1999 GS 3.0 GSPWTR throttle cable doesn't seem to have enough adjustment

[insttech1]

When I took it off for carb rebuild, it sprang forward 3/8" from idle position. After rebuild, carb is running well and mostly tuned, without cable.

Tried to turn cable end in; it stops about 5/16" too far from attachment. Looked (and got head stuck!!) under gunwale at the controls side. There's only about 1/16" left before I bottom out there.

Locking collar on the engine cradle is tight and holding cable properly. Am I missing any other adjustments? I know it need to go on with slight preload; problem is, it's pushing out too far, which you think would be engaging throttle considerably early, but it's not working that way.

I lubed up both ends with a bit of bearing grease; it slides and actuates freely. Even greased all the throttle linkages by hand and feel with grease on the end of my finger. They're quiet now, and move smoothly.

Engine now turns over in one shot without applying any throttle manually w/ cable removed, pretty much as I believe it should. Before carb rebuild, I had to pump 6 times and turn over once or twice.

Thoughts??

 

[insttech1]

Re: 1999 GS 3.0 GSPWTR throttle cable doesn't seem to have enough adjustment

any info anyone? and does the locking nut on the control cable end actually lock anything? Both locking nuts for throttle and shifter are loose on their shafts; it seems to be the piece where you remove the cotter pin/clip is the only one that actually counts, and I've got no more adjustment...

 

[Don S]

Re: 1999 GS 3.0 GSPWTR throttle cable doesn't seem to have enough adjustment

You will need to adjust the other end of the cable in the control box. If the lock nut wasn't tightened down, the cable could twist and the adjustment change.

 

[insttech1]

Re: 1999 GS 3.0 GSPWTR throttle cable doesn't seem to have enough adjustment

Hi Don,
Do you mean the linkage assembly at the controls themselves? Where you have to remove the clip, pop the adjustment collar off, twist it on the cable, and then re-install? If so, that only has about 1/16" left to tighten up. I need about 5/16 to 3/8" more travel. I was also thinking of cutting a 1/4" of cable off at the engine side. I have about 1.5" of thread at the engine side, and about 7/8" of adjustment travel on the carb attachment part, but it's screwed on as far as it can go.

It takes about 20% of my throttle travel from the in-gear position until the actual carb throttle moves.

Also, I edited my original post. I thought that I would be over-throttling when when I engaged the cable, but that's not what happened. It's too slack.

And is there any other place for these to be connected for rigidity? No other clips around the transom or under the gunwale that I should be looking for?

Thanks!

 

[Don S]

Re: 1999 GS 3.0 GSPWTR throttle cable doesn't seem to have enough adjustment

When the boat manufacturers get the engine and drive packages from Volvo, there are 2 sizes of eyes (#6 in the picture) that come with the kits, maybe you have the wrong one. Post a picture of the one you have, maybe I can tell by looking if you have the long or short one.
there is about a 3/8 difference as I recall.
You linkage is hooked up to position shown by the triangle with the A in it.

 

[insttech1]

Re: 1999 GS 3.0 GSPWTR throttle cable doesn't seem to have enough adjustment

Thanks Don,
That explanation of two eyes definitely makes a difference!

My carb linkage is hooked up correctly, and to the top post; not the bottom one.

I loosened nut #5 to inspect block #2, but do not recall seeing a part that resembles #3.
If it sits directly behind block #2, maybe I just didn't see it from the front.

I'll post a pic' when I get home.

Thanks!!

 

[Don S]

Re: 1999 GS 3.0 GSPWTR throttle cable doesn't seem to have enough adjustment

#3 is round and fits into the round hole in 2. They fit on the cable tight. Probably looks like part of the cable, but it's not.

 

[insttech1]

Re: 1999 GS 3.0 GSPWTR throttle cable doesn't seem to have enough adjustment



Don,
Here it is; rather poor light.

The actual part is 36mm long (1.41")

Thanks Again!

 

[Don S]

Re: 1999 GS 3.0 GSPWTR throttle cable doesn't seem to have enough adjustment

That is the short one.

Not sure what the problem is.

 

[insttech1]

Re: 1999 GS 3.0 GSPWTR throttle cable doesn't seem to have enough adjustment

OK let's talk about the "slight preload" setup then. I'm assuming that my cable should adjust to match the post when control level is place to "in gear" position, but no extra throttle, and then just a hair of tension on it, so carb throttle moves as soon as control lever moves.

I'm going to look at all of the adjustment points, tighten the control end that last 1/16", and see how close the cable will be. I'm assuming I'll only gain a 1/16", but we'll see. Is it difficult to pull the entire control assembly off so I can look at the connection side and see if something is amiss? I saw how to disconnect the throttle and shift linkages there, but not how to pull the whole assembly off.

Thanks!

 

[insttech1]

Re: 1999 GS 3.0 GSPWTR throttle cable doesn't seem to have enough adjustment

Alright well I looked at everything, could not see any problems with any of the mechanisms, so out comes the dremel tool. I took 1/4" off the cable at the engine side, and re-assembled everything. There is virtually no pre-load on the adjustment.

Took the boat out on the water today; throttle is much more consistent, smooth, and runs through the full length of the carb travel. Funny how that little stuff works

I don't know why this adjustment was mis-matched, and the cables are still labeled as original blue volvo penta products, but I'm much happier with the controls now.

Thanks Much!