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1Back to top Go down    Stuck injectors on Wed Apr 22, 2015 5:28 pm

aladin1

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Trying to remove the injectors and fuel tube on my K100 RT for a renovation but I can't get them out........followed my Clymer instructions all the way but they don't want to come out. HELP!

    

2Back to top Go down    Re: Stuck injectors on Wed Apr 22, 2015 8:40 pm

RicK G

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They can be very stubborn, remove the clip from the top of the injector, it holds the injector to the rail. Remove the rail then work on one injector at a time. Make sure to clean around the base of each injector to prevent dirt going down the port.
I have had to put a lever under the rail at times as the O-rings virtually vulcanize themselves to the rail and head. Soaking some fuel around the base can help release them.


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If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

3Back to top Go down    Re: Stuck injectors on Thu Apr 23, 2015 3:43 am

aladin1

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They can be very stubborn, remove the clip from the top of the injector, it holds the injector to the rail. Remove the rail then work on one injector at a time. Make sure to clean around the base of each injector to prevent dirt going down the port.
I have had to put a lever under the rail at times as the O-rings virtually vulcanize themselves to the rail and head. Soaking some fuel around the base can help release them.

I've removed the clips but I can't budge either the injectors or the fuel rail.......I'll try some fuel around the injectors.

    

4Back to top Go down    Re: Stuck injectors on Thu Apr 23, 2015 6:12 am

Holister

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I stuck a hammer handle under the rear end of the rail and levered the end ones first. Took a bit of force but once it was a little loose it came out very easy.


__________________________________________________
1988 K100RT VIN No. 0094680
1989 K100RT VIN No. 0097367 (naked)
1996 K1100RS VIN No. 0451808
Fuel: 95 Octane
Engine Oil:Nulon Full Synthetic 15W50
Gear Box Oil: Nulon Synthetic 75W90
    

5Back to top Go down    Re: Stuck injectors on Sat Apr 25, 2015 1:44 pm

aladin1

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I stuck a hammer handle under the rear end of the rail and levered the end ones first. Took a bit of force but once it was a little loose it came out very easy.
Tried that method with a bit of 2 x 1 timber and........ Off came the fuel rail nice and easy, followed shortly (after some persuasion) by the injectors which are in a poor condition, so it's off to the injector doctor for them and some TLC. I've seen a company online that charges 12.50 per injector for refurbishing which sounds reasonable compared to new ones which don't seem too available anyway.

Now for those seized exhaust nuts and studs..........wish me luck!

    

6Back to top Go down    Re: Stuck injectors on Sat Apr 25, 2015 8:13 pm

RicK G

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Use a nut splitter on the exhaust studs when they are being difficult. We have seen many a broken stud here trying to get those nuts off.


__________________________________________________
If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

7Back to top Go down    Re: Stuck injectors on Sun Apr 26, 2015 5:34 am

aladin1

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Rick

The nuts were so rusty that I drilled a small hole into them and after applying heat I used a nail punch and hammer to turn them. All of the nuts split and came off better than I expected so that was a good result. Unfortunately two of the studs are a little bent although the threads on all 8 studs are usable.....so do I go all the way whilst the engine is out and try to remove the studs or leave well alone?

    

8Back to top Go down    Re: Stuck injectors on Sun Apr 26, 2015 6:24 am

RicK G

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That is a difficult call that one. I personally would get them out but they still can snap easily. I would make them cherry red hot and then let them cool, then give them a solid whack on the end and double nut and they will have the best chance of coming out. Here is where I insert the usual disclaimer like "it's really your call and I take no responsibility at all and if they break it's your problem" and besides I am in Australia. Laughing While the engine is out is a good time to do it. When you put new ones back in use grade 5 steel studs and put never seize on the threads and copper or brass nuts.


__________________________________________________
If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

9Back to top Go down    Re: Stuck injectors on Sun Apr 26, 2015 11:59 am

aladin1

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That is a difficult call that one. I personally would get them out but they still can snap easily. I would make them cherry red hot and then let them cool, then give them a solid whack on the end and double nut and they will have the best chance of coming out. Here is where I insert the usual disclaimer like "it's really your call and I take no responsibility at all and if they break it's your problem" and besides I am in Australia. Laughing While the engine is out is a good time to do it. When you put new ones back in use grade 5 steel studs and put never seize on the threads and copper or brass nuts.

While the engine is on the bench I've got to try and get them out, it's not worth future hassle leaving old studs in. I'll try your method and if it all goes pear shaped I will reflect on your disclaimer. You may well be at the other side of the globe but so are my mates in Melbourne ha ha!

    

10Back to top Go down    Re: Stuck injectors on Wed Apr 29, 2015 3:18 pm

the.postman


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I got my exhaust studs out HERE

I would suggest using a bit of heat before you attempt undoing


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1985 K100 RS 104EA49840092 #0081788 SILVERish (Madison) Prod. date 05/12/84
1984 srx 600
1986 cbr1000f/h
    

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