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by Peter Connan
20 Jul 2018 14:39
Forum: 09. Engines
Topic: Understanding power vs torque on a dynometer
Replies: 4
Views: 69

Re: Understanding power vs torque on a dynometer

So, to sum up: As stated before, because power is a function of torque and speed, any two engines that produce the same torque at the same RPM will also produce the same power at that same speed (RPM). But that only applies at that specefic RPM. Also, there are many factors that affect the accuracy ...
by Peter Connan
20 Jul 2018 14:23
Forum: 09. Engines
Topic: Understanding power vs torque on a dynometer
Replies: 4
Views: 69

Re: Understanding power vs torque on a dynometer

To expand somewhat: A chassis dynomometer has some element (normally the rollers under the wheels, but there are ones that bolt directly to the hubs) which is driven by the car. These driven elements (rollers from now on) are braked somehow to create a load. There are many different types of braking...
by Peter Connan
19 Jul 2018 18:36
Forum: 13. Electrical & Electronics
Topic: Dirk's Patrol gets even more TLC!
Replies: 10
Views: 144

Re: Dirk's Patrol gets even more TLC!

It was known as "Grant's Patrol" and soon it will be know as "Anthony and Michael's Patrol that they lends to Dirk for trips" :rolling: :rolling: Seriously though it is looking better and better with all the attention to deal. What was the reason for the Dynamat and foam in the doors? :rolling: :ro...
by Peter Connan
17 Jul 2018 19:17
Forum: 01. Start Here
Topic: New member - need advice on tuning TB42s
Replies: 10
Views: 306

Re: New member - need advice on tuning TB42s

It should fit between the carb body and the washer. I actually doubt it makes much difference, as it will not effectively seal off the thread. I also find it very difficult to find the point where you have to stop un-screwing on this engine. The idle mixture screw doesn't seem to make a huge amount ...
by Peter Connan
17 Jul 2018 18:52
Forum: 01. Start Here
Topic: New member - need advice on tuning TB42s
Replies: 10
Views: 306

Re: New member - need advice on tuning TB42s

Interesting... Perhaps there is something wrong with (or somebody has modified) the mechanical advance mechanism? Perhaps check the advance at higher revs? According to the graph in the workshop manual, mechanical advance should top out at about 1400 rpm and between 10 and 12 degrees advance. This i...
by Peter Connan
17 Jul 2018 18:05
Forum: 10. Drivetrain
Topic: Free Wheel hubs & Auto Lockers
Replies: 7
Views: 144

Re: Free Wheel hubs & Auto Lockers

I doubt the seals would have gotten damaged, as part of their maintenance procedure is to lock the hubs once in a while. But I often drive for extended periods with the hubs locked, and have never noticed it making any difference to the performance, the weight of the steering or even really the fuel...
by Peter Connan
16 Jul 2018 11:25
Forum: 29. Events
Topic: RIVER TRIP 09-13 August 2018
Replies: 54
Views: 2425

Re: RIVER TRIP 09-13 August 2018

:think:

Hoekom is my naam nie op die lys nie?
Is ek verban?
by Peter Connan
16 Jul 2018 05:13
Forum: 01. Start Here
Topic: New member - need advice on tuning TB42s
Replies: 10
Views: 306

Re: New member - need advice on tuning TB42s

Dustin, there should not be an evap cannister or EGR on these.

Check the tank's breather system, it is located under a plastic cover in the driver's side rear wheel-well, under the filler cap. I am not sure but I think the filler cap itself should also be able to breathe.
by Peter Connan
15 Jul 2018 08:04
Forum: 01. Start Here
Topic: New member - need advice on tuning TB42s
Replies: 10
Views: 306

Re: New member - need advice on tuning TB42s

Dustin, that is the correct port for the vacuum advance, whichs brings up another question: These engines are very sensitive to ignition timing. Mine will ping audibly at higher revs and loads at anything over 7 degrees idle advance. Thus I must wonder whether your crank pully hasn't perhaps shifted...

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