gear selection fault

[lee49]

i have a 98 fd
was driving earlier and as i went to put it into 5th gear (normal driving speed) it really didnt want to go in.
  carried on and when i got to my destination i tried at standstill with the engine running and engine off and it still wasnt going into 5th.
as i was driving back home then i tried again and it went in with a VERY LIGHT crunch. worked all the way home then.(wth a very light crunch every time)
  i tried again then when i got home and it wouldnt go in again.
  every other gear is fine which seems a bit odd.
can ayone shed any light on this or had anything similar
 
as far as the car is concerned its a 98spec fd with a few engine mods, standard gearbox with a twin plate clutch,
 
cheers in advance for any suggestions/info:3Confused

[Jim_rx7]

synchro possibly gone.

I lost 5th gear in my old Mr2 turbo.. not the sychro tho.. the whole gear I think. You could hear bits and bobs rattling about inside the box!

[lee49]

lol naaa its not that bad jus hard getting 5th!
checked all the obvious points...oil,mounts etc all kushdee so looks like a syncro fault. GAY

[pdtaylor18]

Does it go in at all? ie if you coast briefly without any revs does it still go in then?

[lee49]

it goes in when it wants to, more often than not but theres always a crunch there. the only time it wont is at standstill with engine on or off??

[wilson_angela]

This happens to me sometimes, well it\'s happened 3 times and i\'ve only had the car about 3 weeks.  Can\'t put a pattern on it either so would appreciate some advice? I\'ve got a 2006 RX8 PZ, no mods.

[RobMatthews]

same has just happend on the track car drop the greabox oil if its got fine copper/brass bits in its the syncros.
I\'ve not got round to stripping it down yet so cant confirm,i think i may get christmas day off so will look at it then lol

[neil_jdmr]

it will be the 5th gear syncro mate, If it will go into gear but crunches upon selection then 99% syncro has gone