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Brett's 4.0L SOHC Swap


Stic-o

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To clear things up a bit about @Stic-o 's post about the motor mounts I build and sell. My mounts are 100% built to the 1st Gen stock mount dimensions and are a direct bolt-in replacement for them as well. Stic-o is therefore making his pan clear with only the 1/4" spacer he made + whatever distance stock mounts sag with weight on them since mine will not do that. So yes they are "custom" in a sense but the dimensions that matter in this instance are the same as a stock motor mount.
I think sag has al to do with this. Also your able to move the motor around horizontally a with these a bit which helps. As the motor will only make contact on the passenger side at the pan bolts.
 

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dezertranger

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Hey, me again. my engine mounts worked well and the engine fits. im starting to put all the OHV sensors on the SOHC and am wondering what you did for the coolant temp sender. on the sohc thersostat housing theres two spots for senders, but one of my ohv (i think the sender for the gauge) is a much bigger pipe thread than the available hole. now, im using an aluminum thermostat housing, so drilling bigger and re tapping is no biggie. i was just curious as to what you did to get a second opinion?
 


410Fortune

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how many wires on the OHV coolant sender? How many on the SOHC?
Some have two wires some have one
 


dezertranger

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how many wires on the OHV coolant sender? How many on the SOHC?
Some have two wires some have one
for the OHV group of senders, one of them has two, and one of em has one.
for the sohc, both have two.

im not sure which is which for either.

edit.
both the ohv senders/sensors are the same thread.
the sohc senders/sensor are different size threads
 
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410Fortune

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You def want the ohv sender for the gauge to remain with the engine that way the dash will work properly
Unless you are running aftermaket coolant tempo gauge?
It is also possible to modify your dash to understand the signal from the SOHC temp sender

It might be best just to tap the hole larger like you are thinking that is probably what I would do
Lets hear what Brett @Brett and others have done. They should be at home in front of their PC's alot now, so just wait :)
 


dezertranger

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You def want the ohv sender for the gauge to remain with the engine that way the dash will work properly
Unless you are running aftermaket coolant tempo gauge?
It is also possible to modify your dash to understand the signal from the SOHC temp sender

It might be best just to tap the hole larger like you are thinking that is probably what I would do
Lets hear what Brett @Brett and others have done. They should be at home in front of their PC's alot now, so just wait :)
yeah im doing all this because the main point is to use the stock cluster. i take pride in a mostly stock interior in a "race truck"
(its a ascetic thing for me)
 


410Fortune

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me too
I still have a 88 dash in my BII I put autometer gauges in the stock dashpot.... I LOVE my 1988 interior so I understand. Minwe is not built for racing, but it is built :)
 


Kirby N.

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If I remember correctly on the OHV one of those sensors is just for the guage- so using the OHV sensor would be the right thing to do there imo. IDK anything about the various roles of the other one and the best solution for it.
 


410Fortune

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the other coolant temp sensor is for the pcm

If you are keeping your 93 pcm then you should also swap that sensor to the 93 style
Did this thread never touch on this topic

check your wiring manuals or post up the wiring colors here for both sensors
 


dezertranger

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i dont know if i wasnt transparent with my original post. but yes, im trying to put my 93 sensor and sender in the sohc housing and one of the threads on the 93 sensors is bigger. so i was wondering what bret did here before i go and drill and tap my new aluminum thermostat housing.
 


410Fortune

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You are going to need to change both sensors over to the 93 sensors
You want the PCM to be happy
You want the dash to be happy
 




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