Alternator Bracket Modification for Rocker Covers

[Top Gear TVR]

Hi - I know a few have fitted alloy rocker covers to their 2.9 V6's. Have you got any good pics or drawings of the mods you made?

[TVR-Stu]

Here is an old thread of mine that may help, link.

I think others have managed to get away with just 'bending' the bracket a little which may mean keeping the original size fan belt? I'm unsure so will leave it to them to confirm.

HTH, Stu

[glenrobbo]

Hi Steve,
Richard ( greymrj ) has devised a really neat alternator bracket that allows rocker covers to be removed with the alt in situ
Only works with original cast iron exh. manifold though, as the alt is positioned lower down on the rh side of the engine.
I was very impressed when I saw his car today.

[Top Gear TVR]

Very clever idea....

[greymrj]

Thanks Glen, good to chat to you at SCH and thanks for the 'guided' tour back to Baslow, enjoyed the drive in company!

I know someone else was interested (sorry, I forgot to take notes) so herewith a couple of pics which may give you the idea. I started with a standard S1 alternator bracket. The new bracket swings the alternator down but stays close to the block and retains the same adjuster slide. The drive belt is reduced in length by 75mm and now uses the readily available Gates 6225MC belt. I decided to change the arrangement to bold to the cylinder head (just to make things harder for myself! but the original brace could just be welded back on.



If anybody wants to do this then I will dig ot my notes on the exact dimensions, particularly the hole centres. A similar arrangement can be done on the 2.9 but, again, only with standard manifolds. On some 2.9's there appears to be a small bore water pipe from the swirl pot which might just limit what you can do.

[greymrj]

Although this moves the alternator closer to the manifolds it does move it into a cooler air flow and, on a pretty hot day with traffic delays, a check showed the alternator was remarkably cool. Incidentally the shorter belt gives a better angle on the water pump, on the S1 at least the contact sector on the water pump pulley is rather limited.