Construction and other equipment - Belly pan modifications?

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Belly pan modifications?

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=165533
Printed Date: 19 May 2025 at 3:31pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Belly pan modifications?

Posted By: Leop
Subject: Belly pan modifications?
Date Posted: 03 Nov 2019 at 11:03pm

About to put the belly pan back onto my HD-6G but before I do I wanted to run some modifications by you guys to see what you thought of them.

1) Weld four loops on the sides of the belly pan that I can use to strap it down to my transmision jack for easier R&R.

2) Weld caps on the inside of the pan over the nuts that secure the engine oil pan access pannel. This will keep dirt, water, out of the threads. Replace the exposed nuts on the bottom with Stainless and thread them into the nut with rtv on the threads to keep dirt and water out of the threads.

3) Im thinking of painting the inside a bright white color so that i can see tools that fall down there and identify the source of leaks faster.

Anyone think those are worth the trouble? Any other ideas? The goal is to hopefully make dealing with that heavy piece easier, and take it off less.

Thanks ahead of time for your ideas and feedback.

Replies:

Posted By: Coke-in-MN
Date Posted: 03 Nov 2019 at 11:43pm

Lot of work for something that doesn't come off that often
On the access panel - just use shorter bolts that don't go much through nuts and then never seize them - the pan get's dirt in it so painting is ?
I just use a floor jack as it seems whenever I pull the pan it's not a level spot

nis the silicone - use the never seize

-------------
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."

Posted By: Ian Beale
Date Posted: 04 Nov 2019 at 3:38am

Have a look at a more modern dozer with a trapdoor panel in the guards for easier cleaning, retrieval etc

And in the field lay down a sheet of steel (2 mm thick is enough for a FA 10) to run the floor jack on

Posted By: Coke-in-MN
Date Posted: 04 Nov 2019 at 2:27pm

yep plywood has a place when doing field work uderneath

Posted By: Leop
Date Posted: 04 Nov 2019 at 2:44pm

Now why didn't think of that, or Coke's idea of plywood!

Okay, one problem solved.

Posted By: Ian Beale
Date Posted: 04 Nov 2019 at 2:45pm

Coke

It might suprise you but plywood is pretty well special order here. Steel, on the other hand, - - -

Posted By: Leop
Date Posted: 04 Nov 2019 at 2:56pm

Good point about it not coming off that often, BUT .....

I am trying to get things sorted out on the oiling system for the clutch. While I cant see a leak yet there must be ine somewhere that accounts for the oil loss.

The oil loss caused the pump to be damaged. I repaired myself but im not sure how long my repairs will last while I try to find a DD pump, or machine up an adapter plate for a modern pump. In the mean time getting the pump off from the bottom has been the only way for me because I dare not touch the FI pump!

Yes, i wonder about the paint myself. How does so much crap get in there? I could see some dirt getting in, but my God, on mine it was a black hole. Especially with oil and dirt mixed "cement", three inches of leaves, rocks larger than the openings where they would have supposedly gotten in. I found three wrenches and multiple screwdrivers from prior owners, plus a few of mine.

Posted By: Ian Beale
Date Posted: 04 Nov 2019 at 8:58pm

"How does so much crap get in there?"

Never seen an HD 6 but I'm guessing from experience with an FA 10 that you will have an engine compartment that tapers towards the read and the lower engine rails will be straight. And that you likely don't have engine side screens.

So just about anything that lands on the bonnet will end up in the sump guard

I finished up doing a detailed study of the screens section in the FA 10 parts book, eventually worked out how Fiat got their design to work and did a copy. It helps, particularly if you are in a lot of sticks.

Next "round tuit" will be a trap in the engine guard