Rembrant Posted October 8, 2019 Author Share Posted October 8, 2019 Sounds good! IIRC the one on my Bronco was like 13K, a little high I thought. Put the new one on and no more cold start problem! My new coil is clearly oil filled. Of course there were no instructions with it, but while looking at other coils on Summit, I did see a note saying that oil filled coils can only be mounted in the vertical position. Is this true? The stock coil location on my '84 302 is horizontal on top of the intake in front of/beside the carb. Any comments from the experts? Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted October 8, 2019 Share Posted October 8, 2019 My new coil is clearly oil filled. Of course there were no instructions with it, but while looking at other coils on Summit, I did see a note saying that oil filled coils can only be mounted in the vertical position. Is this true? The stock coil location on my '84 302 is horizontal on top of the intake in front of/beside the carb. Any comments from the experts? Oil filled coils should be mounted vertically for two reasons. 1) it keeps the windings submerged, instead of the whole top side without a cooling transfer medium. 2) if the insulator cracks, or its seal fails, the liquid will remain in the cup instead of leaking everywhere. ***remember this used to be really nasty PCB's*** Epoxy filled coils don't have these shortcomings, and if you want it horizontal perhaps you should find one that is. Link to comment Share on other sites More sharing options...
Rembrant Posted October 8, 2019 Author Share Posted October 8, 2019 Oil filled coils should be mounted vertically for two reasons. 1) it keeps the windings submerged, instead of the whole top side without a cooling transfer medium. 2) if the insulator cracks, or its seal fails, the liquid will remain in the cup instead of leaking everywhere. ***remember this used to be really nasty PCB's*** Epoxy filled coils don't have these shortcomings, and if you want it horizontal perhaps you should find one that is. I guess I'll have to look around for an epoxy filled coil....hmmm Do you know of any brands that are off hand? Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted October 8, 2019 Share Posted October 8, 2019 I guess I'll have to look around for an epoxy filled coil....hmmm Do you know of any brands that are off hand? My Standard Automotive Products coil is direct replacement for the stock DSII coil It doesn't slosh. I can try to read the faded number, but I'm pretty sure it will come right up. It is the lighter blue, of the two they sell. Link to comment Share on other sites More sharing options...
Rembrant Posted October 9, 2019 Author Share Posted October 9, 2019 My Standard Automotive Products coil is direct replacement for the stock DSII coil It doesn't slosh. I can try to read the faded number, but I'm pretty sure it will come right up. It is the lighter blue, of the two they sell. OK, some interesting findings, I guess... I went on Rock Auto and looked at the various coils available for my 1984 F150 w/302 and in the OEM replacement group there were basically two to choose from. Standard Motor Products (The blue one) and United Motor Products (Black, like the original). I called both manufacturers, and they both told me that their coils were oil filled. The interesting part is, the guy at Standard told me that the oil filled coils cannot be mounted horizontally. They must be mounted in the vertical position. The guy at United said sure they can be mounted horizontally, Ford did it that way for years. NBD:nabble_smiley_grin:. So, I thought why not, I'll swap in this new oil filled coil, even if only temporary to see if it makes any difference. Low and behold, my original Ford coil is also oil filled (it sloshes a little bit) and IT has been laying on it's side for 35 years...lol. Interesting I guess, if nothing else. At the end of the day, the new aftermarket coil is on there, and if it made any difference in performance, it was too small to notice. I may stick the original back on and keep this one for a spare. I checked my original while still installed (and when hot) and the primary side reading was 3.0 ohms, which is out of spec. The output side was showing approx 9600 ohms, which seems OK. The new coil, cold, was reading 3.0 ohms on the primary, and 11,880 ohms on the output, so not much difference between the two I'm afraid. I think I'm just skinning my knuckles for the sake of skinning knuckles... Link to comment Share on other sites More sharing options...
Gary Lewis Posted October 9, 2019 Share Posted October 9, 2019 OK, some interesting findings, I guess... I went on Rock Auto and looked at the various coils available for my 1984 F150 w/302 and in the OEM replacement group there were basically two to choose from. Standard Motor Products (The blue one) and United Motor Products (Black, like the original). I called both manufacturers, and they both told me that their coils were oil filled. The interesting part is, the guy at Standard told me that the oil filled coils cannot be mounted horizontally. They must be mounted in the vertical position. The guy at United said sure they can be mounted horizontally, Ford did it that way for years. NBD:nabble_smiley_grin:. So, I thought why not, I'll swap in this new oil filled coil, even if only temporary to see if it makes any difference. Low and behold, my original Ford coil is also oil filled (it sloshes a little bit) and IT has been laying on it's side for 35 years...lol. Interesting I guess, if nothing else. At the end of the day, the new aftermarket coil is on there, and if it made any difference in performance, it was too small to notice. I may stick the original back on and keep this one for a spare. I checked my original while still installed (and when hot) and the primary side reading was 3.0 ohms, which is out of spec. The output side was showing approx 9600 ohms, which seems OK. The new coil, cold, was reading 3.0 ohms on the primary, and 11,880 ohms on the output, so not much difference between the two I'm afraid. I think I'm just skinning my knuckles for the sake of skinning knuckles... Interesting! (No, I'm NOT going to quote Arte Johnson.) Yes, I've seen lots of oil-filled coils on their sides over the years. Never have seen them leak. But I think your test proves one thing - you don't have a coil problem. So, what are you treating the knuckles with? Link to comment Share on other sites More sharing options...
LARIAT 85 Posted October 9, 2019 Share Posted October 9, 2019 OK, some interesting findings, I guess... I went on Rock Auto and looked at the various coils available for my 1984 F150 w/302 and in the OEM replacement group there were basically two to choose from. Standard Motor Products (The blue one) and United Motor Products (Black, like the original). I called both manufacturers, and they both told me that their coils were oil filled. The interesting part is, the guy at Standard told me that the oil filled coils cannot be mounted horizontally. They must be mounted in the vertical position. The guy at United said sure they can be mounted horizontally, Ford did it that way for years. NBD:nabble_smiley_grin:. So, I thought why not, I'll swap in this new oil filled coil, even if only temporary to see if it makes any difference. Low and behold, my original Ford coil is also oil filled (it sloshes a little bit) and IT has been laying on it's side for 35 years...lol. Interesting I guess, if nothing else. At the end of the day, the new aftermarket coil is on there, and if it made any difference in performance, it was too small to notice. I may stick the original back on and keep this one for a spare. I checked my original while still installed (and when hot) and the primary side reading was 3.0 ohms, which is out of spec. The output side was showing approx 9600 ohms, which seems OK. The new coil, cold, was reading 3.0 ohms on the primary, and 11,880 ohms on the output, so not much difference between the two I'm afraid. I think I'm just skinning my knuckles for the sake of skinning knuckles... Ford mounted the [DSII] ignition coil vertically on the back of the air conditioner compressor bracket if it had the 5.8L H.O. engine. Even though I have a 5.0L H.O.(!) engine, it has the same bracket and the hole for the bolt is already there, so I chose to mount it here instead of horizontally on the intake manifold. I think it looks better in this location, and is much easier to get to if the need arises: Link to comment Share on other sites More sharing options...
Rembrant Posted October 10, 2019 Author Share Posted October 10, 2019 Ford mounted the [DSII] ignition coil vertically on the back of the air conditioner compressor bracket if it had the 5.8L H.O. engine. Even though I have a 5.0L H.O.(!) engine, it has the same bracket and the hole for the bolt is already there, so I chose to mount it here instead of horizontally on the intake manifold. I think it looks better in this location, and is much easier to get to if the need arises: Rick, Out of curiosity, what spark plugs are you running in your 302? I would think our engines are fairly similar. I know you're running Thumper E7 heads and I'm running GT40's, but overall they'd be similar. I'm running Autolite 764 plugs, and I chose those somewhat randomly by reading online what the guys were putting in the SN95 Cobra cars. Link to comment Share on other sites More sharing options...
LARIAT 85 Posted October 10, 2019 Share Posted October 10, 2019 Rick, Out of curiosity, what spark plugs are you running in your 302? I would think our engines are fairly similar. I know you're running Thumper E7 heads and I'm running GT40's, but overall they'd be similar. I'm running Autolite 764 plugs, and I chose those somewhat randomly by reading online what the guys were putting in the SN95 Cobra cars. I am running Motorcraft copper plugs SP415 (ASF32C), with a 0.050" gap. This is a colder plug than what the stock 1985 5.0L (2V) used, but is the stock plug for the 1984 - 1987 5.8L 4V H.O. engine. And these plugs have the same heat range as your Autolite 764. Link to comment Share on other sites More sharing options...
Rembrant Posted October 12, 2019 Author Share Posted October 12, 2019 Ford mounted the [DSII] ignition coil vertically on the back of the air conditioner compressor bracket if it had the 5.8L H.O. engine. Even though I have a 5.0L H.O.(!) engine, it has the same bracket and the hole for the bolt is already there, so I chose to mount it here instead of horizontally on the intake manifold. I think it looks better in this location, and is much easier to get to if the need arises: I've seen some SBF's with the coils mounted vertically in front of the head(s) if I recall correctly? Was there a Ford bracket for this install on a Non-AC 302, or was it something homegrown by the owner? Link to comment Share on other sites More sharing options...
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