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Paul’s Deflecting the Heat

• CATEGORIES: Builds, Features • TAGS: .

Paul shared this update on some custom heat shields for Knardly Rolls.

Paul writes, “The exhaust manifold is closer to the steering linkage than I’d originally intended but there isn’t any easy way to increase the distance between these two systems so I decided the best solution to this problem was to make some stainless steel heat shields that would bolt to the fender and fit between the exhaust manifold and the steering linkage.  

First I quickly made a test shield from some leftover poster board so I could check how this paper part would fit before I cut any stainless sheet.  Once I had the shape of the heat shield figured out I made a test piece from thin gauge aluminum.”

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“First I made a test heat shield from poster board to check for the correct shape.  Once I was satisfied with the shape of the heat shield I made one from thin aluminum to double check any clearance issues.  After the aluminum shield was modified I made a third shield from thin stainless sheet but I saw a need to fit the fourth and final heat shield a little closer to the manifold and also use a thicker gauge of stainless to prevent unwanted flexing during use.  Once the fourth shield was fitted I drilled the attach holes and bolted the shield to the front fender.”

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“Here’s the final heat shield temporarily attached to the front fender using Clecos so I could drill the fender and the heat shield at the same time.”
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“As you can see, the double U joint between the lower end of the steering column and the first steering shaft is still exposed to heat from the exhaust manifold so another heat shield was necessary.  This smaller heat shield will be attached to the steering column by adel clamps so it’s easily removed for maintenance.  The two adel clamps are bolted to the column with enough threads exposed on the fasteners to attach the aft end of the second heat shield while the forward end of the second shield attaches to the aft end of the first heat shield where the two empty holes can be seen.  If you read that last sentence fast it sounds like a square dance call.”

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“Here’s the paper pattern and the finished stainless steel second heat shield ready for installation.”

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“With the second heat shield installed I think most of the exhaust manifold heat will be deflected away from the steering linkage thus preventing damage to the U joints and shafts.”

2017-12-31-heat-shields7“An underside view shows the clearance between the steering linkage and the heat shields”
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