Regarding the Triumph V8 Engine Trainiig Notes

[sujitroy]

is there a reason why in the notes, they put the chains on before the cylinder heads? Before I got this document and on my current Stag I put the LH head on then did the chains.

Sujit

[Westfaling]

Given that you can change the chains with the heads in place I guess that it was just considered less fiddly. It's a shame that they didn't come up with a solution that didn't wreck the sump gasket when removing the front cover.

[mole42]

Having replaced the chains both ways, I'd always put them on before the heads if I do it again. It is MUCH easier to do that way, and, as said above, putting the front cover on after the heads are fitted can compromise the sump gasket.
Richard

[Tdm]

Reading the above posts reminds me that I too had a problem with the sump gasket when I changed my Timing Chains, and it is the area where the sump gasket meets the Timing Chains front cover that appears to be the source of my current oil leak (as referenced in my Thread "Stag Carburretor Choices - Part 2"). I honestly can't really remember which way I did mine, but have a feeling it was fitting the chains first before attaching the Heads.

[flying farmer]

I never did fix the leak on the first Stag engine I had in my TR after a timing chain change, but the PCV valve I fitted reduced it to the odd spot rather than a regular puddle. I eventually fixed it after removing the engine when I was transferring it to my Triumph Estate.

Neil

[mole42]

I fixed the leak on mine by replacing the sump gasket. Not a pleasant job.

[sujitroy]

Someone suggested to cut the sump gasket at either side where the front timing cover goes on. This way, on redoing the chains there is no need to loosen the sump. However, you want to make sure the gasket thickness is the same. Sujit