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Triumph TR6 - numb foot

Guys: My 72 Tr6 has a really irritating vibration in the accelorator pedal. I know these things are based on tractors(or so I hear), but on a long trip it sure puts my foot to sleep. Is this normal or do I have an unbalanced crankshaft, flywheel or something? Any thoughts?
Joel

Joel--Could be your cross-shaft bushings are missing. If so, prepare thyself for a grueling install of the original bushes, or try Nelson Reidel's alternative at Buckeye.

Rick O.
72 Six
Rick Orthen

Joel
this is not normal..at any speed. You must be able to feel a vibration in the steering wheel or the gear shift lever also if you feel it in the flimsy gas pedal. Is the whole car vibrating? Do u have it at just a certain speed/RPM? Did this just start to occur? If u rest your other foot on the clutch or brake do you feel it? If at a certain speed could be tyres. There was a recent post about a vibration coming from the prop shaft. Having the tyres reballanced is a fast/cheap source of elimination. Give us a little more info Joel.
Rick C
Rick Crawford

Joel
If it is what Rick O says....MAN, do I fell sorry for u!
Pop the bonnette, grab the cross shaft,does it move? You should be able to see the 2 bushes at either end of the cross shaft where it disappears into the interiour of the car.
I was lucky enough to be able to replace them both while standing where the engine should be with zero interiour in the car....still difficult!!
I just went to the Buckeye site and deffinitely some better suggestions that the original delrin plastic bushes...and one heck of a lot easire to replace!! Beleive me, (and the article) try to avoid using the original bushes!!
Rick C
Rick Crawford

I've got the same vibration, but didn't get it until I changed over to Weber down drafts. I think that it is due to the differance in the linkage. The bushings are worn out and the alternate sounds good. What is the Buckeye site url?
Joe Justice
Joe Justice

Joel--Here's the Buckeye bushing install:

http://www.buckeyetriumphs.org/technical/AccBearing/AccBearing.htm

BTW: do you wear shoes when you drive?

Rick O.
72 Six

Rick Orthen

I remember a press report about a Spitfire driver, in USA I think, who drove for 15 hours with his knee pressed against the transmission tunnel, and was unable to walk afterwards. So six cylinders really are better than four.
Peter Cobbold

Thanks for the info guys. Maybe I'll just dip my foot in coffee. Rick, this is a firing vibration. It's definitely not undercarriage related. I suspect what I'm feeling is the engine firing, It's that fast. I'm not sure it's irritating enough to warrent the torture described in the cure.
Joel

Oh Rick, BTW. absolutely no vibration anywhere else in car. steering wheel perfect, smooth. Also, other pedals are fine.
Joel

I am not sure what Nelson's version is but I have an article on replacing them that uses bronze bushes. I wish I had read it before I did mine.If any one is interested it was in The vintage Triumph Mag this year.
Don K.




DON KELLY

Joel
good to hear it is only from that HO 2.5L straight 6 tractor engine. You did not say if either of the bushes is missing or if you had play in them.
Don and Joel the Buckey replacement sounds pretty easy....bronze bushes. A nice little job for a monday night ( would not want to take away from your weekend driving time:)
Rick C
P.S. If you used heavier souled shoes instead of those beach shoes you might not feel it:)
Rick Crawford

Rick; "Choes? We don't need no steenking choes."
Not actually that bothersome. Think I will shine it on for now. Thanks for the help.
Joel

Hi Joel and Guys

Any hard bushing nylon or rubber requires a press effect of some type. Nelson has some ineresting idea's but this is mine. And its how they did it and it works for me. In a factory situation a specific tool would have been made with an outside girdle on the push side. Preventing possible distortion. Not required under due care.

Take the bushing warm room temp. grease up a bit. You will need a socket or pipe 7/8 on the recieving side to brace tin and heavy washer to hold nut. Push side heavy washer or several. Put a grade 5 bolt in center bushing through the works nut on other end. If you have no one to hold nut some wives get cranky under cars snug up a lock washer. Center it the best you can. Take your 1/2 inch impact wrench and drive it in 3 to 5 minutes total time each side. If I am not clear on this ask. I am a better mech. than teacher.

OK you don't have air tools? You have a car with National fine threads through out? You require the calming effect of turning each half inch long bolt for 2 minutes. Thats nice.

To punch in using a press effect you will require a reasonably good impact wrench and compressor. Too slow by hand once it starts moving you don't want it to stop. In the trade its called bang it in. Beg borrow or rent one. Take down to the garage have them put in. Not a big deal. Get the bill and say honey see what I could have saved by spending this on air tools.?!!!

Joel your problem I am guessing from description of high frequency something is too tight too loose? Your linkage is touching the block under torque and power. Or the linkage is totaly locked up the other way. Maybe bad motor mounts. Mines apart so I can't be specific. Old trick is load it up with trusted driver against tree whatever and observe. Check that first.

Bill







B Brayford

Bill
I was waiting to see if you where going to add that one of the back tyres would lift up off the ground and turn right angles against the tree and.....

It is time for you guys down south to start to rub it in again...we got about 2 inches of snow last night...at least where I live.
And Mark complains it is too hot...EH!
Rick Crawford

Rick C:
Rub what in? it's been between 13 and 18 degrees the last 3 nights in Boise....but I guess that isn't really 'down south'...We have snow on the foothills around Boise. I'll be in the garage, with the heater turned up!
Rod
Rod Nichols

I used a steel washer of appropriate bore, Araldited in place, with a smear of molygrease- no problems for last ten years. Reckon it will outlast plastic bushes! And it upsets the Concours fraternity.
P Cobbold

Before you guys give me s*%t again about this super expensive place I live (nice though, but lacking thousands of wonderful miles of cruisable roads,{but a few REAL special ones}, I just did the throttle rod bushing job (virtually impossible), so I got a razor blade and trimmed the tapered side down till it would go in, with a 'snap'. There is no lateral stress on this item and the passenger side is held in place (you'll see that as you go), and the driver side, which, will probably stay put, can be secured with a tiny hose clamp up against it, if you desire.Just another offering, which is what the BBS is about, yes.
Peter G

Peter
Yup that is exactly what this BBS is about.
Intersting..that is how I did my 2 new ones..go up and read my second post and u will see I had a slight advantage.
Ha Rod..u are not a lot further south than me. I have heard u get some nasty weather.
Peter was not giving you s*%t. Just jealious...would love to be able to drive my 6 for more than 6 months of the year! Had that first drive Yet?
Rick C
P.S. The bushes are plastic and are of the delrin grade...very good resistence to wear and heat plus require no lubrication.
Rick Crawford

I've just driven my LHD car across Europe, and I have exactly the same problem. On a long run the vibration becomes painful on the feet. I have had the linkage bushings changed in the last year. Does this ever happen to RHD cars?
Paul Chandler

Guys: lighten up on po old Peter. Just because he happens to live in Hawaii is no reason to dis the guy. I spent a few years living on the side of Mauna Kea myself and it ain't all it's cracked up to be. It rained 250 inches a year. That's about 3/4 inch per day. Plus the expenses are overwhelming. So even though you're up there in snow country where if you pee by the side of the road, it freezes before it hits the ground, let's all take a moment and feel for those who get to drive their LBC's year round and probably don't even own a pair of shoes. It's so hard to haul a surfboard in a MG.
Joel

Joel
One thing us Eskimos have learned over the years is to know which way to face when the wind is blowing.

Po old Peter...I can put together a care package for ya...a slightly used rain coat and a pair of smelly sneakers.

Peter and I compared gas prices off line and it appears us METRIC CANUKS are paying more for the high test go go juice. And going metric was suppose to be good for Canada...HUH!
Rick C

P.S. Peter, you still have not told us how your first drive went.
Rick Crawford

This thread was discussed between 30/10/2002 and 05/12/2002

Triumph TR6 index

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