Cleaning up engine bay
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Cleaning up engine bay
im looking to clean up my engine bay a little.. first I'd like to completely remove my smog/air pump as the bearing was going out and I took the belt off. What is the easiest way to go about doing his? Another thing the previous owner removed the ac yet left a bunch of wiring harnesses and tubes (I'll post pics later) I'd like to clean this up a bit also. Are there any other things I could do to clean it up some more?
Logistics Pro
Joined: Jun 2017
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From: Edmond, OK
If the AC compressor was removed did the previous owner remove the evaporator and condenser? If not, removing these will significantly clean up your engine bay. When you remove the condenser from the fire wall you can fill any holes in the air plenum with Great Stuff expandable foam sealant available at the hardware store.
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From: Virginia
If the AC compressor was removed did the previous owner remove the evaporator and condenser? If not, removing these will significantly clean up your engine bay. When you remove the condenser from the fire wall you can fill any holes in the air plenum with Great Stuff expandable foam sealant available at the hardware store.
The early trucks had a completely different HVAC ducting system if you had factory A/C or no factory A/C. The factory A/C had the heater core behind the glove box, the non A/C had the heater core out in the engine bay. But in the later trucks they started using the same ducting system, leaving the heater core behind the glove box for both systems. The later one without A/C leaves the heater core behind the glove box, and has a nice slim air duct that goes out under the hood to the original hole in the firewall near the valve cover, getting rid of that large ugly box that sticks out.
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FTE Legend
Joined: Nov 2015
Posts: 30,959
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From: Angier, NC
If the AC compressor was removed did the previous owner remove the evaporator and condenser? If not, removing these will significantly clean up your engine bay. When you remove the condenser from the fire wall you can fill any holes in the air plenum with Great Stuff expandable foam sealant available at the hardware store.
Besides there is no way to paint it to match the factory color with out the foam melting.
Ask how I know and it was not on a spray foam firewall.
The secret trick to removing the evaporator and that large ugly housing sticking out in the way is to get a housing from a 88-up f150-f350 that did not have A/C.
The early trucks had a completely different HVAC ducting system if you had factory A/C or no factory A/C. The factory A/C had the heater core behind the glove box, the non A/C had the heater core out in the engine bay. But in the later trucks they started using the same ducting system, leaving the heater core behind the glove box for both systems. The later one without A/C leaves the heater core behind the glove box, and has a nice slim air duct that goes out under the hood to the original hole in the firewall near the valve cover, getting rid of that large ugly box that sticks out.
The early trucks had a completely different HVAC ducting system if you had factory A/C or no factory A/C. The factory A/C had the heater core behind the glove box, the non A/C had the heater core out in the engine bay. But in the later trucks they started using the same ducting system, leaving the heater core behind the glove box for both systems. The later one without A/C leaves the heater core behind the glove box, and has a nice slim air duct that goes out under the hood to the original hole in the firewall near the valve cover, getting rid of that large ugly box that sticks out.
FYI 2 hole non-AC firewall
3 hole AC firewall
Dave ----
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Tuned
Joined: Feb 2014
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From: prineville
The secret trick to removing the evaporator and that large ugly housing sticking out in the way is to get a housing from a 88-up f150-f350 that did not have A/C.
The early trucks had a completely different HVAC ducting system if you had factory A/C or no factory A/C. The factory A/C had the heater core behind the glove box, the non A/C had the heater core out in the engine bay. But in the later trucks they started using the same ducting system, leaving the heater core behind the glove box for both systems. The later one without A/C leaves the heater core behind the glove box, and has a nice slim air duct that goes out under the hood to the original hole in the firewall near the valve cover, getting rid of that large ugly box that sticks out.
The early trucks had a completely different HVAC ducting system if you had factory A/C or no factory A/C. The factory A/C had the heater core behind the glove box, the non A/C had the heater core out in the engine bay. But in the later trucks they started using the same ducting system, leaving the heater core behind the glove box for both systems. The later one without A/C leaves the heater core behind the glove box, and has a nice slim air duct that goes out under the hood to the original hole in the firewall near the valve cover, getting rid of that large ugly box that sticks out.
please ... clarify "early" and "later" im retrofitting a/c into an 85 and this is very helpful what u are telling usinfo.
FTE Legend
Joined: Nov 2015
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From: Angier, NC
I am thinking ours are 1980-1986 and he said "88-up f150-f350".
So my guess is 88-up is the later?
My other guess is they made the same firewall for both AC & Non-AC truck un-like ours, see my picture above.
I wanted to swap AC into a Non-AC truck and told the firewalls were different. Well my fix was to swap firewalls so the AC parts would fit my truck.
Some of the holes are covered to keep over spray out of the inside of cab.
Dave ----
So my guess is 88-up is the later?
My other guess is they made the same firewall for both AC & Non-AC truck un-like ours, see my picture above.
I wanted to swap AC into a Non-AC truck and told the firewalls were different. Well my fix was to swap firewalls so the AC parts would fit my truck.
Some of the holes are covered to keep over spray out of the inside of cab.
Dave ----
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From: Virginia
Putting the A/C IN, it will not be helpful. Take it OUT is when the later parts become helpful. I don't know many details, but I noticed this setup on a 1989 f350 chassis/cab dump truck I was working on. The challenge may be finding a truck without A/C, is seems it got more and more common in the later trucks.
Logistics Pro
Joined: Jun 2017
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From: Edmond, OK
That's a good idea.
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