Engine Flush ...& MSD Ignition Q's
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From: Davison
Engine Flush ...& MSD Ignition Q's
Havn't been here in a while and since the warm weather is around the corner i gotta get busy on my baby
first question - I heard or read about a kerosene engine flush, i forgot what the combination of oil and kerosene it was but it sounded like a cheap way to flush my motor
Second - I installed a MSD 6A ignition before winter and i was wondering, should i gap my spark plugs bigger?? should i replace my stock Dist.?
thanks for your help
Ford Man
first question - I heard or read about a kerosene engine flush, i forgot what the combination of oil and kerosene it was but it sounded like a cheap way to flush my motor
Second - I installed a MSD 6A ignition before winter and i was wondering, should i gap my spark plugs bigger?? should i replace my stock Dist.?
thanks for your help
Ford Man
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From: Minneapolis, MN
Engine Flush ...& MSD Ignition Q's
Even better than kerosene or ATF... SeaFoam. Dump a can in the oil about 30 miles before the change. Watch out tho'. It'll really knock the crud loose.
plug gap would depend on type of cap (wide spacing), coil (high output) and wires (very important).
If the stock distributor is electronic and in good shape you should be fine. If it's worn out, repair or replace. If it's points go to electronic.
Just my 2¢
Greg
plug gap would depend on type of cap (wide spacing), coil (high output) and wires (very important).
If the stock distributor is electronic and in good shape you should be fine. If it's worn out, repair or replace. If it's points go to electronic.
Just my 2¢
Greg
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Engine Flush ...& MSD Ignition Q's
Well if I were you I would replace the MSD with a Motorcraft DSII unit and mount it 1/4" off the fender. That way I can get replacement parts in the middle of nowhere. Depending on the state of your engine you can keep or replace the dist.
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From: Davison
Engine Flush ...& MSD Ignition Q's
well, doesn't the 351m and 460 share the same distributor? if so i can just use it on my 460 build up when i get the money
Thanks for all your help
Ford Man
Thanks for all your help
Ford Man
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Engine Flush ...& MSD Ignition Q's
Yes, in the 351M/400,460, The distributor is interchangeable between them.
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From: Boise, ID
Engine Flush ...& MSD Ignition Q's
Greg's answer to your distributor and plug gap questions is right on. If the rest of your ignition is up to snuff, then by all means widen the gap out a bit. Experement around to see what you like best.
p.s. Whatever you do, don't ditch the MSD for Duraspark!!
My truck always has two spare DSII boxes strapped under the hood for one reason. They get used.
p.s. Whatever you do, don't ditch the MSD for Duraspark!!
My truck always has two spare DSII boxes strapped under the hood for one reason. They get used.
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From: Albuquerque
Engine Flush ...& MSD Ignition Q's
I beleive you can probably get out to .050 with that ignition but it will tax everything else. You need good plug wires, dizzy cap etc.
I have a friend with point type dizzy and MSD6 and he has a switch rigged up to fail back to points if he needs to.
I have a friend with point type dizzy and MSD6 and he has a switch rigged up to fail back to points if he needs to.
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Engine Flush ...& MSD Ignition Q's
Fordman, I agree with Beartracks, you can go to about .48-.50" on the gap. This assumes you have an MSD high voltage coil. The spec on the stock DuraSpark coil is .44" gap. Remember that as sparkplugs wear, the gaps widen, so gap them accordingly.
Mechanics of yesteryear did engine flushes with 1 quart kerosene as replacement for a quart of oil. Then they idled the engine until it warmed up (maybe 5 minutes), then changed the oil and filter. They didn't drive the vehicle with the kerosene inside.
Personally, I don't like engine flushes unless an engine has sticking lifters or is really gunked up. All modern motor oils have a detergent additive package that keeps the engine clean, if the oil and filter are changed regularly.
Mechanics of yesteryear did engine flushes with 1 quart kerosene as replacement for a quart of oil. Then they idled the engine until it warmed up (maybe 5 minutes), then changed the oil and filter. They didn't drive the vehicle with the kerosene inside.
Personally, I don't like engine flushes unless an engine has sticking lifters or is really gunked up. All modern motor oils have a detergent additive package that keeps the engine clean, if the oil and filter are changed regularly.
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From: Albuquerque
Engine Flush ...& MSD Ignition Q's
I like Marvel Mystery Oil if you really need to flush an engine. Wait till 50 miles before an oild change and ad a quart of it if there is room. Don't rawhide it till you change the oil and be sure to change the filter. You could do this a couple of times with inexpensive oil at short intervals till it seems clean. I would never fill an engine with kerosine etc. and run it.
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From: North of Tulsa, Oklahoma
Engine Flush ...& MSD Ignition Q's
Originally posted by Torque1st
Well if I were you I would replace the MSD with a Motorcraft DSII unit and mount it 1/4" off the fender. That way I can get replacement parts in the middle of nowhere. Depending on the state of your engine you can keep or replace the dist.
Well if I were you I would replace the MSD with a Motorcraft DSII unit and mount it 1/4" off the fender. That way I can get replacement parts in the middle of nowhere. Depending on the state of your engine you can keep or replace the dist.
Eric,
Isn't the Moto DSII the stock replacement? Why would it be mounted 1/4" off the fender? I thought the contact with the fender helped dissipate heat away from the unit by using the fender like a giant heat sink?
-Ron
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Engine Flush ...& MSD Ignition Q's
Yes it is the OEM replacement, just don't use an aftermarket brand.
Ford had a TSB that listed mounting the unit 1/4" off the fender to allow cooling air to circulate. The fender does not give any heat sink capacity.
The 1/4" space has worked for me. I haven't had a failure since, but then all of my boxes are now Motorcraft. I pick them up in the junkyard and have them tested at the local parts store. -Actually the store near me just lets me use the tester...
Ford had a TSB that listed mounting the unit 1/4" off the fender to allow cooling air to circulate. The fender does not give any heat sink capacity.
The 1/4" space has worked for me. I haven't had a failure since, but then all of my boxes are now Motorcraft. I pick them up in the junkyard and have them tested at the local parts store. -Actually the store near me just lets me use the tester...
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Engine Flush ...& MSD Ignition Q's
Ron, the only way the fender could act as a heat sink would be if there was a thermal path between the DSII and the fender. Normal mounting doesn't give that due to the gap between the circuit board and fender.
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From: North of Tulsa, Oklahoma
Engine Flush ...& MSD Ignition Q's
Originally posted by macguyver
Ron, the only way the fender could act as a heat sink would be if there was a thermal path between the DSII and the fender. Normal mounting doesn't give that due to the gap between the circuit board and fender.
Ron, the only way the fender could act as a heat sink would be if there was a thermal path between the DSII and the fender. Normal mounting doesn't give that due to the gap between the circuit board and fender.
Oh by the way, technically the outer metal housing of these modules does act as the thermal path between the DSII and fender. That's why I thought it was strange that there be a 1/4" recommended mounting space. I cut my old one open to see what was inside. (I'm one of those people that has to see what's inside of something to see how it works.) The circuit board contained lots of big resistors, diodes, rectifiers and silica epoxy, all mounted towards the metal casing to help transfer heat. The casing is also not painted to help dissipate/transfer the heat away.
I don't want to take this too far off topic from the original poster. My advice would be to definitely add some quality plug wires(don't waste yer money on Taylor wires) and some Bosch Platinum Plugs!
-Ron