Answering this question is difficult without a year and motor size provided. I have experience with many Cougars from 1987 on - and all but one were completely timed by the computer without a distributor.
The 3.8l engines 1994 and newer all had computer-controlled ignitions with coil packs and a crankshaft position sensor, so it is timed with software and is not modifiable.
The 1999 and newer engines were all computer-controlled.
Many V6 motors before 1994 were mechanically timed with a distributor, but I did own a 1993 with a computer-controlled setup. The distributor-based engines in those years are all timed according to the standard procedure.
I like to use Valvoline synthetic and have had good luck with it.
Only the 2.3L HSC Inline 4 will fit in the 1986 Mercury Topaz. If everything in the engine bay were gutted, perhaps something larger such as a 3.0L V6 from a 1992-1994 model MIGHT fit but it would require a complete running 92-94 Ford Tempo or Mercury Topaz with the V6 engine as a donor car (and, if you could find such a car, it would be more worth your time/money to invest in it v.s. a 1986 model). The automatic transmission from a Taurus WILL NOT WORK in a Tempo/Topaz.
The 2.3 liter 4 cylinder and the 3.0 liter V6 have a timing CHAIN
You go with a 350 instead.You need the engine with it's computer chip (you can place it into the v6 computer), knock sensor, injectors and TB unit, but since you are getting a complete 350 (and bypassing the 305), you'll have everything you need.Move the v6 mounts up a few inches to the v8 mount holes and bolt back in.Drop engine in place.Done.
4g63, you will need a new trans, engine wire harness, all accessories, like ac compressor, and alternator, and ecm. and engine mounts...fits perfectly. or you could use a v6 from an avenger or sebring.
Is this a trick question , because there wasn't a 1998 model year for the Mercury Cougar The 1997 Mercury Cougar , with the 3.8 liter V6 engine , has a ( 18.0 US. gallon tank The 1999 Mercury Cougar , with the 2.5 liter V6 engine , has a ( 15.4 US. gallon tank )
On a 1997 Mercury Cougar : The engine oil dipstick is on the drivers side of the engine ( for the 3.8 liter V6 and the 4.6 liter V8 )
1991 mercury cougar i need to know the egnition timing engine is a 3.8 v6.
The 3.8 liter V6 engine in a 1991 Mercury Cougar has a timing CHAIN
the 99 mercury cougar inline 2.0L engine has 125 hp and 131 lbs/feet of torque the v6 cougar 2.5L engine has 170hp and ? lbs/feet of torque
According to one of Fords websites : For the 1992 Mercury Cougar , 3.8 liter V6 engine : ( the spark plugs are gapped at .054 inch )
Pretty sure its 34mm
According to the 2002 Mercury Cougar Owner Guide : The 2.5 liter V6 engine takes : With engine oil filter change : ( 5.5 litres / 5.8 US. quarts of 5W-20 engine oil )
According to one of Fords websites : For the 3.8 liter V6 engine in a 1988 Mercury Cougar : ( the spark plugs are gapped at .054 inch )
The 2.5 liter " Duratec " V6 engine used in a 1999 Mercury Cougar uses ( 2 ) timing CHAINS , both located at the front of the engine ( 1 chain to each cylinder head )
For a Mercury Cougar , 2.5 litre V6 engine : According to the 1999 to 2002 Owner Guides : ( Motorcraft FL-820 engine oil filter )
The Owner Guide for the 1999 Mercury Cougar shows ( 5.8 quarts with filter change ) for the 2.5 liter V6 engine