cranks no start sr
cranks no start sr
well i just finished my swap on my s13 and tried to crank it it cranks strong but all it does is back fire . checked timing , injectors, coil packs, fuel pump, and the wiring dont know what else to check. any help would be great . thanks
Re: (Hijacker)
do i just reset the timing on the cam angel sensor o do i set the timing completly
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duffman1278
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Hijacker
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'94 F-150 - Location: Fredericksburg, VA
I've done that recently, and my CAS was off 5 degrees at its max adjustment. I pulled it out, rotated it one gear tooth and reinserted, and it was off 5 degrees the other direction.
The last time I readjusted a 180 off CAS was to set the crank to TDC compression and spin the CAS 180 degrees and then reinsert.
The last time I readjusted a 180 off CAS was to set the crank to TDC compression and spin the CAS 180 degrees and then reinsert.
Re: (Hijacker)
thanks ill try it and hopefully it works
Re: (whtghost)
followed these instructions and everything is fine . if i did something wrong please correct me
How To Set CAS Timing on the SR20DET
Resetting your engine's timing back to factory setting is pretty straightforward thanks to the markings provided on the CAS, cams, and pulleys.
This guide assumes that the timing chain is installed correctly. If there is any doubt on the installation of the timing chain, do not proceed as damage to your pistons/valves can occur.
Hand crank the engine until the two dark chain links line up with the notches on the cam sprockets. When the links line up with the notches, the timing marks on the pulley, the cam sprocket notches, and the dark links should be in a similar position as shown in the image below (Fig. 1), but with the crank pulley set to the 2nd mark to the left instead of the 1st.
Figure 1
After lining up the crank/cams, remove the two bolts holding the CAS, unplug it, and remove it from the cylinder head. On the CAS, there will be two notches on the shaft that are right next to each other. Looking at the CAS with the black cap towards your body, rotate the shaft until the right notch lines up with the notch on the CAS housing. Put the CAS back into the head carefully. If this procedure is done correctly, the second notch on the shaft should now line up with the notch on the housing, and the CAS position (can rotate it +-30 or so degrees...) should be centered. See image below for correct positioning of the CAS.
Replace the screws & plug in your CAS. Start your engine and let it warm up to normal operating temperature. After warmup, your engine should be idling around 850rpm - check your timing with a timing gun. Stock factory timing is at 15 degrees, which is the 2nd to last mark on the crank pulley.
How To Set CAS Timing on the SR20DET
Resetting your engine's timing back to factory setting is pretty straightforward thanks to the markings provided on the CAS, cams, and pulleys.
This guide assumes that the timing chain is installed correctly. If there is any doubt on the installation of the timing chain, do not proceed as damage to your pistons/valves can occur.
Hand crank the engine until the two dark chain links line up with the notches on the cam sprockets. When the links line up with the notches, the timing marks on the pulley, the cam sprocket notches, and the dark links should be in a similar position as shown in the image below (Fig. 1), but with the crank pulley set to the 2nd mark to the left instead of the 1st.
Figure 1
After lining up the crank/cams, remove the two bolts holding the CAS, unplug it, and remove it from the cylinder head. On the CAS, there will be two notches on the shaft that are right next to each other. Looking at the CAS with the black cap towards your body, rotate the shaft until the right notch lines up with the notch on the CAS housing. Put the CAS back into the head carefully. If this procedure is done correctly, the second notch on the shaft should now line up with the notch on the housing, and the CAS position (can rotate it +-30 or so degrees...) should be centered. See image below for correct positioning of the CAS.
Replace the screws & plug in your CAS. Start your engine and let it warm up to normal operating temperature. After warmup, your engine should be idling around 850rpm - check your timing with a timing gun. Stock factory timing is at 15 degrees, which is the 2nd to last mark on the crank pulley.
Re: (whtghost)
did compression test
1st cylinder 85
2nd 85 3rd 85
4th 115
what could be the problem for the 4 cylinder to have a higher compression than all the others
1st cylinder 85
2nd 85 3rd 85
4th 115
what could be the problem for the 4 cylinder to have a higher compression than all the others
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duffman1278
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Re: (duffman1278)
i am buming this for two reasons. to have it in my saved topics. and i would like to say that when the compression is back the rings o nthe cylingers might need lubricated pour a tea spoon of oil into each of the spark plug hole and let it sit over night.