Tuesday, November 15, 2011

Night 3 in the freezer

The inside pipes got a small crease in them against the block, likely when the elbow hit what ever obstruction that caused it to dent in the first place. Here is a before pic.

RHD Throttle cable install pics

Here are the install pics for the RHD throttle cable. I had to route behind the oil filler neck and under the stock air cleaner.

Second Day on Ice




After a drain and a second day filled with water and an another 12 hours in the deep freeze, the elbow on the 2 lower header pipes is almost completely smooth.

Monday, November 14, 2011

Fixing a dented header pipe

A couple weeks ago I bought a Fiesta 4->1 GT class race header.  It has some surface rust and a couple big flat spots at the bend on the 2 lower pipes.  The flat spots would constrict the exhaust on the 2 cylinders by at least 1/2, so it need to be fixed.  I asked some of my hotrod friends at work for advice, and got a number of recommendations, including heating and and pounding them out with a large diameter round rod ground down to a dome, to getting some new, bent pipes, and replacing sections via cut and weld.  The most interesting suggestion was to fill it with water and pop it in the deep freeze...  Anyone who has forgotten a can of beverage in the freezer knows the principal behind what happens next.  In fact I have dark slush at the bottom of my deep freeze from just such an incident.  Sure, lets give it a try, nothing to loose.

...12 hours later, magically they popped right out.  There are still some creases  in the metal, so I am thawing and trying another go tonight to try and smooth those out as well.

UK Throttle Cable installed

I received my batch of parts from Burton Power about a week after order.  I ordered 2 throttle cables, nice to have a spare...  Good thing I did, since I broke the plastic adjuster when installing the first one.  The Cables are about 3" shorter than the US cable, and will not install over the air cleaner.  So I had to route it under the air cleaner.  The second install went really quickly.  And at 12GBP for the cable, I don't feel too bad about messing up the first one.  The accelerator always felt un-responsive and a little dead with the old cable installed.  I'm sure that 31 years of crud, and a Jerry-rigged hose & Hose clamp set up at the fire wall, weren't helping either.  With the new cable installed, I get much better "feel",  direct response and feedback.  My only concern is the angle that the cable comes into the adjuster is a bit off straight in, so I worry about the force on the adjuster.  At the moment, it works great.