Tx Jim
New Member
I don't know what brand engines you are referring to when you state turbo'd engines are lower compression than naturally aspirated but that isn't true on JD 239 CID(3.9L) engines as both types are 17.8:1 compression.
cold weather starting?
- Thread starter jiminpa
- Start date
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I don't know what brand engines you are referring to when you state turbo'd engines are lower compression than naturally aspirated but that isn't true on JD 239 CID(3.9L) engines as both types are 17.8:1 compression.
Tx Jim
New Member
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9973720wb19
Platinum Member
Is that good?
buickanddeere
Super Member
Great unless unless using turbos in series for tractor pulling.
DarkBlack
Elite Member
I was hoping I didn't have to get into the whole compression thing again, on this thread. Here's the quick, down'dirty explanation:
Published engine compression ratios are only a static snapshot of the cylinder volume. It's BDC vc TDC. Actual real "working gas" compression ratios may be very different, depending on many vaiables. Most influential, are valve timing, and turbo/no turbo.
My guess is that the tubo version of that engine has different camshaft(s), or a difference in their timing relative to the crank.
Tx Jim
New Member
First off YOU ARE THE ONE that stated compression was lower on a turbo'd engine than a naturally aspirated engine not ME. I post 2 contradictory facts they aren't different and you start complaining. Camshaft & timing I'm fairly positive won't have squat to do with compression ratio but I need to do so research to be positive.
ldman
New member
It's been unusually cold for Mississippi these past 2 weeks. Had a tree rat hired on the cheap to cut down a huge pine tree that was hit by lightning. We needed my tractor to remove the logs and debree ect... It was 15 degrees out and my old 1974 ford was froze up. As long as I pushed in the clutch and used almost a can of ether, we got her started. But I couldn't release the clutch without her going dead. I tied the clutch down and let her run for a few hours... she eventually unfroze and was ready for work... She just had some moisture in her.
devildog1
Veteran Member
My Kubota L3540 starts just like my car or truck, so easy, although it does have a Battery Tender and a freeze plug block heater I seldom use the block heater. It is in un-heated barn but out of the wind, I cycle the glow plugs once and bam it starts right up. I keep up to date with all maintenance , and before the cold winter months oil & filter is changed. I also add Power Service or Howe's to all diesel I buy in 5 gallon cans. I have owned 2 other Kubota's and all have started like this Grand L. Hope this helps your answer.
DevilDog
DevilDog
DKCDKC
Platinum Member
Newish JD 3038e turbo diesel... Shed kept, about 8 degrees last week, gave the glow plugs a few seconds and it started immediately and performed as it always does.
Last tractor was a 1974 JD 2030 diesel. Shed kept, but equipped with dual batteries and a cheap plug-in heater on a coolant hose. When needed in extreme cold, I gave the heater an hour or two, and it never failed to start. Poured out some black smoke, but started fine. Never used the ether injection port also provided.
Last tractor was a 1974 JD 2030 diesel. Shed kept, but equipped with dual batteries and a cheap plug-in heater on a coolant hose. When needed in extreme cold, I gave the heater an hour or two, and it never failed to start. Poured out some black smoke, but started fine. Never used the ether injection port also provided.