Jump to content

fresh build bottom end gone??


Recommended Posts

  • Replies 82
  • Created
  • Last Reply

Top Posters In This Topic

Whip crank out, take it a machine shop and get it measured, polished or reground and polished if it's out of tolerance. Genuine Toyota bearings and some engine assembly lube.

Exactly what I did with the advance engine (after it melted the Pistons courtesy of TD)

Done 40000 mile in it since the overhaul and it's sweet as a nut. Ended up with 0.25 oversize big ends. Mains and thrusts were fine.

Link to post
Share on other sites

right so ive had the crank out and had it looked over by a local engineer and he does not think there is any damage to the crank.



we measured the journals with a micrometer and the results were:



big 1 - 39.95


big 2 - 39.97


big 3 - 39.97


big 4 - 39.94



mains - all 46.99



main 1


20151107_102145.jpg



main 2


20151107_102157.jpg



main 3


20151107_102206.jpg



main 4


20151107_102223.jpg



main 5


20151107_102257.jpg



this is the condition of the no.1 big journal in question from the above videos:


20151107_102241.jpg



under engine shots:


20151107_102329.jpg


20151107_102314.jpg


20151107_102319.jpg



sorry about the picture heaviness :)



so what do we think now? crank polish and a new set of genuine bearings and thrust washers all round?

Link to post
Share on other sites

about the bearings use thes for standard size


same but cheaper then mr toyo



http://www.ebay.co.uk/itm/JDM-TAIHO-MAIN-CON-ROD-ENGINE-BEARING-SET-STARLET-GT-TURBO-EP82-EP91-4E-FTE-STD-/301458536571?hash=item463054387b:g:JGwAAOSwnDxUkG9B



if it needs a grind it will be main dealer and 20e per chel 2 on a conrod so 40euros plus vat ontop so you get an idea of pricing 200/220euros

Link to post
Share on other sites

Ok I see where this is going now Colin is absolutely right what his saying (remember the shit I went through mate with this) when you ring up toyota they will ask you was size bearings you need, I actually have a micrometer in 000.0 cost me 50 quid aswell as the engineer I took my crank too decided to measure it in 000 not 000.0 dumbass and turned around and said we don't do 000.0 here and measured the crank to 40mm on each journal instead of the actual size it should of been in thousands of an inch, where are you located mate and don't worry it's a lot to take in at the moment but step by step we can help (especially Colin, that bloke eats, sleeps and shits these engines I swear it haha)

Link to post
Share on other sites

A lot of info I read mate when building mine, what a nightmare though, only thing I can think of here when reading about his bottom end build wrong size bearings I never did like the acl route but that's just my opinion

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...