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Conference terri::cars_uk

Title:Cars in the UK
Notice:Please read new conference charter 1.70
Moderator:COMICS::SHELLEYELD
Created:Sun Mar 06 1994
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2584
Total number of notes:63384

2286.0. "Engine clicks on radio." by SUBURB::FIXEDASSETS (Derek Roodenberg, Dutch at heart) Fri Jul 29 1994 12:19

    I was helping my neighbour last night with his car radio. 
    
    When he plays tapes there is a clicking noise coming through the
    speakers when the engine is running. When he switches to radio the
    noise is not there. I would expect this to be the other way around. Is
    there anything he can do to suppress this noise. I expect the problem 
    to be in his fairly new unit.
    
    Any electrical experts out there?
    
    Derek
T.RTitleUserPersonal
Name		DateLines
2286.1Grasshoppers in tape driveFORTY2::HOWELLJust get to the point...Fri Jul 29 1994 12:3410
    Hmm, could well be a problem with the unit, but I'm thinking it might
    be some strange interference due to the extra load of the tape motors
    /etc ?! I suppose it would be worth trying wiring the head unit up
    directly to the battery and see if it still makes a bad noise.
    
    He's not listening to some very strange music, is he, like "The
    Crickets" or anything ?!
    
    ;-)
    Dan
2286.2cogsREPAIR::CARTERFri Jul 29 1994 14:5610
    
    My car radio had a problem with a clicking noise when playing tapes, 
    but not when using the radio. I located it to one of the drive cogs
    pulley having cracked. I replaced the pulley and it worked fine.
    Apparently this is a common fault with car sterios when there is a
    frost.
    This may be the fault.
    
    .Simon
2286.3Click, clickSUBURB::FIXEDASSETSDerek Roodenberg, Dutch at heartFri Jul 29 1994 15:4910
    Re.1
    
    He plays lots a weird acid music but the noise continues when the tape
    stops.
    I'll suggest trying it from a different battery.
    
    Re.2
    
    The clicking noise definitely comes through the speakers, was that the
    some with yours?
2286.4More clicksSUBURB::FIXEDASSETSDerek Roodenberg, Dutch at heartFri Jul 29 1994 15:505
    Read same for some in previous reply.
    
    Thanks for both answers.
    
    Derek
2286.5Sounds like the unit...FORTY2::HOWELLJust get to the point...Fri Jul 29 1994 16:098
    I take it the speed of the clicks is independant on any engine speed or
    other motors in the car (he doesn't leave his wipers on permanently
    does he?!). If so, yes it's probably the head unit. It's very rare to
    get interference on tape but not on radio - moreover it's usually the
    other way round, isn't it?
    
    Dan