Auto Parts Search
Ford Mustang II Engine >> IGNITION FIRING ORDER ON HO ENGINES
Ignition Firing Order On
Ford 5.0L HO (High Output) Engines
There seems to be much confusion about the firing order on Ford 5.0L HO (High Output) engines.
Contrary to the plain 5.0L engine, the HO (High Output) version uses the same firing order as the 5.8L engine. This is probably the case because early 5.0L HO engines used a 5.8L marine camshaft.
The firing order for the standard 5.0L is: 1-5-4-2-6-3-7-8. The firing order for the HO engine is: 1-3-7-2-6-5-4-8. The rotor inside the distributor rotates counterclockwise on both engines (see illustration).
Using the plain 5.0L firing order on the HO engine does work, however the engines will have low vacuum and very poor idle. At higher rpm it appears to smooth out, but is very low on horse power, not at all what the customer will expect from this potent power plant.
The AERA Technical Committee
Looking for replacement Ford Mustang II engines? Visit our online Rebuilt Engines Store. Need to fix your Ford Mustang II engine? Access here the comprehensive online repair guide for your Ford Mustang II engine. Click Here to find a used Ford Mustang II engine.
Shop online for auto body parts, engines, wheels, lights...
|1978 Ford Mustang II Water Pump, Includes gaskets; A high quality, OE replacement water pump assembly; With 2 years limited TrustBuilt warranty..||$29.89|
|1978 Ford Mustang II Mirror Glass, Driver Side.||$27.11|
|2011 Ford Expedition 20" x 8.5" Alloy Wheel, Alloy Wheel; 20 X 8.5; 6 Spokes; 6 Lug; 135MM BP; New Replica; Cladded Chrome, , .||$305.50|
|1974 Ford Mustang II V6, 2.8 L, 171 CID Rebuilt Engine, OHV, carb, no exhaust crossover, Warranty: 3-Year/100,000 Mile, .||$1,452.00|
|1976 Ford Mustang II Used Condenser Assembly, 4.0, COL, 4X4 hang-on AC, Very Good.||$108.00|
|1978 Ford Mustang II Used Power Steering Pump, XPULLEY, Very Good.||$95.00|
Help me find
Search DIY repair manuals by VIN...
Need To Fix Your Car or Truck?
Try Our Repair Service Finder
Help me find