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What have you done to your HMMWV today/lately

kurtvk

kurtvk

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Gcelevator said:
Hey Kurtvk, I bought the same Tach and today I went to test some connections and at idle my tach is all over the place upon acceleration ot goes back to around 1K and up as I accelerate. How is yours working? Of course, my connection was through the generator as I have the TD engine and not the NA. Attached is a link to the video. If you can help me understand or if anyone have any ideas I would really appreciate it.

youtube.com

HMMWV Tachometer connection

youtube.com youtube.com
Click to expand...
I had the same issue when hooked up to the AC tap on the Generator, it was much better after i hooked up a voltage divider to feed the tach (4 to1 if i remember correct, made with 1 or 2 k resistors). i think the voltage out the Gen was too high for the tach. And you have to set the tach to divide the pulses also. Now, mine is hooked up to the RPM sensor for the ICE Diagnostics connector, much more accurate (1 pulse per rev)

This was my original post....... the pulses are about 30V peak

Frequency @ AC terminal on N3135 Regulator with 200A Alternator

Hi all, in the process of hooking up a Tach i got from amazon. https://www.amazon.com/ELING-Diesel-4000RPM-Tachometer-Backlight/dp/B0C7Z8NTXN/?th=1 I'm trying to figure out what the relation is between the Frequency @ AC terminal on the N3135 Regulator and the actual engine RPM's. Measuring...
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L

LeftCoast32

Member
19
48
13
Location
Surprise, AZ
With the help of a friend we hung the West Kentucky X-Doors yesterday. Long day in the heat but they turned out really nice. Next up will be to drive around on them for a few and then take them back off to paint them.
 

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G

G550

New member
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15
3
Location
SW Florida
Went to look at my first Humvee. Lots to take in but I really liked it. Very visceral and quicker off the line than I expected. It had the old AC system up front and the flat style in back which worked ok on 91 degree muggy day. The second one I looked at had the newer style AC system that runs on top of the 'dash' which I didnt get to drive. Lots of hot air coming in at my feet which Im sure there is a way to reduce that. Seller has some work to do on the one I wanted and well circle back in a week or so. Hopefully the newer style AC system puts out more air than the old style.
 
G

Greg841

Member
13
45
13
Location
WI
Got my second delivered on Friday! 2 weeks and 2 days (with two federal holidays in there) to get it, first time EUC too. 1097A2. Listed as "ran when jump started but would not restart" so I figured no batteries, I sure was surprised when I took off the seat to find two new looking hawker batteries installed. Started right up on its own and backed it off the trailer. I'm going to go through it and change all the fluids but everything I checked via dipsticks is full and looks clean.
 

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Mullaney

Mullaney

Well-known member
Steel Soldiers Supporter
Supporting Vendor
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19,390
113
Location
Charlotte NC
Greg841 said:
Got my second delivered on Friday! 2 weeks and 2 days (with two federal holidays in there) to get it, first time EUC too. 1097A2. Listed as "ran when jump started but would not restart" so I figured no batteries, I sure was surprised when I took off the seat to find two new looking hawker batteries installed. Started right up on its own and backed it off the trailer. I'm going to go through it and change all the fluids but everything I checked via dipsticks is full and looks clean.
Click to expand...
.
That's great!

BE SURE to look through startup proceedures in the "Dash 10" Technical Manual.
That will save you lots of time and money!
 
G

G550

New member
13
15
3
Location
SW Florida
G550 said:
Went to look at my first Humvee. Lots to take in but I really liked it. Very visceral and quicker off the line than I expected. It had the old AC system up front and the flat style in back which worked ok on 91 degree muggy day. The second one I looked at had the newer style AC system that runs on top of the 'dash' which I didnt get to drive. Lots of hot air coming in at my feet which Im sure there is a way to reduce that. Seller has some work to do on the one I wanted and well circle back in a week or so. Hopefully the newer style AC system puts out more air than the old style.
Click to expand...

Well that didnt work out. Seller was supposed to fix X and when that was done, I was told the engine has internal problems. I have a back up unit im looking at but on the road working at the moment till late next week. Same set up but privately owned, which I like. My thinking is that a privately owned rig might have had some more in-depth maintenance done.
 
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