conrods possition

[bernardofeio]

hello

I’ve just notice a note in the BMW manual:
“…install both conrods so that the locating pins of the conrod bearings are positioned at the alternator end.” (to the front)

I’m not sure if I did this…
what is the purpose of this note? The conrods are symmetrical right? lubrification?

 

[Packer]

It leaves you with a wonderful choice

1) Leave it as is, use it and see if it goes bang or
2) Pull it back down and check if you got it right.

If you do 1) you will certainly have got it wrong and if that means no oil circulation it will go bang. If you do 2) inevitably it will have been done correctly the first time and the strip wasn't necessary

 

[brassmonkey001]

It leaves you with a wonderful choice

1) Leave it as is, use it and see if it goes bang or
2) Pull it back down and check if you got it right.

If you do 1) you will certainly have got it wrong and if that means no oil circulation it will go bang. If you do 2) inevitably it will have been done correctly the first time and the strip wasn't necessary

Ah, the age-old dilemma.

 

[richie moore]

there is a good reason that the rods are fitted with the pins to the front I wont explain why, but just do it.

 

[bernardofeio]

Richard... please explain... lubrification right?



I did assemble it in the correct position! I've just confirm that now looking in the marks on the conrod...
I assemble the right barel completly and now I will assemble the left

ps:we still have to explain me why you don't replay to my emails!

 

[richie moore]

it has nothing to do with lubrication its technical and complex to explain and you dont need to know.

 

[Deleted account 111026]

Have you found a solution to the pre-ignition problems with your Omega piston kits yet?

 

[richie moore]

bernardo didnt buy any omega pistons.

 

[Deleted account 111026]

I know that, it was a question about the kits in general. I've read about the pre-ignition problems but nobody has written about a solution to it. Interested to know what you recommend when the problem is encountered.

 

[richie moore]

the problem is solved by reducing the ignition advance, as the shape of the crown and the fuel used control the rate of the burn, it will normally pick up some power too. as I said in the other post the best power came between 30 and 35 degrees total advance. depending upon the type of fuel used. I also found that having the ability to retard the ignition above 7500rpm was good for power.

 

[Deleted account 111026]

Thanks for the reply.