Search found 777 matches

by Duncan M
Sat Jul 29, 2023 7:53 pm
Forum: TABC Chat
Topic: H2 carb float bowl orientation
Replies: 8
Views: 1739

Re: H2 carb float bowl orientation

Dave, you need a smaller diameter tube for your preferred adjustment method. Sounds like one of those very small dia. cocktail straws might be what you need. The fuel level in the float bowl is directly related to the fuel level in the jet. When I switched to the nitrophil floats, I recall it was tr...
by Duncan M
Thu Jul 27, 2023 2:33 pm
Forum: TABC Chat
Topic: H2 carb float bowl orientation
Replies: 8
Views: 1739

Re: H2 carb float bowl orientation

Moving them does effect the fuel height in jet. Something to keep in mind when adjusting fuel height in jet.
page 29
https://www.namgar.com/images/uploads/C ... er30.1.pdf
by Duncan M
Fri Jul 21, 2023 10:21 am
Forum: TABC Chat
Topic: breather
Replies: 10
Views: 1984

Re: breather

If those numbers are from an XPAG dry test, then the compression ratio of the engine is likely around 9:1 and about 75-80hp.

here is a different source for the WKF Wood XPAG document. Loads much faster from this source- http://www.tcmotoringguild.org/techinfo ... ewrite.pdf
by Duncan M
Thu Jul 20, 2023 2:02 pm
Forum: TABC Chat
Topic: Heat soak/Vapour lock - advice please
Replies: 16
Views: 4527

Re: Heat soak/Vapour lock - advice please

The new ethanol laced gasoline (10% or whatever) will go bad quite a bit faster than real gasoline. Seems to go bad faster in warmer weather. One months is not unheard of. Not any studies on effects of bad gas on hot starts. My TC had louvre's punched on top around 1951 and the car has never had a h...
by Duncan M
Wed Jul 19, 2023 3:15 pm
Forum: TABC Chat
Topic: breather
Replies: 10
Views: 1984

Re: breather

A quick look at the WKF Wood period treatise on the XPAG will show the expected compression reading on a good "stock" XPAG with stock compression to be in the 90-100PSI range. page 7/54. When the compression ratio is bumped up from stock 7.25:1 to 8.3:1 you can expect to find around 145psi. page 11/...
by Duncan M
Tue Jul 11, 2023 11:38 am
Forum: TABC Chat
Topic: breather
Replies: 10
Views: 1984

Re: breather

To help, we would need to know if you are running it all in stock configuration, or specifically what has been changed. Having an aftermarket rocker cover, with no venting, can cause troubles. Using something other than the stock tappet cover and breather tube can cause troubles. Dirty oil will make...
by Duncan M
Mon Jul 03, 2023 11:46 am
Forum: TABC Chat
Topic: BMC Replacement engine
Replies: 28
Views: 3784

Re: BMC Replacement engine

Supertech DOT3 from walmart is great stuff. Any Dot 3 is fine, unless your car currently has Dot 5 in it. 3/4/5.1 do not mix with (silicone) Dot 5. Technically, DOT3 is less hygroscopic than DOT4. Vintage racers with brakes that get real hot use 5.1, which is not silicone. I carry a temp gun in the ...
by Duncan M
Fri Jun 30, 2023 4:25 pm
Forum: TABC Chat
Topic: Camshaft Life
Replies: 6
Views: 762

Re: Camshaft Life

It could be that the vendor did not send you what you ordered. According to WKF Wood (p8 of 54) http://www.ttalk.info/WKF-Wood-XPAG-Engine-Book.pdf The lifter bore should be .906 inch (23mm) and the tappet clearance should be .0015 inch. In other words, the tappet dia. should be .9045 inch. I found ...
by Duncan M
Sun Jun 25, 2023 1:15 pm
Forum: TABC Chat
Topic: BMC Replacement engine
Replies: 28
Views: 3784

Re: BMC Replacement engine

Ray, does the term "vintage" and the 1931 date determine some sort of tax or safety certificate exemption in UK? If so, there is nothing comparable in the US. AFAIK, in most or all US States, if you have a car that was originally sold with (for example) no turn signals or running lights, carbide hea...
by Duncan M
Sat Jun 24, 2023 6:45 pm
Forum: TABC Chat
Topic: TC wing piping question.
Replies: 19
Views: 2801

Re: TC wing piping question.

No wonder so many TC owners say they cannot fit Model A sized 475/500-19 tires. On original bodywork cars the fit in the rear is tight, but it can be done--and they can be installed and removed pretty easily. With all these repop skinney rear fenders there simply is no room. Running the larger diame...
by Duncan M
Fri Jun 23, 2023 6:08 pm
Forum: TABC Chat
Topic: Voltage Control Box on a 1936 TA
Replies: 4
Views: 1130

Re: Voltage Control Box on a 1936 TA

The voltage regulator does know know the difference. You "flash" the dynamo. You do not use a battery cable to flash the dynamo, just a little wire. The wire may come from the voltage regulator. FromTheFrameUp has a instruction sheet on their website. Here it is-- https://cdn.shopify.com/s/files/1/0...
by Duncan M
Fri Jun 23, 2023 6:00 pm
Forum: TABC Chat
Topic: Lucas Directional Switch (turn signal)
Replies: 5
Views: 719

Re: Lucas Directional Switch (turn signal)

Only the EXU cars had turn signals and a turn signal switch. TC7556 is not an EXU car, so you could have any number of possible arrangements to your turn signals. Always best when toubleshooting turn signals to check the bulbs on the bad side-- and whatever grounds and power supply they may have.
by Duncan M
Fri Jun 23, 2023 1:10 pm
Forum: TABC Chat
Topic: TC wing piping question.
Replies: 19
Views: 2801

Re: TC wing piping question.

The front wing and running board are perfectly aligned and contoured together, but they are joined together and continuous. The rear of the running board on a TC does not join with the rear wing, so there is no reason for the outer edges to be in any sort of alignment. But, many rear wings you see o...
by Duncan M
Fri Jun 23, 2023 9:19 am
Forum: TABC Chat
Topic: TC wing piping question.
Replies: 19
Views: 2801

Re: TC wing piping question.

Wow. Running the piping across the gap? Seriously? That makes no sense and looks foolish.

Here is how the factory did it in October 1949-
thumbnail (17).jpg
by Duncan M
Fri Jun 23, 2023 8:48 am
Forum: TABC Chat
Topic: BMC Replacement engine
Replies: 28
Views: 3784

Re: BMC Replacement engine

Of the 3 plugs on the differential (drain, fill level, and filler plug on top) you want to be sure the vent in the filler plug is clear/open. If you can get a whole quart in there without overflowing at the fill level (open) plug, I will be surprised. Let us know.
IMG_1478.JPG
by Duncan M
Tue Jun 20, 2023 10:51 pm
Forum: TABC Chat
Topic: BMC Replacement engine
Replies: 28
Views: 3784

Re: BMC Replacement engine

The gearbox and differential will each take almost a regular US quart. You should have a little left over. I tried standard 140W (GL4) in the gearbox and found that when filled to the proper level it foamed like crazy. Now I use the Redline NS in the same multi-weight (75W-140 NS) as Steve suggested...
by Duncan M
Sun Jun 11, 2023 12:49 pm
Forum: TABC Chat
Topic: Poor (at best) braking on my TC - advice requested
Replies: 22
Views: 9137

Re: Poor (at best) braking on my TC - advice requested

My braking was poor until I finally got the system bled properly. And I am using DOT 3/4 which is typically considered pretty easy to bleed. A suction bleeder applied to the front nipples finally resolved the issue.
by Duncan M
Sat Jun 10, 2023 11:45 am
Forum: TABC Chat
Topic: Rear wing piping
Replies: 4
Views: 701

Re: Rear wing piping

Originally? My guess would be something along the lines of what (in the USA) we would call a furniture tack. They come in all sorts of sizes.
513+Ht+m9IL._AC_SX522_.jpg
by Duncan M
Wed May 24, 2023 9:29 am
Forum: TABC Chat
Topic: Octane #
Replies: 4
Views: 1077

Re: Octane #

The distributor advance needs to be changed for supercharging. General rule is for full advance much sooner than normally aspirated.
by Duncan M
Mon May 15, 2023 9:09 am
Forum: TABC Chat
Topic: Ignition coil heating up
Replies: 42
Views: 5138

Re: Ignition coil heating up

The ONLY adjustment you should try to lower battery voltage from being over 15V is discussed in the center document, figure 11.11 under 3. The screw B should only be turned a very small amount. If the screwdriver slot can be viewed as the hour hand of a clock, you would only want to try about a half...