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View Full Version : bottom end knocking.....help please!



vxsri20
17-12-07, 08:18 PM
hi, ive got a 1.4 sr nova with a few mods, my bottom end started knocking the other night, so i stopped and got towed home. hopefully i havent done any damage to the crank! im not very knowlegable with cars, what do i need to buy? i.e bearings,shells?????? also what sort of price am i looking at for the bits? thanks in advance to any replys. stu:thumb:

greg1.4
17-12-07, 08:34 PM
i had the same problem (still do)!lol

it got worse as i revved it too.. so i replaced the shells and it did not help.

i would try that as its not expensive anyway..

vxsri20
17-12-07, 08:49 PM
replace shells and bearings?

Adam
17-12-07, 08:50 PM
Did the oil light come on?

Lee
17-12-07, 08:50 PM
If the big ends have started to knock i would imagine the crank is fubard im afraid.

If its the crank itself, you might be lucky, but you really need to get it checked.

Trust me on this, im experienced in such matters lol

vxsri20
17-12-07, 08:56 PM
the oil light didnt come on! as soon as i heard a little rattle/knock i pulled over and towed it home. ive started it to show my mate, left it running for about 20 seconds!

Adam
17-12-07, 08:57 PM
Probably scored the crank journals then.

Re-grind/polish
Or new crank job

Take it out and have a ganders

vxsri20
17-12-07, 08:59 PM
cheers for the help people!!! much appreciated :thumb: will get it to pieces at the weekend and see what damage there is!:( cheers stu

therealnovaboy
17-12-07, 09:50 PM
should be alright, you could probably get away with a set of shells youll need gaskets and bolts and what have you but ull get it all for about 60 quid. finfd out why it happend tho or itll just do it again. if ther was low oil in it, top it up.

its quite expensive to re-grind a crank. id advise you wing in a set of shells and see what hapens

Lee
17-12-07, 09:52 PM
its quite expensive to re-grind a crank. id advise you wing in a set of shells and see what hapens

Ill give you 1 guess who did that and then ended up getting a reputation for destroying engines.

Ash
17-12-07, 10:59 PM
give you an idea of price for a crank grind, I paid ?168 for a crank grind, flywheel lighten and heavy duty mains and big end bearings. You'll need new big end and mains bolts too.

Rich
18-12-07, 06:49 PM
A engine swap is probably a cheaper quicker and easier option

vxsri20
19-12-07, 01:18 PM
ive just bought another 1.4sr full engine for 90 quid off a friend of a friend, bottom end done 83k, im going to put that bottom end on my head because my head been gasflowed and ported and polished and cammed! cheers for all the replies people :thumb:

Stuart
19-12-07, 02:07 PM
wow gasflowed, ported AND polished....... or alternatively its SIMPLY been ported and the rest are simply buzz words lol

vxsri20
19-12-07, 06:49 PM
alrite mate ****ing hell, im just going by the reciepts ive got. as i said NOT very knowlegable with cars!!!!!!!

Stuart
19-12-07, 07:11 PM
chiiiiiilllll :) now you know ;)

ANDYRACER
19-12-07, 08:16 PM
ive just bought another 1.4sr full engine for 90 quid off a friend of a friend, bottom end done 83k, im going to put that bottom end on my head because my head been gasflowed and ported and polished and cammed! cheers for all the replies people :thumb:

Best way to go imo. :thumb: