Le Mans Trip 2003
Discussion
and another one - just to prove that we really were racing paganis...
www.collier-stevens.co.uk/ultpag2.htm
this picture taken at something in excess of 240km/h between Calais & Boulogne
LMM
www.collier-stevens.co.uk/ultpag2.htm
this picture taken at something in excess of 240km/h between Calais & Boulogne
LMM
doc_fudge said:
Stig,
Just had a look at your site, seems you all had a blast!
One quick question (off topic), the front splitter on your car, is it factory sourced? It looks huge (and awesome!)
Andy
Andy,
Yup, it's from the factory. About 70 quid if I remember rightly. It's alot more than a piece of marine ply though with various brackets and stuff under the front canopy to hold it in place.
k wright said:
Chris,
Thanks for the addition to your site. Was there ever any doubt that you'd win? Honestly?
Was Nick using a bronze gear on his distrubutor? He needs one if he has a steel roller cam.
Ken, I didn't even expect to be chosen to take part (I didn't know about the competition at the time) let alone win. It was a nice surprise that's for sure!
k wright said:
Chris,
Thanks for the addition to your site. Was there ever any doubt that you'd win? Honestly?
Was Nick using a bronze gear on his distrubutor? He needs one if he has a steel roller cam.
Hey! that sounds interesting. No is the answer, l did not have a bronze gear. The gear looks like steel although the distributor we tried to replace it with did indeed have a bronze gear. l used to have a normal cam but now have a roller cam due to the early demise of the former. Tell me why l need the bronze gear?
The gear on my distributor has lost half of its teeth. Some look like they have been worn off and one shows the crystaline structure so l assume it snapped off. All was well until l backed off from 5000 rpm and all hell was let loose behind me, the engine cutting out. l hope the accusump will have saved the bearings. One suggestion was that there was some end float on the cam so it did not mesh properly with the distributor gear. l assumed the bronze gear was intended to wear rather than the cam gear as it is easier to replace.
l am interested in your views.
Nick
>> Edited by ultiman on Tuesday 24th June 22:14
>> Edited by ultiman on Tuesday 24th June 22:18
It used to be the case that whenever you used a roller cam you needed a bronze gear to prevent damage to the gear on the camshaft. Many of the cam manufacturers now make the cams so that they do not require this gear. It's best to check with the cam manufacturer for the specific cam that you have.
Mark
Mark
I had no idea that a steel cam could be used without a bronze gear but it has been awhile since I built a motor. As stated below ask the cam maker. From what I can remember a steel (as opposed to cast iron) cam is likely to nick a steel distrubutor gear and thereafter it breaks. A "soft" bronze gear can stand nicks without problems. A standard flat tappet cam is usually cast iron and is "softer" than the steel distributor gear. I've seen other applications of similar metals in gear driven parts that use the same metal but are not worm gears (dry sump pump, quick change differentials).
I'm not an automotive engineer, this is what multiple engine builders have told me when I'm charged extra for a distributor gear that lasts less time than the standard gear. If anyone has any other info by all means let us know.
Hopefully as you said your accusump will have discharged its store and kept the bearings lubricated after the oil pump stopped turning. Unfortunately there will be metal in the pan (hopefully large peices that are stuck to your magnetic drain plug).
I'm not an automotive engineer, this is what multiple engine builders have told me when I'm charged extra for a distributor gear that lasts less time than the standard gear. If anyone has any other info by all means let us know.
Hopefully as you said your accusump will have discharged its store and kept the bearings lubricated after the oil pump stopped turning. Unfortunately there will be metal in the pan (hopefully large peices that are stuck to your magnetic drain plug).
The engine will be coming out of the car as l really need to ensure the sump is emptied of various engine parts. Having lost a number of gear teeth, a cam lobe and corresponding wearing surface of the follower along with its surclip, l must be carrying excess weight downthere.
When the new distributor from the spares car was put in by my very helpful and able friends in the convoy, there was no oil pressure from the pump. Either the pump is broken or the drive did not engage which is unlikley as the distribitor shaft length was the same. l now have a tool for driving the pump using an electric drill (£14 from Roadcraft UK)so will be able to find out.
When the new distributor from the spares car was put in by my very helpful and able friends in the convoy, there was no oil pressure from the pump. Either the pump is broken or the drive did not engage which is unlikley as the distribitor shaft length was the same. l now have a tool for driving the pump using an electric drill (£14 from Roadcraft UK)so will be able to find out.
ultiman said:
The engine will be coming out of the car as l really need to ensure the sump is emptied of various engine parts. Having lost a number of gear teeth, a cam lobe and corresponding wearing surface of the follower along with its surclip, l must be carrying excess weight downthere.
When the new distributor from the spares car was put in by my very helpful and able friends in the convoy, there was no oil pressure from the pump. Either the pump is broken or the drive did not engage which is unlikley as the distribitor shaft length was the same. l now have a tool for driving the pump using an electric drill (£14 from Roadcraft UK)so will be able to find out.
Nick - Martin mentioned this to me, when we ran the car up after fitting the dizzy, he didn't completely tighten the retaining clamp, so it's possible that the dizzy popped 'up' off the drive pin for the oil pump, so it would not have been driven - so little oil pressure?
Check with the drive tool, but you may be OK - which will be a bonus!
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