LT5 Assembly Project

[LGAFF]

Spoke to my contact at Mercury...he said that he did not think that the valves or rings would be impacted by using the stand....and he was right.
I tried doing it by supporting the engine and it made 0 difference.

He stated that the engines he referred to as green were low hours/miles....and that he does not recall doing unfired engine.

He did mention that he has seen issues with people not checking to see if the valves were being hung open after valve jobs.

He also mentioned that it was a known problem that the liners did disort at the bottom and it sometimes resulted in piston slap but performance was not affected.

Changing the guides can make it difficult seal the valves also......this is addressed apparently by lapping the valves with varying degrees of compound working through to lighter grits.

In the end, he agreed...if the valves hold fluid....if the bores are round...and pistons are ok...put it together and see what happens.