81s with stock aisin carbs.....any ideas cuz iam  trying to fig this out 

[toyotanner]

well you have fuel and spark, did you check compression?... although i would assume it ran with good compression before you swapped the head

[Redfred018 [OP]]

no i dont have a comp tester at home...calling a buddy to see if he has one i could use....the reason why i change heads was cuz 1 my exhaust stud/holes were messed up and sumone tryed to fix it and it didnt work so i had a bad exhaust leak at the head 2nd no 2 spark plug  hole was messed up and the plug didnt sit rite in the hole

edited your foul language,  next time I'll delete

[toyotanner]

is it making any like backfiring sounds? or even trying to start?

[Redfred018 [OP]]

we just jumped it to my roomates cummins cuz the battery was dieing....got it to back fire out of the carb

[IronClad]

ehhhhh sure the dist isnt 180 out ?

[Redfred018 [OP]]

the crank is at '0'....both no 1 rockers move...yes the values are adjusted.....the mark on the cam is at 12 clock....the rotor is in the rite spot allso

[Sparkplug]

you got it 180 out i bet, put it at tdc again, upll the cap off the dizzy and then pull it ou and rotate it 180 degrees

[Redfred018 [OP]]

u mean rotate the crank 180 then put the dizzy back in right?

[IronClad]

No that is not how it works. Find top dead center for cyl 1 and put the dist in accordingly which is roughly the 11 o clock position.

[Redfred018 [OP]]

ok well just set it how the fsm saids to....put the crank at 8 btdc...put the dizzy back in once the dizzy is all the way in it sits at 10-11 clock....once i did this its back firing out of the carb

[toyotanner]

firing order?

and you can always pull the #1 spark plug and make sure the cyl #1 is at top of stroke when at 0

[Redfred018 [OP]]

firing order its right. just read about the FSM about the timing chain install. one shiny link is supposed to line up with a mark on the crank and then two shiny links are supposed to line up on the cam sprocket. which on my truck it is off. could this cause a timing issue?

[Sparkplug]

Its a 4 stroke engine. You need to have it on the compression stroke, at top dead center. This is when the number 1 piston, at the front, is at the very top o its stroke, you then insert the dizzy into the hole with the rotor gfacing straight up, 12 o clock, AS YOU PUSH IT IN, it will rotate backwards to abouts the 11 o clock position.


edit; Those marks on the chain are for install. They only lione up when you install, and then like every 32 or soemthying revolutions. If youy just took the head off and slapped a chain on, your is prob not put together right at all. First thing first is to pull the dizzy out, and compression check it. If its not 120 or higher, you put it together wrong

[Snowtoy]

Yes, having the t-chain on incorrectly will cause problems.  IIRC, the t-chain is either 1/2 a link or a complete link longer on one side than the other, when counting the links between the lighter colored links.

It is possible to have the timing set perfectly, good compression, and still be 180* out.  If you are getting backfire out the carb. it is also a sign that are still 180* out, i.e. you are getting spark w/the intake valves open.  

[Redfred018 [OP]]

i just put the chain on when i replaced the head without lining those marks up

[79coyotefrg]

i just put the chain on when i replaced the head without lining those marks up

thats your problem

put number 1 at top dead center, roll cam so both intake and exhaust are closed. cam dowel should be at 12 o clock,  cam timing mark should be 1/2 tooth to the left of 12

[Redfred018 [OP]]

yup in process now doing that now. then we shall see if the carb is right haha

[Redfred018 [OP]]

ok well first off iam sure u guys have guessed iam a bit of a newb...this has been my first time pulling a motor apart etc....and got a lil too excited and just slap the timing chain on be4...

last nite pulled the timing cover back off  reset the chain...its perfect now....i went by the fsm and it said to put the duzzy in at 8 btdc....did that, still the same back firing out of the carb....so alot of u have said rotate it 180....what do u mean?

set it at 0 tdc pull the dizzy out rotate the motor 180? and 180 off the cam or 180 off the crank?

also bout to do a comp test but iam sure thats not a problem...but ill check anyways

thanks for all help!

[79coyotefrg]

ok well first off iam sure u guys have guessed iam a bit of a newb...this has been my first time pulling a motor apart etc....and got a lil too excited and just slap the timing chain on be4...

last nite pulled the timing cover back off  reset the chain...its perfect now....i went by the fsm and it said to put the duzzy in at 8 btdc....did that, still the same back firing out of the carb....so alot of u have said rotate it 180....what do u mean?

set it at 0 tdc pull the dizzy out rotate the motor 180? and 180 off the cam or 180 off the crank?

also bout to do a comp test but iam sure thats not a problem...but ill check anyways

thanks for all help!

dont do that. put the distributor in with the crank set at 0*   then when its assembled and RUNNING you will set the timing with a TIMING LIGHT pointing at the crank pulley while the engine is RUNNING and the distributor hold down bolt is just loose enough that you can turn the distributor within the slotted adjustment space

[Redfred018 [OP]]

yea i though i would try it 0 and now it seems to want to start but doesnt...also doesnt seem to be back firing out of the carb now

[Redfred018 [OP]]

also the comp tester iam borrowing doesn't have the rite adapter...so i think my co worker has a snap-on one i could use

[79coyotefrg]

yea i though i would try it 0 and now it seems to want to start but doesnt...also doesnt seem to be back firing out of the carb now

now is the time to look for fuel.  even pour a little gas (1/2 a shot glass would be plenty)
snug that bolt down that holds the dist in place, untill you get it to fire off.  you can even move it a little to see if the starting gets better

[79coyotefrg]

also the comp tester iam borrowing doesn't have the rite adapter...so i think my co worker has a snap-on one i could use

i wouldnt worry about that till it runs

[Redfred018 [OP]]

i tryed starting fluid...but ill have to   with it more tomarrow i gotta run to work now...but the bright side we r gettin sum snow today! bout damn time! hahaha





edited by 79coyotefrg -  vulgar language   

[FREAKY BEHAVIOR]

you can check if the motor is tdc by removing the #1 cylinder spark plug turn the crank pulley by hand until you see the piston at the very top looking through the spark plug hole