rogerguzzi
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Posts posted by rogerguzzi
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1 hour ago, NonMember said:
I don't know whether Marcus Bewley up in Cumbria still does diffs? My GT6 has one of his.
I have one of his in our Spitfire and it has covered 10,000+miles and still seems quiet
Roger
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1 hour ago, Mathew said:
Thats pretty good, whats your driving style?
Hello Mathew
There was no motorway driving in this and we tend to drive spiritedly especially on the twisty bits (3rd gear and in and out of overdrive sometimes 2nd and overdrive)
I think if I did a long drive on an A road at 50/60mph and level it would be nearer 50mpg
Roger
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Hello All
I have just done me sums again and in 2787 miles I used 58.5 gallons = 47.64 mpg
So is a bit better than I thought and the engine has done over 13,000 miles since the rebuild
Roger
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2 minutes ago, Mathew said:
I remember its possible to get near 50mpg from a spitfire. Std cam, flowed head , k and n filters, richer needles and a cold air feed to the carbs. And most importantly a steady driving style.
Hello All
I have fuel injection with ITB's and Microsquirt ecu
The engine is fully balanced and a Newman fast road cam, head ported by me! rods polished balanced and shot peened the block is decked and compression ratio is about 9.75 to 1, 4 branch manifold I have a 28% overdrive and I can use it on 2nd gear when needed(up hill twisty roads!)
I have noted the fuel over the 3500 miles and I am getting 45mpg overall
I can see a few places it could be leaned off from the guage in the car!
I am not going to at the moment as I think that E10 may make it a bit weaker although I give the ECU a 6% control to alter things
Roger
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2 hours ago, PeteH said:
P.s. Rogerguzzie: do you know what the two small Aeroplanes are?. The all yellow one is vaguely like a Stimpson, But the blue one with chequer tail?, escapes me?. It has the look of one of the Check, Aerobatic models?.
Pete
Hello Pete
The yellow one is a Pitts special and the other is a Yak 52 I have forgot what the other Yak is
If you go to aircraft registations you can read about them
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1 hour ago, Colin Lindsay said:
Ridge reamer tool:
Hello Colin
I thought this might be medical (Warped Mind!)
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Hello Alan
Behind the lefthand boot hinge(looking from the back)
Roger
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36 minutes ago, Iain T said:
I use Redline Shockproof 75W140, it was recommended on this Forum.
Iain
Hello
I use this oil as well and have done for about 8 years! it seem to come out the same colour as when it went in!
Its a bit expensive but so is a diff rebuild!
Roger
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Hello Chris
I thought of doing this but someone on another forum pointed out it alters the geometry and it has taken him some time to get it back to handle the same!
The pivot is a bit farther out! so a lot of work to sort out!
Roger
ps it addled my brain so just oiled the trunnions again as usual
Roger
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8 minutes ago, PeteH said:
3) If it needed can the 1300 Head be transplanted?. I know my existing engine head was a club shop conversion at about 80K miles
Hello Pete
It would raise the compression ratio a bit unless you open up the chambers a bit.
Roger
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Hello All
That's how I fitted the ones to Spitty
Roger
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Hello John
I think the cam sizes seem about right for the small journal! just needs the block line bored
But there are better people on here that know better !
Roger
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Hello John
The WSM gives 1.9659 - 1.9664 for end journals
1.9440 - 1.9654 for middle ones
Haynes gives the same and also 1.9680 - 1.9695 for the block
Roger
ps large journal cam take one from the other and you get 0.125" give or take a bit so 0.0625" shell thickness! (I mean small journal cam)
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Hello John
They are the same bearings just 2 less so the same! they only left them out to save money!
Basically you have got to have the block bored to the same(Triumph saving money!)
We love our cars but they were parts bin made sometimes!
Just look how many parts fit so many different models?
If you you look at large journal and small journal cams it is the shell difference in diameter!(cheap!!) and more than adequate for a road car!#
Roger
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2 hours ago, JohnD said:
I've found these specs in the GT6 Mk 1 WSM:
Camshaft
New Dimension Inches
Clearances Inches
Journal Diameter
1.8402
0.0026
1.8407
0.0046
Bore in block
1.8433
1.8448
Please ignore the heavy table lines - I didn't put them in!
But what do these specs mean? Why two dimensions for the journal and bore widths? Were these the tolerance Triumph worked to?
A journal width 1.8402 in a bore 1.8433 has a clearance of 31 thou. A journal 1.8407 in a bore 1.8448 has a clearance of 41 thou! Neither agrees with the stated clearances!
Confusing!
This doesn't answer the machinist's Q, what dimension to bore out to for bearings, but could inform the decison, if I had some illumination!
John
Hello John
I think you will find it is 3.1 Thou and 4.1 Thou
Roger
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Hello Jeff
I do not think Lucas would have fitted one of those.
That is a shakeproof type!
They normally fitted the wavy washer that acts like a spring if you google wavy washer you will see what I mean
Roger
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Hello All
I fitted bearings to the new engine and as far as I know they are still ok (1500)
But I did turn up a Go and No Go gauge to check the bores to make sure they would be ok!
But 5k to 8k later they are still ok.
But John you need a GOOD machine shop to bore them in line and to size
Roger
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49 minutes ago, Jeffds1360 said:
All is silent ... all is swell (sweet and well)
Fitted the C40L with a ? 3/8 ? ish spacer and it is soooooo quiet!
Never realised how noisy the old one was. which goes click diddy click, click wham boo, just spinning by hand !!!
Now to get those overider cages jammed up :(.... separate post and problem
Thanky you Mr Rogerguzzy
Hello Jeff
Did the bracket I sent you not fit then?
Roger
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Hello Jeff
I have a rebuilt Dynamo that has not done many miles going spare if you are interested?
I have the paper work for the repairs somewhere!
I came off our Mk1 Vitesse as I am going to an Alternator
Roger
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Hello Jeff
I drove the car home with hard top on.
It was removed the next day or so and never went back on(its was a convertible!)
Still each to there own.
Roger
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Hello All
I have found the receipt for the veneer and it is the one I put a link to(not from that firm)
Roger
twin CD150 linkage
in Fuel System
Posted
Hello All
I did the same but I think I used 7mm ones and turned the spinles down as I was fitting new throttle discs (not sure why I used 7mm pehaps they were cheaper?)
Roger