Wilsons Sandbox

Rick, I am using welded cam lobes in my TC race car. Works fine if the work is done properly. However for a street car I would recommend a new Crane cam, standard road spec cam number is Crane Part Number 340-0002, grind number 553-OS. This cam has oversized lobes to reduce wear and may require shorter Crane pushrods, part number 905-0003, to get the require valve adjustment. Depends on how much material has been removed from the cylinder head face to raise compression. Bob Grunau 150 Pinewood Trail, Mississauga, Ontario, Canada, L5G-2L1 905-274-4136 -----Original Message----- From: Rick Waters [mailto:rwmgtc@yahoo.ca] Sent: Sunday, March 06, 2005 3:37 PM To: mg-tabc@yahoogroups.com Subject: [mg-tabc] XPAG Cam advice please While adjusting the valves on my TC, I noticed that the number one pushrod wasn't moving as much as the others. In fact, it shows about 65 thou lift on a dial indicator, while the others (at least number 2 and 3) show something over 160 thous. Obviously, I need to do some work (and spend some money) here. Before I get to it, what experience do others have with built up and reground lobes? If I opt for a new cam, any suggestions on reliable suppliers (manufacturers)? All advice welcome. Thanks Rick -Rick Waters --------------------------------- Post your free ad now! Yahoo! Canada Personals [Non-text portions of this message have been removed] Yahoo! Groups Links

Cams can be reground, and rewelded. Best to verify what weight springs are installed. The TC - early TD springs are better suited than the late TD - TF springs, regardless of which head is installed. You only need about 90 lbs. to close and seal valves to seats. TC- early TD had 125 lbs., late TD- TF had 150 lbs. Factory goofed (imagine that) in mis-diagnosing shiny areas between spring coils as valve crash, so the increased spring pressure to solve problem. In fact, it was the springs going into oscillation, as to why they were shiny. Heavier spring rate transfer load to other parts of the valve train. Insufficient lubrication, and excessive spring pressure, can hasten cam lobe wear, especially on a rewelded cam. I would recommend the Crane camshaft, if you have more than 1 or 2 lobes to reweld. A much better design, better performance, than stock. Yes, your camshaft can be rewelded, and reprofiled for a slightly more aggressive performance grind. John Seim Irvine, CA Rick Waters wrote:

>While adjusting the valves on my TC, I noticed that the number one pushrod wasn't moving as much as the others. In fact, it shows about 65 thou lift on a dial indicator, while the others (at least number 2 and 3) show something over 160 thous. > >Obviously, I need to do some work (and spend some money) here. Before I get to it, what experience do others have with built up and reground lobes? If I opt for a new cam, any suggestions on reliable suppliers (manufacturers)? > >All advice welcome. Thanks > >Rick > > >-Rick Waters > > >--------------------------------- >Post your free ad now! Yahoo! Canada Personals > > >[Non-text portions of this message have been removed] > > > > >Yahoo! Groups Links > > > > > > > > > >