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Downpipe removal....Snapped things.... - Printable Version

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+--- Thread: Downpipe removal....Snapped things.... (/showthread.php?tid=72010)

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Re: Downpipe removal....Snapped things.... - unfazed - 11-04-15

(10-04-15, 09:33 PM)anutz link Wrote: i was thinking the same....and i would make sure it was a full head i.e. Caps, Cams...the lot....then just the gasket would be new.....

The thing was i have been warned off doing just the head from a few friends, they have done a fair bit of work with car engines, not motorcycles...


I know it could be warped, could have valve issues, but if it did not, or they were inspected....what would be the main issues?


Anyone on here replaced just the head and been ok?


A full engine could have the same problems plus gearbox issues,

Re: Downpipe removal....Snapped things.... - Paulfzs - 12-04-15

update?

Re: Downpipe removal....Snapped things.... - anutz - 12-04-15

hi Paulfzs....


So - still on hold, the engine shop did not get to look at it on Friday - Monday/Tuesday they will look at it....so hopefully we shall have some success!!!!


As longs as that all goes well it should be sound, only change is location of the holes on piston 2's down pipe mount, then its just making sure i am careful on re-assembly...


Then i need to patch up the busted hole, but will get it working again first then i can take care of that


Its driving me crazy now  :'(


But there is not a part of the bike now i have not seen - and have been checking all the ancillary parts, carbs, fuel pump etc...


Planned to get an old fazer at some point to mess with and understand/take to bits.....but might not need too after this  :lol


Anutz

Re: Downpipe removal....Snapped things.... - Paulfzs - 12-04-15

you can pick up  2nd hand damaged engines for pennys, ive sold 2 for £50 each now.


whilst youre there check valves shims chain the usual jazz.


if you don't know ask on here and check manual, if you still arent sure dont touch it.


i would of thought any fabrication place could drill it out for you, 15 minute job really.

Re: Downpipe removal....Snapped things.... - anutz - 12-04-15

thanks


i might end up getting a new engine if all else fails...i have seen your thread about changing an engine - did you put an 02 in an 98 frame?


will be super careful with timing and clearances as well.....have a feeler gauge and all the correct moly grease/oil so know what to expect, and won't start it until i am 100% sure


have some shims as well i got off ebay so can make any needed adjustments...


they have taken there time - but its there now so i will just wait for there call - back at work next week so time is short...


One question i have, i took the air-bot out and that involved disconnecting the crank case breather, but also 2 other hoses that connect either side of the air box...


they are simple to re-attach but i just wandered what they were - they form into a T and can be seen clearly here


No mention of them in the service manual....or i do not see it...


pipes here form a T next to the bottom right of the starter...


[Image: airboxout_zpssfd7p9lr.jpg]

Re: Downpipe removal....Snapped things.... - unfazed - 12-04-15

Both attach to the airbox, bigger one of the two is the crankcase ventilation directing the blow by from the crankcase back into the airbox to be burned part of the emission reduction.
T-piece one is the air box drain with a filter in it. The reason for two pipes on the drain is to allow drainage while on the centre or side stand

Re: Downpipe removal....Snapped things.... - anutz - 12-04-15

hi unfazed, that bit i know  Smile , question is where do they go form there and what do they do...


I know what the Crank Case Breather does and it makes sense....just not sure what there 2 do and where they disappear to once the leave the air box and meet at the T..





Re: Downpipe removal....Snapped things.... - unfazed - 12-04-15

(12-04-15, 06:06 PM)anutz link Wrote: hi unfazed, that bit i know  Smile , question is where do they go form there and what do they do...


I know what the Crank Case Breather does and it makes sense....just not sure what there 2 do and where they disappear to once the leave the air box and meet at the T..

Hit the post button before I finished typing :'(

Re: Downpipe removal....Snapped things.... - Paulfzs - 12-04-15

i put an 03 engine in a 98 frame, so far ive got an 03 engine, 03 pillion hangers, fazer thou rear caliper im sure theres probably more that ive forgotten.


the engine change is difficult!


im sure once you get em drilled they will be fine.

Re: Downpipe removal....Snapped things.... - unfazed - 12-04-15

All you need now is the 03 Headlight and fairing and you would be sorted  :lol :lol

Re: Downpipe removal....Snapped things.... - anutz - 12-04-15

So those 2 hoses....that form a T, what do they do and where do they go?


I was thinking they must be some sort of ventilation for some other parts of the engine but not sure what, and i did't think they would be breathers....why would an airbox need to breath



Re: Downpipe removal....Snapped things.... - unfazed - 12-04-15

(12-04-15, 06:06 PM)anutz link Wrote: hi unfazed, that bit i know  Smile , question is where do they go form there and what do they do...


I know what the Crank Case Breather does and it makes sense....just not sure what there 2 do and where they disappear to once the leave the air box and meet at the T..
(12-04-15, 05:57 PM)unfazed link Wrote: Both attach to the airbox, bigger one of the two is the crankcase ventilation directing the blow by from the crankcase back into the airbox to be burned off as part of the emission reduction.
T-piece one is the air box drain with a filter in it. The reason for two pipes on the drain is to allow drainage while on the centre or side stand

I corrected my original post after clicking "send" before I finished typing

Re: Downpipe removal....Snapped things.... - Paulfzs - 12-04-15

(12-04-15, 06:51 PM)unfazed link Wrote: All you need now is the 03 Headlight and fairing and you would be sorted  :lol :lol


i would if they weren't so expensive!



Re: Downpipe removal....Snapped things.... - anutz - 15-04-15

Looking GOOD!


[Image: IMG_0033_zpsfqf3tkvq.jpg]

Re: Downpipe removal....Snapped things.... - Paulfzs - 15-04-15

happy days!!
now get it fitted its hot outside!

Re: Downpipe removal....Snapped things.... - unfazed - 15-04-15

Make sure all the swarf from the drilling is cleaned out of the head before you reassembly it, the picture shows a few bits in the cam seat.




Re: Downpipe removal....Snapped things.... - fazersharp - 15-04-15

Hu-focing-rray

Dont forget to give those pipes a coat of paint 1st  you want granvile cylinder black

Re: Downpipe removal....Snapped things.... - anutz - 15-04-15

Hu-focing-ray indeed fazer#


Will make sure the head is spotless - up top and on the mating surfaces


And will also make sure the block mating surface is cleaned up as well...


I think this is where the work really begins  Smile


Any tips on making the gasket surfaces clean on the head and block?



Re: Downpipe removal....Snapped things.... - anutz - 15-04-15

current state of head underside - planning to use combination of razor blades and wet n dry to sort out the old gasket material - same on the block


[Image: IMG_0034_zps5xirzomc.jpg]

Re: Downpipe removal....Snapped things.... - anutz - 15-04-15

Progress...


[Image: IMG_00361_zps9rdwrk40.jpg]