Re tipping valve. The tipping valve shuts off the connection between the brake fluid reservoir and the bore for the master cylinder's rear piston.  When the ...   06-20-2007 05:44 pm

Joel wrote: Ok, so they worked fine for a day or so.  I gave them more of a workout today and the pedal is almost ...   06-20-2007 04:39 pm

Yes.  Richard Calver's book.  I've seen it offered for sale at the club store.  It's not always available, though. ...   06-13-2007 03:51 am

New fiberboards are available from Delta Motorsports for a reasonable price.  They fit. ...   06-11-2007 02:47 am

Yes, the vacuum valve (AKA air valve) is the piston-like part.  It has a steel tube that slides up and down inside a mating steel tube ...   06-06-2007 09:10 pm

Yes, that looks like the right tool.  Delta Motorsports also sells them, and the Club Store may also handle them. IIRC, raising a vacuum valve and having ...   06-06-2007 04:50 pm

For what it's worth, I just ran across this site:  http://www.mez.co.uk/lucas.html It's got a cute fuse drawing, the usual Lucas japes, the text and photos from ...   06-06-2007 01:40 am

The reducer is just a couple of brass fittings that I had on hand, that would fit together and happened to be the right sizes to ...   06-04-2007 02:35 pm

See http://jhppg.com/gallery/album76/DSC00013 for a photo of what I did on my car.  The fittings are all standard nylon bits from the local hardware store, the bushings ...   06-04-2007 04:28 am

Presuming that the Pertronix coil is the type that works without a ballast resistor, that your valves are sealing and your compression is good, and that ...   06-02-2007 05:50 am

smcmanus wrote: Needles......oops B1CM front which came with the car; B1DK rear which came with the spare carbs.   Can I use the B1DK needles in ...   05-20-2007 07:22 pm

First, check to see if your throttle pedal contacts the car's floor before wide-open-throttle has been obtained.  This could be due to a bent throttle pedal or the ...   05-20-2007 03:50 am

(1) Ensure that the fuel float in each carb is set to the identical level (0.688" nominal), and that the same thickness washer (0.087") is used under each ...   05-17-2007 04:53 am

I agree with Steve.  I've had a Facet / Purolator pump in my car for about six years now and it's still going strong.  And as pumps of ...   05-17-2007 04:33 am

You can also use the calipers from a later Spitfire.  There are some minor differences but AFAIK they are not significant.  And JH pads will ...   05-14-2007 04:28 am

At the absolute minimum, there should be a filter upstream of the fuel pump to protect the pump from rust and debris in the fuel ...   05-14-2007 04:20 am

I concur.  I installed one of Delta's carpet kits 5 or 6 years ago and it still looks very good.  The only drawback was that ...   05-04-2007 05:06 am

Well, yes, if the bare wire is shorting to the engine block, then the gauge will read high.  The way I read your question, though, it ...   05-02-2007 10:48 pm

If the measured coolant temperature is circa 160° the gauge should read a needle's width (roughly) below mid-range.  If it does not, the first thing to check ...   05-02-2007 06:21 am

Normally that function is handled by a set of contacts within the starter solenoid.  There should be a white-yellow wire from the solenoid that runs to ...   04-29-2007 05:26 am

Thanks, John, you're very kind.  I've made it one of my missions in life to ensure the spread of good accurate information about the JH, ...   04-28-2007 12:01 am

Firing order is 1-3-4-2.  The rotor moves COUNTER-clockwise (CCW) when viewing from dist. cap end of the distributor.  Your first photo, if correctly annotated, indicates ...   04-27-2007 10:54 pm

Didn't see a mention of coil type in any of the posts so I'll presume you are using a standard coil with the ballast resistor ...   04-27-2007 03:57 am

Joel wrote: Now, if I can just figure out why my brakes is acting funky. . .  They seem to be sticking so that they ...   04-25-2007 06:16 am

my75jh5 wrote: At idle it will stay about half way, but driving and especially on the interstate it will climb to about 3/4 or a ...   04-25-2007 05:47 am

There's a set screw in the side of the vacuum valve , which needs to be slightly loose if the mixture is to be adjusted.  The directions in ...   04-23-2007 11:08 pm

My car has stock cams and cam timing (110 IN / 110 EX).  The vacuum retard is disabled, and the ignition timing is 12° BTDC.  That's where I get what ...   04-22-2007 06:25 pm

smcmanus wrote: I thought that a lift of the vacuum valve would cause the mixture to richen.  That issue has tripped a lot of folks over ...   04-22-2007 03:16 pm

Once warmed up, a JH engine with un-worn and properly set-up Strombergs should idle quite smoothly at 1000 rpm, and with increasing roughness down to 400 ...   04-22-2007 04:50 am

The temp sensor wire runs from the terminal on the sensor to the 5-pin connector set in the engine bay.  The engine end of this connector set is ...   04-20-2007 03:34 am

Most JHs used a Lucas model 25D4 distributor, which was also used in many other British 4-cylinder cars.  Consequently, the rotor for the JH is the same ...   04-19-2007 05:11 am

The radio power normally comes from the AUXILIARY position of the ignition switch.  Normally this will be a white-blue wire that comes from the connector into which the ...   04-18-2007 04:44 am

Kurt may well have the right of it.  Sometimes all it takes is a virtually invisible film of moisture inside the distributor cap, particularly if the ...   04-14-2007 04:52 am

I don't think this would work.  The MG part might perhaps fit mechanically, but it seems to lack the steering lock mechanism and release button.  Also, you'd have ...   04-05-2007 04:20 am

From my 1974 parts book: Air drying paint: manufacturer GIP, GL 31032. Low bake paint: manufacturer GIP, LSC 31032. I don't know if these numbers are still current, or ...   03-20-2007 03:46 am

Haven't seen this problem in decades but it was not unheard of in the early days of foreign-made auto parts.  In any event, the short answer is yes, ...   03-18-2007 05:11 am

Given the size and thickness of the door boards it would be a bit tricky to replicate them at home unless you have access to some very ...   03-14-2007 03:11 am

If your car has Strombergs, there's a multi-part carburetor overhaul article in the JHPS magazine (March-June 2005) that covers the gadget in question.  If those magazines aren't available, and ...   03-14-2007 02:58 am

Thank you, Joe!  I have annotated my shop manual accordingly. ...   03-10-2007 02:31 am

For an engine to run, you need: Sufficient compression Sufficient spark, at the right time Proper fuel-air mixSince the engine was running, lack of compression is ...   03-07-2007 04:13 am