4.4 rv8 build thread (Doc evil need not post)

[discomark10]

run the vernier over the crank journals mate and get us some " readings

 

[fett]

will do mark

 

[fett]

ok so in order of appearance

64.45
64.46
64.44
64.45
64.46

whats does that tell us?

 

[discomark10]

that its probly not the crank

 

[fett]

ok well thats something lol

can we also assume that if the previous owner had fitted the .10 bearings to a std crank there would be no white metal at all left on the old bearings and that mine would have been scrubbed evenly or the crank would not have even turned by hand?

 

[discomark10]

it wouldnt have worked with +10 shells, be way to tight, think you might have to look at what someone else said.. twisted block, but not 100% on that

 

[discomark10]

might sound silly, but is the block and caps clean of all dirt and crud?
the pressure marks on the shells are very odd, one has a small raised part and the other are in the middle which suggests they are not pressing down right

 

[fett]

you know what, there was one lump I cleaned off which I wondered may explain the worst bottom shell or some of it, however the rest of them no and also I would be surprised if the last builder had had crap in the same place and his shells were worn in a similar fashion to my shiny marks but obviously right down to the copper from 30k miles of running

 

[discomark10]

Ok well thats the one bit. The otheres are odd. I think it might be worth getting them bored out if your block is stright.
Have you got a nice metal ruler you can rest over a few of the shell seats to see they are right... if you get what I mean.

 

[jamesmartin]

you know what, there was one lump I cleaned off which I wondered may explain the worst bottom shell or some of it, however the rest of them no and also I would be surprised if the last builder had had crap in the same place and his shells were worn in a similar fashion to my shiny marks but obviously right down to the copper from 30k miles of running

on the old shells the wear marks would be all evenly on the bottom if block was straight

 

[fett]

mark i was thinking along those lines with a ruler.

james,are you saying it needs align boring? I have spoken to real steel and they can do it

 

[jamesmartin]

mark i was thinking along those lines with a ruler.

james,are you saying it needs align boring? I have spoken to real steel and they can do it

not necessarily but positon of wear on old shells and new marks om new can help indicate

 

[fett]

so whats the next move then master tech?

 

[jamesmartin]

so whats the next move then master tech?

normally i have the evidence to examine ,even things like tightening order ,have you tried other shells

 

[fett]

not yet, I was thinking of giving the block a good scrape then fitting them and hoping but if Im wrong I loose my last chance at seeing the marks again. also if original last owner shells were down to copper in some places(maybe same places as marks) whats the chance it would be different now?

Plus hat bearing guard is expensive

 

[jamesmartin]

not yet, I was thinking of giving the block a good scrape then fitting them and hoping but if Im wrong I loose my last chance at seeing the marks again. also if original last owner shells were down to copper in some places(maybe same places as marks) whats the chance it would be different now?

Plus hat bearing guard is expensive

bearing guard ?if a crank is running true it will show the same wear in every cap ie if some shells have wear to one side others another then somethings bent

 

[fett]

the moly bearing build lube.

ok so looking at the pics does it seem the crank is bent?

 

[jamesmartin]

the moly bearing build lube.

ok so looking at the pics does it seem the crank is bent?

its not needed if stuff is ok ,oil changes over the years are ,which pics old shells

 

[fett]

you mean old old shells it ran on? not sure lol prob at start of thread, I may still have them but out of running order now

 

[fett]

heres the worst one

Land Rover Zone - fett's Album: pistons and crank out - Picture