s5 t2 Just fresh rebuild hard to start
12-19-09, 08:49 PM
#1
s5 t2 Just fresh rebuild hard to start
Hey guys i just rebuild my 13b for my s5 and im issue starting i have fuel i got spark. but it just cranks and cranks but no good.... some one told me this was normal... does anyone know an trick or an easy way to start a re build?... thanks guys
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12-20-09, 03:38 AM
#8
you have fuel and spark. but what about timing...?
also, check compression. if you didnt clearence correctly or reused old seals. this could be the problem. also, the small corner piece of the apex seal has been known to flip or move around.
you should never have to put oil in a motor to start it. pouring oil is to create compression. if everything is done right, it shouldnt be needed. also, dont check compression if you already loaded it with oil. you will get an incorrect reading... the plates and housings should be lubed with either vasaline, crisco, bearing grease or similar for lubrciation upon start up. but thats it...
also, check compression. if you didnt clearence correctly or reused old seals. this could be the problem. also, the small corner piece of the apex seal has been known to flip or move around.
you should never have to put oil in a motor to start it. pouring oil is to create compression. if everything is done right, it shouldnt be needed. also, dont check compression if you already loaded it with oil. you will get an incorrect reading... the plates and housings should be lubed with either vasaline, crisco, bearing grease or similar for lubrciation upon start up. but thats it...
12-20-09, 04:45 AM
#9
Timming is good got spark got fuel cas is in the rigth position. got good fuel psi. battery is @12.6 volts at 90% state of charge... I got New apex seals and springs. I used engine oil when i assebled the engine. i didnt want to use crisco cuz that make your water seals fat and out of shape... Im going to put some engine oil down the manifold and a bit in the leading spark plugg hoes and i report my finding guys
12-20-09, 06:23 PM
#10
a well build motor with good rotor housings should start right up,if your housings are not that good and you reused some old seal or somethings is not up to specs or close to be out of specs is gonna take some effort to start but if you get lucky and you get it to run it should gain some comp but it will never be that good and you might have flooding issues and hot start problems.
try to install a fuel cut off switch and see if that help
try to install a fuel cut off switch and see if that help
12-21-09, 02:05 AM
#13
crank for about 10 seconds strait and immediatly pull the plugs. if they are wet. its flooding bad. if they are EXTREME black. they are flooding still, but not so bad. you could have a weak spark.
try starting the motor using NGK B9ES spark plugs. they are only 2 bucks each. they are designed for jet skis, but they are the only plugs i run in my motors. VERY hard to foul them out. get 4 of them, there is no leading or trailing.
try starting the motor using NGK B9ES spark plugs. they are only 2 bucks each. they are designed for jet skis, but they are the only plugs i run in my motors. VERY hard to foul them out. get 4 of them, there is no leading or trailing.
12-21-09, 02:12 AM
#15
crank for about 10 seconds strait and immediatly pull the plugs. if they are wet. its flooding bad. if they are EXTREME black. they are flooding still, but not so bad. you could have a weak spark.
try starting the motor using NGK B9ES spark plugs. they are only 2 bucks each. they are designed for jet skis, but they are the only plugs i run in my motors. VERY hard to foul them out. get 4 of them, there is no leading or trailing.
try starting the motor using NGK B9ES spark plugs. they are only 2 bucks each. they are designed for jet skis, but they are the only plugs i run in my motors. VERY hard to foul them out. get 4 of them, there is no leading or trailing.
12-21-09, 01:54 PM
#21
ok guys i check my psi numbers and there are 100+ psi on both rotors... so i got good compression... anyone have some thing they add... i think that the engine is flooded.... cuz when i pull out the dip stick the oil is some what "waterie" is that because the fuel and oil mix... im prob going to change my pluggs and oil again
Im just happy cuz i got good psi)
Im just happy cuz i got good psi
)
Last edited by J's fc; 12-21-09 at 01:54 PM. Reason: spelling
12-21-09, 03:20 PM
#22
Doesn't sound like you've narrowed it down to fuel OR spark /timing. Pull a plug. Does it smell like gas? If it's been cranking and not firing and smells like gas, you have a timing / spark problem. If it doesn't smell like gas you have a fuel problem.
12-21-09, 07:15 PM
#25
so i have a timming spark plug problem... i took my ckp sensor line the gear to the ckp housing then i stab'd it in when the my timming mark was on the yellow strip on the crank pulley. i took the top off the ckp sensor then to see if it was in the correct position. when do i know when the crank pulley is in the correct position..?