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  #21  
Old 05-15-2017, 08:25 AM
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Default Re: New Thiokol Spryte

What I see is the heat exchanger (copper coils) in the diff lid. This setup has the diff and aux hydraulic oils separate. Aux oil cooling the diff oil somewhat.

There would be hoses connected to the bottom-front of the diff case if there is diff oil circulating, otherwise they are plugged.
-Pat
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  #22  
Old 05-15-2017, 05:05 PM
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Default Re: New Thiokol Spryte

Thank you Snowcat Pat,
That makes totally sense. I had not thought about that!!!
There are two plugs at the bottom. I have been looking for the spot of the differential temperature gauge. It had been disconnected at the electrical panel. Is it possible that the bottom one on the driver's side would be that spot to re-install a temp gauge?
JB
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  #23  
Old 05-16-2017, 09:23 AM
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Default Re: New Thiokol Spryte

I've seen the temp sender there, appeared to be factory installed, in the socket hex of the plug. Hard to engage the hex(s) to remove/install.

I prefer using the fill level plug on the back of the case. More accurate readings I think.

Either way just having a working diff temp gauge is essential.

-Pat
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  #24  
Old 06-12-2017, 11:57 AM
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Default Paint questions on Thiokol Spryte

Hello,
I have seen posts related to paint strippers, primer, and paint on aluminum, but after searching every post I can't find anything.
What do you all think about Methylene chloride? Any other options?

I don't have access to a paint booth and plan to do the work outside (we are in the forest, 7,200 ft altitude).

The front cabin is aluminum (I will have to change several panels), but the back is steel welded onto the frame. So I have to strip, prep, and paint two different metals.

Also the joint between the front (aluminum) and the back (steel) is leaking. I was thinking about covering the whole thing with insulation (glue foam) and cover the whole thing with two panels (dimensions are 4' x 11'.

Would you recommend aluminum or steel?

Thank you for your help!
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  #25  
Old 06-12-2017, 12:04 PM
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Default Re: New Thiokol Spryte

Quote:
Originally Posted by Snowcat Pat View Post
I've seen the temp sender there, appeared to be factory installed, in the socket hex of the plug. Hard to engage the hex(s) to remove/install.

I prefer using the fill level plug on the back of the case. More accurate readings I think.

Either way just having a working diff temp gauge is essential.

-Pat
Hi Snowcat Pat,

I have found my self in the middle of other problems. Transmission is leaking and has to be removed and we had another 5" last night. That winter does not seem to go away.
When the snow starts melting I will drain that oil from the differential.
You had said that you prefer using the fill level plug on the back of the case.

How do you do that? If this is the fill plug that would mean that the sender is above the oil level? Do you drill and tap that bolt to install a temp sender? Is it subject to damage.

Thanks for your help.

JB
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  #26  
Old 06-19-2017, 10:39 AM
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Default Re: New Thiokol Spryte

Here is one example of the temp sender.

Also a pic of what those coils look like.

-Pat
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  #27  
Old 06-21-2017, 01:37 AM
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Default Re: New Thiokol Spryte

Thank you!
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  #28  
Old 06-25-2017, 12:20 AM
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Default Re: New Thiokol Spryte

Feeling depressed...
I can't get the engine + transmission out of the Spryte. I removed the snow plow, the heavy duty plow bracket, the radiators (three of them), the top cab, the hydraulic pumps and hoses. Now the disk brake is stuck and I am removing that as well.
Help!!!!
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  #29  
Old 06-25-2017, 12:34 AM
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Default Re: New Thiokol Spryte

Will the crane break? What is the total weight engine + transmission?
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  #30  
Old 06-25-2017, 12:43 AM
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Default Re: New Thiokol Spryte

Scary moments...
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  #31  
Old 06-25-2017, 12:46 AM
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Default Re: New Thiokol Spryte

Chains, slings, ratchets...Whatever. That engine + Transmission is stuck
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  #32  
Old 06-25-2017, 11:05 AM
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Default Re: New Thiokol Spryte

Will the crane break? What is the total weight engine + transmission?

Scary moments....

SNOW
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  #33  
Old 07-07-2017, 09:54 PM
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Default Re: New Thiokol Spryte

So did you get the engine out?
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  #34  
Old 07-18-2017, 02:11 AM
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Default Re: New Thiokol Spryte

I did! In the process of repairing the engine + transmission and few other things (I mean a lot of other things).
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  #35  
Old 07-20-2017, 01:30 AM
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Default Re: New Thiokol Spryte

Success -

Looks like you have a few leaks on/in your oil pan. Good time to address them! I am lucky compared to you. I just have to get my slave cylinders rebuilt. After 50 years of service, it was their time.
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  #36  
Old 09-15-2017, 12:07 AM
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Default Re: New Thiokol Spryte

Hello Pat,
I am finishing the rebuild. What temperature range should I expect on the differential temp gauge?
Thank you so much for your help again
JB
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Here is one example of the temp sender.

Also a pic of what those coils look like.

-Pat
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  #37  
Old 09-15-2017, 12:13 PM
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Default Re: New Thiokol Spryte

Maybe this will help.

OC-12 temperature rules:
140F-160F is ideal.

180F is getting too hot, and you'd best slow down and make crisper turns.

200F and you’re doing damage, you will be at210F shortly.

210F and if you're still driving the temp will runaway,
you must stop and get it back down to 180 or less.

IF 180 degrees F. is exceeded for fairly long periods, rapid deterioriation
of steering bands, drums, gears and bearings occur.


At 210F and higher, imagine how hot it’s getting at the
brake band/drum contact area...

[From the LMC 1200c manual ~1989/1990] Diff temp gauge:
This gauge registers the temperature of the oil in the differential.
The normal absolute maximum temperature (with DN-600) fluid during continuous operation is 180 degrees F. If the differential exceeds this temperature, stop the vehicle to permit cooling. If 180 degrees F. is exceeded for fairly long periods, rapid deterioration of steering bands, drums, gears and bearings may occur.

-Pat
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  #38  
Old 09-15-2017, 09:11 PM
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Default Re: New Thiokol Spryte

I had a new driver running our 1200 and I noticed how smooth his turns were. He thought he was doing great until I showed him 180 on the temp gauge. We stopped for a few minutes and it dropped fast.
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  #39  
Old 09-20-2017, 11:57 PM
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Default Re: New Thiokol Spryte

Engine is going back in: new coil and distributor, rebuilt starter and transmission, and new gaskets and seals
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  #40  
Old 09-20-2017, 11:59 PM
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Default Re: New Thiokol Spryte

new electronic distribution
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