crossflow crank gear

[shaun]

Hi building a twincam on a 711 block can i use crossflow crank gear cheers

[types26/36]

Hi building a twincam on a 711 block can i use crossflow crank gear cheers

Only if you make up a spacer to fit behind the Xflow sprocket to bring it forward.

[garyeanderson]

Hi building a twincam on a 711 block can i use crossflow crank gear cheers

Only if you make up a spacer to fit behind the Xflow sprocket to bring it forward.

What about the crankshaft pulley? Are you going to shorten that to match the mis-matched sprocket?

Gary

[types26/36]

[What about the crankshaft pulley? Are you going to shorten that to match the mis-matched sprocket? Gary

Gary, the Xflow pully will fit as it has the same length (although slightly larger diameter) the crank sprockets are also the same length but with the teeth brought forward on the T.C.
When useing the Xflow sprocket the front has to be cut off and a spacer of equal amount fitted to the rear.

[andyelan]

Hi Shaun

Without wanting to sound like a smart ass, why don't you just to use a standard Twin Cam sprocket. The idea of machining and fitting spacers on such an important component would worry me and I wouldn't do it unless there were no other choice. If you get the sprockets mis-aligned or running out of true and it throws the timing chain then your in big trouble.

Regards
Andy

[garyeanderson]

Hi Brian

You gave the short answer and didn't complete the story. I read it a 2.46 am and it just didn't read right to me so I asked the question. It may work but as Andy says why would you do this. I believe that these small parts can be mailed, even to the far corners of the world. I guess then you could then get a larger diameter waterpump and generator pulley to slow things back to design speed. I don't know if this is a cost savings measure or what?

Gary

[garyeanderson]

OK, I guess I am going to dig the hole a bit deeper.

I looked at the post because I saw the username Shaun4357, I answered a post about the capillary tube earlier on Friday and didn't hear back,
elan-f15/capillary-temp-gauge-t19083.html
I figured vacation or some such but I wasn't sure if shaun4357 had read it. Then I saw that Brian had answered another question from Shaun4357 back in April (long vacation?) and the same non-response (a question with 1 reply) so I read it. Do some folks expect an answer with out acknowledging that someone took the time to read there post and give an answer? If so, I can assure you that I won't find the time again.
I am not pointing only to shaun4357, there are others that have this habit. My question to Brian was more of a lead in. I was going to post a new topic, but some people would think that I am just being an a$$hole (they may still) but not coming back to say thanks is unbecoming forum behavior in my mind.

Gary

p.s. sorry shaun4357 for using your topic as an example, it just happened to fit one of the problems with this forum in my eyes.

[types26/36]

Hi Brian You gave the short answer and didn't complete the story. Gary

Hi Gary, the reason I gave a short answer was that (rightly or wrongly) I assumed that anyone doing an Xflow to T.C. conversion would have enough engineering skills to see that the sprocket would have to be adapted to suit.....if such an obvious thing was not seen than I think that the person doing the conversion should recognize the fact that they are not cut out for such endeavors....you can only help people so much and holding their hand ALL THE WAY is not what this forum is about (just my opinion only)

Hi Andy,
As regards using the Xflow sprocket as opposed to the T.C, sprocket, I bought one from QED several years ago and it consisted of a sprocket and spacer, whether T.C. sprockets were not available .....I have no idea but I still have the QED one laid about somewhere so providing it is done correctly I don't see it makes any difference either way.

[garyeanderson]

The forum is famous for one liners. I guess lotus must have thought it was worth the time (and money to have a batch made). The short answer should be NO, but can be made to work by adding a spacer and bla bla bla. Other folks actually read the old posts (the silent folk, aka visitors). Not every one wants to come on the forum and ask questions and either get "no response" or have the topic changed on the second post without there question being answered, lots of people just come here to just read. Others open a new topic for every question when they are doing a job on the Lotus, others like Alex start a topic and continue until the project is done. I don't think there is anything wrong or right about either approach. If you want people to follow along on your projects progress than a running dialog is the way to go, Its quite easy to find something in a single topic than to spread 50 topics out of a year in 3 different categories. I was not trying to start a war or add to my post count, Christ I delete more posts than most ever contribute. Sorry I hit a nerve but sometimes I just feel the need to say what I think has to be said, it runs in the family

Gary

ps sorry I didn't post 5 or 6 picture

[paddy]

There's a twink crank sprocket on Uk Ebay right now if it helps:

http://cgi.ebay.co.uk/lotus-twincam-cra ... 286.c0.m14

Paddy