Fusible link after replacing head

[mcr_driver]

After I replaced my 885 head due to a prematurely snapped timing belt I can not start my car. everything is buttoned up belts are in place. there is fuel already tested for spark. the car cranks over but won't stay cranked. checked the fusible link and received no voltage. What is the best way to replace this link? There isn't a lot of slack and I don't want to cut the wire. Seems like such a stupid question but want to be sure need to get this car going so I can go to school and work tomorrow.

[mcr_driver]

Replaced the link was able to get a little give out of it, but the car still won't start...suggestions?

[SmokeE30]

did you mix up the cam and crank position sensors, its easy to do as they both are the same and next to each other

[mcr_driver]

double checked both. not sure how people get them confused actually..i never had a problem with it as one is upside down from the other.

[MR 325]

So it's cranking with no start? Did you pre-adjust the valves? If they're far out of spec it could keep it from starting.

[nando]

there is no cam position sensor.

OP are you positive your timing belt is on correct?

Yes, there is, but it only knows when cyl 6 is firing.

So many unhelpful posts in this thread... I think jlevie has a fix for the fuseable link that is pretty simple.

[MR 325]

So many unhelpful posts in this thread...

Good morning to you too my darling.

[jlevie]

If the engine cranks, fires, then dies the cause is probably not the fusible link. It powers the DME and if bad the engine will not fire at all. Intake leaks, a fuel system problem, or a flaky CPS are more likely to be the cause in this case. You have to disturb the wiring of the CPS to change the timing belt (or the head) and it isn't known for an old CPS to give problems after that. In a like manner it is easy to introduce intake leaks when the head is re-installed.

[nando]

Good morning to you too my darling.

Wasn't referring to you, but to the ones that obviously didn't read the whole post or were blatantly misinformative.

If you want to help, great, but if you're not really certain, a misinformative post is less helpful than none at all.

[dnguyen1963]

I dont see any unhelpful posts, car wont start is a pretty generic question. Theres lots of crap it can be. Being that the head was off and it ran before sounds like timing, leaks, valves ect all stated already.. Op says he has fuel and spark. How can there be bad answers when the question doesnt even make sense. Car cranks but wont stay cranked? Wtf does that mean?

I think OP meant the car cranked, started briefly then died. This symptom is often a result from bad CPS.

[nando]

I dont see any unhelpful posts, car wont start is a pretty generic question. Theres lots of crap it can be. Being that the head was off and it ran before sounds like timing, leaks, valves ect all stated already.. Op says he has fuel and spark. How can there be bad answers when the question doesnt even make sense. Car cranks but wont stay cranked? Wtf does that mean?

Saying there Is no cam sensor, when there is, is wrong and unhelpful.

[Ceeker]

I think OP meant the car cranked, started briefly then died. This symptom is often a result from bad CPS.

would have to agree; swap out the cps and see what happens. not very difficult to do but you will have to unplug it from the connector housing to test it if you run it along the top of the rad hoses. I had to do that to one of mine.

[Ceeker]

I think OP meant the car cranked, started briefly then died. This symptom is often a result from bad CPS.

would have to agree; swap out the cps and see what happens. not very difficult to do but you will have to unplug it from the connector housing to test it if you run it along the top of the rad hoses. I had to do that to one of mine.

[jlevie]

Crank sensor plug is next to the rpm sensor plug (or whatever the technical name is), that runs to the number 6 plug wire correct? Which gives you your tach signal?

The connector beside the CPS connector is for the Cylinder ID sensor (on the #6 plug wire) and is used for timed sequential injection. The tachometer signal is generated by the DME from the CPS data.

Is that the cam sensor? I searched for hours trying to find something on a cam sensor on an m20 and found nothing. Where is it?

An M20 engine does not have a camshaft sensor.

[Ceeker]

if you look down on the right front of the engine just next to the a/c compressor you will see a black plug held in by an allen key. that is your CPS. that wire runs behind the upper rad hose and behind the therm housing into the bracket with the injection timing plug sits.
remove that and replace it with a good one to eliminate the potential problem.