Forums Forums - Off Topic Forum FUN




Go Back   Forums Forums - Off Topic Forum FUN > Snow Trac ST4, Kristi, Thiokol/LMC, Tucker, Bombardier & Other Snowcat Discussions > Snowcat Adventure & Usage Forum

Snowcat Adventure & Usage Forum Snow Trac, Kristi, Thickol/LMC, Tucker, Bombardier stories & discussions

Reply
 
Thread Tools Display Modes
  #1  
Old 03-06-2018, 06:21 PM
PJL's Avatar
PJL PJL is offline
Bronze Member
 
Join Date: Nov 2015
Location: Western Washington
Posts: 580
Thanks: 529
Thanked 530 Times in 225 Posts
PJL is on a distinguished road
Default Rattlesnake radio site

Today I ran a radio tech up to one of our repeater sites near North Bend to make a minor repair. We only needed to go about 5 miles but there is 3-4 feet of fresh powder up there. It was quite warm but the weather was stunning. Yesterday I added a small bilge blower in an attempt to keep the carb cool and prevent the vapor locking. It helped but when I left it running to cut a downed tree it still stumbled and stalled twice after we were done cutting. But it was warm out and I had been driving up a steep hill with the throttle wide open for some time.
Attached Images
       
Reply With Quote
The Following 14 Users Say Thank You to PJL For This Useful Post:
aaron tucker (03-07-2018), BearGap (03-06-2018), DAVENET (03-07-2018), jim slagle  (03-06-2018), KickerM (03-07-2018), Kristi Kt-4 (03-06-2018), mikemikelle (03-06-2018), nikos (03-07-2018), Northcoast (03-06-2018), pixie (03-06-2018), Pontoon Princess (03-06-2018), sno-drifter (03-17-2018), Sno-Surfer (03-08-2018), wbuffetjr1 (03-07-2018)
  #2  
Old 03-06-2018, 10:23 PM
Northcoast Northcoast is offline
Bronze Member
 
Join Date: Jul 2010
Location: calif.
Posts: 340
Thanks: 1,009
Thanked 80 Times in 53 Posts
Northcoast is on a distinguished road
Default Re: Rattlesnake radio site

Really great pictures! Was your cat owned by the sheriff's dept. or?
Reply With Quote
  #3  
Old 03-06-2018, 10:30 PM
PJL's Avatar
PJL PJL is offline
Bronze Member
 
Join Date: Nov 2015
Location: Western Washington
Posts: 580
Thanks: 529
Thanked 530 Times in 225 Posts
PJL is on a distinguished road
Default Re: Rattlesnake radio site

Not was, still is. We use it primarily for search and rescue. Or runs to the mountain top radio sites. Last winter I made four trips for radio repairs.

It came to us via the 1033 program. The Navy had it and surplussed it. We got it for free. It's a 1988 LMC1200. Had about 280 hours on it. About 350 now. It's in pretty nice shape for a 30 year old cat.
Reply With Quote
The Following 2 Users Say Thank You to PJL For This Useful Post:
aaron tucker (03-07-2018), Sno-Surfer (03-08-2018)
  #4  
Old 03-06-2018, 10:39 PM
jo5 jo5 is offline
Member
 
Join Date: Aug 2007
Posts: 54
Thanks: 1
Thanked 6 Times in 5 Posts
jo5 is on a distinguished road
Default Re: Rattlesnake radio site

If it doesn't have one I'd put a electric fuel pump on
As close to the tank as you can and below it
Sometimes turning the heater on can help
Reply With Quote
  #5  
Old 03-06-2018, 10:54 PM
JimVT's Avatar
JimVT JimVT is offline
Bronze Member
 
Join Date: Oct 2005
Location: Enumclaw WA.
Posts: 3,444
Thanks: 4
Thanked 1,203 Times in 581 Posts
JimVT is on a distinguished road
Default Re: Rattlesnake radio site

looks like a good day and saved someone a few bucks by running them up.
did you bring the tree home?
jim
__________________
Jim KF7RiN
#185 snow trac
2004 pistenbully canyon
Reply With Quote
  #6  
Old 03-06-2018, 11:09 PM
Cidertom's Avatar
Cidertom Cidertom is offline
Bronze Member
 
Join Date: Jan 2013
Location: Benton County, Oregon, USA
Posts: 780
Thanks: 385
Thanked 693 Times in 288 Posts
Cidertom is on a distinguished road
Default Re: Rattlesnake radio site

Just wondering, is there a chance you are seeing carb icing, not vapor lock? after a hard full throttle event you might have built up ice in the venturi.
Reply With Quote
  #7  
Old 03-06-2018, 11:51 PM
PJL's Avatar
PJL PJL is offline
Bronze Member
 
Join Date: Nov 2015
Location: Western Washington
Posts: 580
Thanks: 529
Thanked 530 Times in 225 Posts
PJL is on a distinguished road
Default Re: Rattlesnake radio site

Haven't tried the electric pump yet.

I left the tree there. Do you want it?

I have put my hand on the carb and it's hot to the touch. So I'm thinking vapor lock. But I like your theory.
Reply With Quote
  #8  
Old 03-07-2018, 12:41 AM
300 H and H's Avatar
300 H and H 300 H and H is offline
Bronze Member
 
Join Date: Jan 2010
Location: Iowa
Posts: 6,235
Thanks: 2,934
Thanked 2,080 Times in 938 Posts
300 H and H will become famous soon enough
Default Re: Rattlesnake radio site

I think a small piece of sheet steel mounted between the carb and manifold as a heat shield would help. My guess is fuel is boiling in the carb, as the radiant heat is heating the base and body of your carb.. Gasoline now days I fell boils at a lower point that the fuel of years ago. Maybe E10 is at fault here? I think it boils at a lower temp, due to the alcohol. Seems like I have seen this heat shield on a Thiokol at some point in the past few years.. Maybe here on the forum, I just don't remember, but I thought it was a factory deal. I have seen this set up on a 300 Ford in an industrial application, an enclosed trailer type air compressor.

I hope you find a cure for this gremlin in your machine.

Regards, Kirk
__________________
Snow trac ST4 #267
Reply With Quote
  #9  
Old 03-07-2018, 12:49 AM
bobby wilkes bobby wilkes is offline
Member
 
Join Date: Apr 2017
Location: quintette ca
Posts: 30
Thanks: 159
Thanked 10 Times in 7 Posts
bobby wilkes is on a distinguished road
Default Re: Rattlesnake radio site

I have fuel injection on my 1985 lmc 1200 It costs about a grand but no vapor lock and the cold starts are great plus the mileage improvement is nice!!
Reply With Quote
The Following 2 Users Say Thank You to bobby wilkes For This Useful Post:
KickerM (03-07-2018), wbuffetjr1 (03-07-2018)
  #10  
Old 03-07-2018, 12:58 AM
PJL's Avatar
PJL PJL is offline
Bronze Member
 
Join Date: Nov 2015
Location: Western Washington
Posts: 580
Thanks: 529
Thanked 530 Times in 225 Posts
PJL is on a distinguished road
Default Re: Rattlesnake radio site

I have been giving serious thought to a TBI system. What is on your 1200 Bobby?
Reply With Quote
  #11  
Old 03-07-2018, 01:08 AM
bobby wilkes bobby wilkes is offline
Member
 
Join Date: Apr 2017
Location: quintette ca
Posts: 30
Thanks: 159
Thanked 10 Times in 7 Posts
bobby wilkes is on a distinguished road
Default Re: Rattlesnake radio site

It is from a company called affordable fuel injection There top of the line kit even has a dodge diesel electronic throttle pedal Mine is regular pedal but the drivability is amazing
Reply With Quote
  #12  
Old 03-07-2018, 01:40 AM
PJL's Avatar
PJL PJL is offline
Bronze Member
 
Join Date: Nov 2015
Location: Western Washington
Posts: 580
Thanks: 529
Thanked 530 Times in 225 Posts
PJL is on a distinguished road
Default Re: Rattlesnake radio site

I have been looking at their website. Which system did you get? They have a legacy system and also several versions specifically for the 300 industrial. Was the install easy?
Reply With Quote
  #13  
Old 03-07-2018, 01:54 AM
KickerM's Avatar
KickerM KickerM is offline
Member
 
Join Date: Feb 2016
Location: Sebeka, MN
Posts: 75
Thanks: 258
Thanked 66 Times in 33 Posts
KickerM is on a distinguished road
Default Re: Rattlesnake radio site

Here’s the website!
https://www.affordable-fuel-injection.com

How hard was the install?


Sent from my iPhone using Tapatalk
__________________
Cowboy Logic: Bad decisions usually make good stories!

1964 Thikol 1202 CrewCab "Sold"
1972 Bombardier SV250S
1987 LMC 3700 CF
1998 M923A2 5-Ton
Reply With Quote
  #14  
Old 03-07-2018, 12:44 PM
aaron tucker's Avatar
aaron tucker aaron tucker is offline
Bronze Member
 
Join Date: Sep 2015
Location: Colorado Springs CO
Posts: 546
Thanks: 306
Thanked 645 Times in 200 Posts
aaron tucker is on a distinguished road
Default Re: Rattlesnake radio site

Quote:
Originally Posted by PJL View Post
Today I ran a radio tech up to one of our repeater sites near North Bend to make a minor repair. We only needed to go about 5 miles but there is 3-4 feet of fresh powder up there. It was quite warm but the weather was stunning. Yesterday I added a small bilge blower in an attempt to keep the carb cool and prevent the vapor locking. It helped but when I left it running to cut a downed tree it still stumbled and stalled twice after we were done cutting. But it was warm out and I had been driving up a steep hill with the throttle wide open for some time.
Niccce pics
__________________
Aaron Tucker
1978 1342 tucker sold
1953 Tucker 743
2009 Prinoth Trooper
Host of the Colorado Snowcat Jamboree
Reply With Quote
  #15  
Old 03-07-2018, 12:50 PM
bobby wilkes bobby wilkes is offline
Member
 
Join Date: Apr 2017
Location: quintette ca
Posts: 30
Thanks: 159
Thanked 10 Times in 7 Posts
bobby wilkes is on a distinguished road
Default Re: Rattlesnake radio site

I bought my 1200 from Ed out in colorodo I beleave he goes by mkntracks on here The hardest part would be welding the fitting for the o2 sensor
in the exhaust
Reply With Quote
The Following 2 Users Say Thank You to bobby wilkes For This Useful Post:
aaron tucker (03-08-2018), KickerM (03-10-2018)
  #16  
Old 03-07-2018, 11:09 PM
Cidertom's Avatar
Cidertom Cidertom is offline
Bronze Member
 
Join Date: Jan 2013
Location: Benton County, Oregon, USA
Posts: 780
Thanks: 385
Thanked 693 Times in 288 Posts
Cidertom is on a distinguished road
Default Re: Rattlesnake radio site

"I have put my hand on the carb and it's hot to the touch." Yep, that pretty much eliminates carb icing as the culprit.

I like the heat shield idea. The other thing to look at is the fuel line routing. Make certain the fuel isn't boiling by the time it gets to the carb.
Reply With Quote
  #17  
Old 03-07-2018, 11:51 PM
PJL's Avatar
PJL PJL is offline
Bronze Member
 
Join Date: Nov 2015
Location: Western Washington
Posts: 580
Thanks: 529
Thanked 530 Times in 225 Posts
PJL is on a distinguished road
Default Re: Rattlesnake radio site

I have some pieces of aluminum to make a heat shield out of. Just haven't had the time.
Reply With Quote
  #18  
Old 03-12-2018, 09:35 PM
100MPH's Avatar
100MPH 100MPH is offline
Member
 
Join Date: Nov 2014
Location: Badger State
Posts: 36
Thanks: 105
Thanked 132 Times in 23 Posts
100MPH is on a distinguished road
Default Re: Rattlesnake radio site

This is what Bombardier put on my 1989 sv252g Skidozer Ford 300ci Industrial. Thin metal plate between the intake manifold and carb with insulation board attached. They even put it on the passenger side of the engine cowl to help with the heat. I believe this is what 300H&H is referring to. I would look into apiece of cement fiber board (used behind wood stoves) auger the center out enough to insert plate between carb and manifold for mounting. Note: also the fuel filter with the return line to tank that may help also. May also source some material from Mc Master Carr.
Attached Images
   

Last edited by 100MPH; 03-12-2018 at 09:39 PM. Reason: Text
Reply With Quote
  #19  
Old 03-12-2018, 11:37 PM
PJL's Avatar
PJL PJL is offline
Bronze Member
 
Join Date: Nov 2015
Location: Western Washington
Posts: 580
Thanks: 529
Thanked 530 Times in 225 Posts
PJL is on a distinguished road
Default Re: Rattlesnake radio site

Today I brought in some tools from home and crafted a heat shield. I had some 6x12 plates of aluminum to work with. I used a hole saw, drill bits, hack saw and a file. The new base gasket is much thicker too. I had to get longer studs. I think it looks pretty good. Engine runs fine. I am hoping to try it out on Friday. We still have a lot of snow on the 70 road for a trip up to the meadows.
Attached Images
    
Reply With Quote
The Following 5 Users Say Thank You to PJL For This Useful Post:
aaron tucker (03-13-2018), Cidertom (03-13-2018), Pontoon Princess (03-16-2018), sno-drifter (03-13-2018), Sno-Surfer (03-13-2018)
  #20  
Old 03-16-2018, 07:36 PM
PJL's Avatar
PJL PJL is offline
Bronze Member
 
Join Date: Nov 2015
Location: Western Washington
Posts: 580
Thanks: 529
Thanked 530 Times in 225 Posts
PJL is on a distinguished road
Default Re: Rattlesnake radio site

Well.... It didn't work as well as I had hoped. It was better but the heat was too much for my little bilge blower. It passed away about an hour into our trip.

Probably have that AFI system installed this summer.

As you can see the weather was awful.
Beats driving a desk.
Attached Images
   

Last edited by PJL; 03-16-2018 at 07:58 PM.
Reply With Quote
The Following 4 Users Say Thank You to PJL For This Useful Post:
100MPH (03-20-2018), DAVENET (03-21-2018), Pontoon Princess (03-16-2018), Sno-Surfer (03-16-2018)
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Squak Mtn radio site PJL Snowcat Adventure & Usage Forum 3 02-07-2017 10:11 PM
Rattlesnake Mtn Repeater Repair PJL Snowcat Adventure & Usage Forum 2 01-14-2017 12:01 AM
Rattlesnake Logic Doc Open Forum 1 10-10-2014 07:33 PM
Snow Trac - Wood dash, Radio, GPS, XM sat radio? Melensdad Snowcat Restoration & Modification Projects Forum 28 10-10-2010 08:56 PM
A day at a radio repeater site Robert45 Snowcat Adventure & Usage Forum 8 03-02-2008 11:42 PM







All times are GMT -4. The time now is 08:13 PM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright © 2002 - 2018 www.ForumsForums.com