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Model specific boards => Golf mk2 => Topic started by: kkerry2005 on 13 April 2011, 11:45

Title: need help can u change the crankshaft r they interchangeable 18.16v
Post by: kkerry2005 on 13 April 2011, 11:45
is it possible to change the crankshafts because my bottom end shells r making noises and some1 has told me u can change the crank aswell as the shells and some1 else says u carnt lol neeeeeeeed help lol G reg 18. 16v
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: Wayne on 13 April 2011, 11:57
The engine will need to come out to replace the crank.

You would be better to remove it, strip it down and see what is wrong.
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: rubjonny on 13 April 2011, 13:14
as above find the casue first then work from there. but yeah, 16v crank is same as 1.8 8v one from carb and gti
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: kkerry2005 on 13 April 2011, 16:49
thanks ppl going to get it stripped
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: Sam on 13 April 2011, 18:46
Good work lad, start a thread on it  :smiley:
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: danny_p on 13 April 2011, 23:59
why change cranck   if you catch it in time just polish up the journals and fit new shells,  if it's worn to much or the suface is to badly damaged for that just have it ground to 1st undersize and get 1st undersize shells
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: tech1889 on 14 April 2011, 00:09
Danny what does 1st undersize mean ??
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: Wayne on 14 April 2011, 09:03
Danny what does 1st undersize mean ??

Edit see below   :smiley:
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: danny_p on 14 April 2011, 10:34
Danny what does 1st undersize mean ??

there are usally 3 options for bearing size when buying them     othen marked "std " to indicate they are standard size  then there is    " -.010 "  or   "-0.10  " for 1st undersize  and "-0.020" or  "-0.20" for 2nd undersize.   

wayne - as metal will have been removed from the cranck if it has had to be reground hence reducing the diamiter of the bearing journal slightly  hence new bearings can be bought in smaller sizes.  not larger ones   it's pistons that come oversize as metal is removed from the inside of the bore and increases it's diamiter  tho often not the case on more modern engines as you'll overbore by anything fro 60 - 300 thou and pres liners in and use std size pistons

often you can just polish the jounals up with a bit or rope over some 2000 grit wet and dry and spinning it around for a bit and chuck std shells back in
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: kkerry2005 on 14 April 2011, 12:35
i think it will b easyer because some sh!theads didnt do the job right the 1st time it got done it has already a reegrind they didnt take the engine out did it on ramps and it wasnt done properly still made a little noise wen got it back so its going to b a totaly strip job and hopefully it will b ready 4 the summer lol just going to take my time :-)
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: danny_p on 14 April 2011, 15:34
they won't have reground the cranck if they did it on a ramp.   cranck needs to come out the engine for a regrind   if it's ate another set of sheels quickly it prably beacuse they didn't clean the journals up before fitting the shells or they did clean them up but didn't bother to check them for size and fitted new shells to overly work journals   so it probaly needed to come out for a regrind  or you can replace the cranck  tho you may need to have the replacement cranck ground. 

if you get stuck for a cranck  drop me a PM have a load of them somewhere
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: kkerry2005 on 15 April 2011, 20:27
cheers 4 your help ppl  the work begins monday stripped cleaned and new crank ;-) if i get stuck will drop u a txt hahhahaahhaah lol thanks again ppl
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: kkerry2005 on 27 April 2011, 21:51
found problem  :smiley: some1 put the shells in wrong  :sick: hopefully done by next week
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: Wayne on 27 April 2011, 23:18
found problem  :smiley: some1 put the shells in wrong  :sick: hopefully done by next week

How the hell do you fit shells wrong  :smiley:
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: mk2bal on 28 April 2011, 00:29
And you worked at tsr?? Shells have to go in a certain way round for oil to get in, and the notch has to be in the right place to stop them turning. Unless you're being sarcastic of course....
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: danny_p on 29 April 2011, 09:14
or you can put them in upside down as in plain shell in the block and the with with the oil hole in the bearing cap.

seen that done before


Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: Wayne on 29 April 2011, 09:47
And you worked at tsr?? Shells have to go in a certain way round for oil to get in, and the notch has to be in the right place to stop them turning. Unless you're being sarcastic of course....

I was, I know it can be done and have seen it done, just wondered how a garage could get it wrong.
Title: Re: need help can u change the crankshaft r they interchangeable 18.16v
Post by: mwep201081 on 29 April 2011, 11:25
And you worked at tsr?? Shells have to go in a certain way round for oil to get in, and the notch has to be in the right place to stop them turning. Unless you're being sarcastic of course....

I was, I know it can be done and have seen it done, just wondered how a garage could get it wrong.

Just cause something's idiot-proof doesn't mean it's cnut-proof