CJ-7 Projects
 

  

Lightforce Lights - H.I.D. High-intensity discharge Upgrade

HEI Ignition System (GM Style) Installed in the AMC 360 V8
Getting rid of gremlins and improving performance

Installing 23,000 Volt Offroad Lights

Autogage Tachometer Installation
  

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Project CJ-7
  
Offroaders Guide
to Gearing up
for Offroad

From Basic Equipment to Well Equipped.  An extensive list guide to help you prepare your vehicle for the offroad.
  
 

  

Onboard Air
Converting a York
AC Compressor
to Pump Air


Trailering Safety and Trailer Hitch Information

 

Off-Road Truck Driving Techniques and Safety



Off-Road Lights
by LightForce Product Review / Installation.
from Off-Road Lights

 

Jeep Dana 300 TeraLow - 4:1 Gearset for the Dana 300 Transfer Case


AMC V8 Engines
From
GEN-1 Nash/Hudson/Rambler V-8s (1956-1966) through to the GEN-3 AMC Tall-deck (1970-1991)

Chevy Small-Block V8 Engines
Chevy Small-Block V8 Engines Manufactured by General Motors - Production: 1955?2002

Hemi Engine - All about the Hemi Engine

Ford Engines
4 Cylinder, 6 Cylinder, 8 Cylinder, 10 Cylinder, 12 Cylinder Ford Engines

Ford V8 Engines
8 Cylinder Engines manufactured by Ford

Ford 351 Cleveland V8 Engines
351 cubic inch V8 Engines manufactured by Ford

Chrysler Hemi Engine

AMC V8 hp/Torque, Compression & Bore/Stroke by year

Engine Size Conversion Table
Converting engine displacement from CID, Liters, C.C.

Engine Overheating Basics - 16 Common Causes of an Overheated Engine

Fan Clutch Diagnosis
How to tell if the Fan Clutch in your Cooling System is failing or has failed.

Automotive Gauges & Instrument Functions
Information they display & their importance.

 

From the
Department of Cheap   Tricks and Useful Tips

  
Ultra-Cool Hand Throttle for Free!

Jeep V8 Swap Tips

The Exploding Clutch

Radiator Protection using 6 bucks worth of material

Cracked Under Pressure - Fixing a smashed fingernail

A Cheap, effective alternative to undercoating

Home-built Saginaw Gearbox Brace for the cost of lunch!

Ammo Box Storage - Mounting Them for Quick Disconnect

Home-built Serious Skid-Plate protection for the Oil Pan for under 20 bucks!

Ramp Travel Index
RTI / Ramp Travel Index  What it is and how to calculate it, with and without the ramp.
 

 

 

 

 
Project Jeep CJ-7
  
Skid Plate protection for the Oil Pan

Back  to  Project  Index

Dept. Of Cheak Tricks

   

Although this Project CJ-7's engine is a very young crate 360 (approx 14k on it), the parts bolted onto the engine were most likely off of the original Jeep Grand Cherokee.  One of the last things that needed attention on the engine was the oil pan.  Because it was easier to remove it while it on the frame, I waited until the engine was in before dropping the pan.  My main concern was that the visible rust may have eaten too much metal off the pan to salvage it.  Once I dropped it off and cleaned it up it turned out not to be too bad.  Mostly pitted surface rust.   Nothing that some Corroless couldn't neutralize.

Special note on Coroless Rust Inhibitor...
Since the writing of this page, Corroless is now marketed as a product called Eastwood Rust Encapsulator.  Same product, same distributor, different name.

 

So first thing was to wire-wheel the outside pretty good and wash it down with Simple Green to prep it for paint.

Secondly I made sure the bolt holes were on an even plain.  What mean by that is this: when a leak is detected in the oil pan, what the first thing guys do?  Tighten the bolt down right?  Over time the bolt holes in the pan become recessed due to tightening them down too tight, one too many times.   To get a good seal you need to have a flat contact area across the entire seal.   So with a small hammer I flattened the holes that appeared to have been tightened down too hard.

With it clean and in good shape, it got a coat of Corroless Rust inhibitor.

 

    

Protection for the Vitals

I pondered the the thought of how I could install a skid plate to protect probably the most important spot on the Jeep, it's oil pan.  One good whack of a sharp rock and I could loose the life blood of the engine.  Not good.  So to coming up with a Skid Plate was a very good idea.

It finally came together in my head that there really is no good way to bolt up a skid plate but a batter idea was to attach one to the pan itself.  I thought about welding it to it.  But I thought a whack to the skid plate might rip the weld and create a hole anyway. Plus welding thin steel is hard without burning a hole in it.  Then I thought of a idea that could possibly work even better using some of the best stuff around.  Silicone. Why not simply glue the skid plate on with Silicone.  Having used it in the past in construction applications I know silicone has tremendous surface tension and using it as a glue would work well.

So I set off to create a skid plate that would not just cover the lowest part of the oil pan but the entire underside of the oil pan.  I got the width of the pan plus the totaled length of pan running across the flat areas from front to back.

Using 14 gauge steel, I cut the rectangle, then bent it to conform to the shape of the pan as close as possible.  I bent it by creating a make-shift "bending brake" with angle iron and C-clamps (see picture below).  To form around the drain plug, I used a small 5 pound sledge to create a relief bend around the plug large enough to fit a socket over the drain plug (see pictures below).


Angle iron c-clamped on the stock for leverage.

 

 

 

Above and to the left is how the bends were made in the skid plate.

    

Forming the drain plug 
relief bend in the skid plate.


    

Test for clearance of a socket.

 

   

Test fit.

 

Above a bend was made too sharp, so to flatten out the bend a little I used a section of railroad rail as an anvil and a sledge to flatten it out.

   

Once the skid plate was formed, it got a good coat of primer and paint.  The oil pan also got a few good coats of Black spray paint, drain plug included.

     

 

 

Next step, I oozed out about an entire tube of GE 50 year Silicone across the areas where the pan metal will meet the skid metal (see picture). Electrical tape was placed over the drain plug to keep it clean of silicone.  Then the silicone was worked onto the surface so it covered the whole area it was supposed to cover, not just where it when on from the tube.  This increases the surface tension and will help it to "stick" to the oil pan very well.

Then the skid plate was pressed into the silicone and excess was used to cover the sides.  Then additional silicone was put on the sides to actually add more protection to the oil pans exposed sides.  This should act as a protective cover to deflect rocks and prevent chips and rust down the road as well as possible preventing direct damage.

With adequate time to dry the oil pan was then re-installed with new seals and sealant as well as stainless steel hardware. 

Once dry, it would be VERY hard to remove this skid plate even if you were using tools.  Don't under-estimate the holding power of a two foot square area of silicone sealant.  A side benefit of using silicone is that if the skid plate ever took a whack, silicone will flex and absorb the shock of an impact.  Over all this skid plate cost only about 20 bucks and that includes buying a new gasket for the skid plate. Minus the gasket and it's really just the cost of paint and the silicone.   That's about six bucks at Walmart providing you have a source for free scrap metal.   You can't beat that for insurance on a vital organ of your vehicle.

     

Project CJ-7
Skid Plate protection 
for the Oil Pan

Back to Project Index

 

  

 

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Super Swamper Bogger
Super Swamper SSR
Super Swamper SX
Super Swamper Vortrac
Interco IROK TSL
Super Swamper LTB
Super Swamper TSL
Super Swamper TSL Radial
Super Swamper Narrow
Interco SS-M16 Swamper
Thornbird TSl Radial
Thornbird TSl Bias
Thornbird TSL
Parnelli Jone Dirt Grip
BFGoodrich Krawler
BFGoodrich MT T/A KM
BFGoodrich MT T/A KM2
BFGoodrich AT TA KO
BFGoodrich Mud King XT
Bridgestone Dueler MT
Cooper Discoverer ST
Cooper Discoverer STT
Cooper Discoverer ST/C
Firestone Destination MT
General Grabber MT
General Grabber AT2
Green Diamond Icelander
Ground Hawg Mud Tire
Hankook Dynapro MT
Hankook Dynamic MT RT01
Hercules Terra Trac MT
Hercules Trail Digger MT
Kelly-Springfield Safari DTR
Kelly-Springfield Safari MSR
Kumho Road Venture MT
Kumho Road Venture KL71
Kumho Road Venture AT
Dick Cepek Mud Country
Dick Cepek F-C II
Dick Cepek Fun Country II
Dick Cepek Fun Country Nylon
Dick Cepek Fun Country Kevlar
Mastercraft Courser MT
Mastercraft Courser HTR
Mastercraft Courser HTR Plus
Maxxis BigHorn Radial
Maxxis Creepy Crawler
Maxxis Trepador
Maxxis Buckshot Mudder
Maxxis MA-SW
Maxxis M-8080 Mudzilla
Maxxis MT-754 Buckshot
Maxxis MT-753 Bravo
Maxxis MA-751 Bravo
Maxxis MA-S2 Marauder II
Maxxis MA-S1 Marauder
Maxxis MT-762 BigHorn
Nitto Mud Grappler
Nitto Dune Grappler
Nokian Vatiiva MT
Pit Bull Rocker Extreme
Pit Bull Maddog
Pit Bull Growler
Goodyear Wrangler MT/R
Pro Comp Xterrain
Pro Comp All Terrain
Pro Comp Mud Terrain
Pro Comp Xtreme AT
Pro Comp Xtreme MT
Toyo Open Country MT
TrXus Mud Terrain
TrXus STS All Terrain
Mickey Thompson MTZ
Mickey Thompson MTX
Mickey Thompson Baja Claw
Mickey Thompson Baja Crusher
Competition Claw
Dunlop Mud Rover
Yokohama Geolandar
  

Latest trips Offroad
... trail reports with the Project CJ-7
click here.

Sounds System, Raised the Rear Seat
Storage below and a great place to mount 6x9 Speakers for Great Bass ... In a Jeep!

York AC Compressor Conversion.  What used to pump Freon, now pumps compressed air to the front and rear bumpers.  125 psi,  2 gallons of storage, air fittings at the bumpers, enough CFM to power air tools!.  Click Here for more  Details

 

Dick Cepek's 2008 F-250 Super Duty Project Vehicle ? Project CRUSHER


Warn X8000i
Winch Installation


ARB Air Locker Install
Jeep Wide Track Axles Swap

 
Mud Tire Reviews

Building a Garage?
Need a Garage Plan?
 


Reader's Rigs and Seriously Stucks!

 

Jeep Trans Swap Info
T-18A Transmission Rebuild & Short Shaft Conversion