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Posts by Mark Rosenbaum
532 postsShowing posts 161-200 of 532

Ignition > Cap and Rotor (6 replies - 9215 views)

The 23D (no vacuum) / 25D (with vacuum) series and 43D (no vacuum) / 45D (with vacuum) series use different distributor caps.  I'm not sure about ...   05-10-2006 05:56 am

Electrical & Instruments > POLL: Headlights (15 replies - 13397 views)

Thanks for the offer, it's appreciated but not needed.  If it becomes an issue (meaning, if I ever have to drive the car after dark again), ...   05-09-2006 05:29 am

Engine & Transmission > New exhaust - can't make it fit (7 replies - 6841 views)

The exhaust is a tight fit in some places, and conceivably there might be a problem if your transmission mount, engine mounts, or engine damper are worn out and ...   05-07-2006 05:12 pm

Electrical & Instruments > car sat for 8 months. Fuel pump & starter don't work when ignition (12 replies - 12765 views)

The fuel pump derives its power from the ignition switch through a rather convoluted path.  If your brake lights work when the ignition is on and ...   05-07-2006 02:44 am

Engine & Transmission > New exhaust - can't make it fit (7 replies - 6841 views)

See the thread on this site at http://www.jensenhealey.com/forums/view_topic.php?id=47&forum_id=10 ...   05-07-2006 12:20 am

Suspension > Lug nut torque (3 replies - 5588 views)

The note below E11 para 8 isn't as well written as it might be.  What they are concerned about is any condition that results in ...   05-04-2006 05:19 pm

Suspension > Lug nut torque (3 replies - 5588 views)

For the lug nuts, 51 ft-lb dry is correct.  Stock wheel studs are 7/16" with 20 threads per inch, and the generally accepted maximum torque ...   05-04-2006 04:33 am

Engine & Transmission > Amount of oil for oil change (5 replies - 7156 views)

The shop manual lists different oil capacities for the new and old engine designs: New engine (engine # 2760 up):      10.8 US pints without filter change      12.0 US ...   05-03-2006 05:54 pm

Body & interior stuff > Seat recovering (11 replies - 11335 views)

Try holding the nut in place with the shaft of a screwdriver or something similar.  It might be necessary to drill a hole into the ...   05-01-2006 08:27 pm

Electrical & Instruments > Gauge Tags/Tach Testing (11 replies - 12448 views)

CJ- I can't add anything that might help with your tach, but the fuel and temp gauges get their power from the voltage stabilizer, which is ...   04-24-2006 04:36 pm

Suspension > Front Suspension Bolt Sizes ??? (5 replies - 8065 views)

According to my notes, the upper arm bolt (JH P/N 91290) is 1/2"-20 UNF x 9.13" Grade 5.  The flat washers (91323) and lock nuts (91324) ...   04-20-2006 05:18 am

Body & interior stuff > Seat recovering (11 replies - 11335 views)

I think the seat cover replacement article may be found in one of the online back issues in the 'club garage'.  I have a vague recollection of ...   04-20-2006 04:44 am

Ignition > Restoring the electrical harness' (11 replies - 10659 views)

I agree with Greg.  Having completely rewired several vehicles from scratch myself, I'll add that correctly using the proper crimping tools for your connectors is the ...   04-18-2006 05:28 am

Body & interior stuff > Original Finishes and Colors (2 replies - 3902 views)

From what I've seen, most undercarriage parts were painted semi-gloss black.  Original paint workmanship was indifferent at best, and when they bothered to apply primer, it ...   04-13-2006 05:20 am

Suspension > Front Coil Spring (17 replies - 16889 views)

Rex Craft wrote: Mark, I too appreciated the torque info on the drawing.  I was just frustrated when I made my original comment. I also ...   04-08-2006 06:39 am

Suspension > Front Coil Spring (17 replies - 16889 views)

Art's photos look pretty convincing to me.  Not at all sure how I missed seeing that, but obviously I did, and my original belief was not correct.  This ...   04-03-2006 07:18 am

Suspension > Front Coil Spring (17 replies - 16889 views)

Kurt, Perhaps you're right.  While I don't recall seeing indentations in the lower A-arms that seemed suitable for round-end spring seats, it was very hot on the two days I ...   04-03-2006 01:46 am

Suspension > Front Coil Spring (17 replies - 16889 views)

Since I wrote the article and generated the torques drawing, it's appropriate that you consider me responsible for their content, rather than Greg Fletcher.  However, if there's any ...   04-02-2006 05:53 pm

Ignition > Timing and ignition - maybe (23 replies - 13535 views)

I'm assuming from the exchange above that colin59's car still has its problem. The mechanical cam timing sounds correct, as does the stated static ignition timing.  And while ...   03-29-2006 12:41 am

Body & interior stuff > Metal Trim (4 replies - 4606 views)

If memory serves, each trim piece should have several threaded studs that protrude through the rear edges of the fender and rear body panel into the space ...   03-22-2006 04:20 pm

Carburetors > Need a new gas tank (13 replies - 11749 views)

It's my understanding that Delta hasn't supplied their stainless tank for quite a few years now.  My car has one, courtesy of some long-ago PO, ...   03-20-2006 10:01 pm

Miscellaneous > Dr. F's Jensen quandary (4 replies - 4763 views)

For a car that'll spend its days on the track, I'd think a bill of sale would be sufficient. For a street car, though, documents do ...   03-18-2006 01:51 am

Miscellaneous > New JH owner seeks guidance (22 replies - 17601 views)

Article sent via email. ...   03-17-2006 06:17 pm

Miscellaneous > JH Photo Gallery (5 replies - 5466 views)

A very impressive new face for the photo site.  There's more to look at every time I visit. ...   03-16-2006 10:39 pm

Engine & Transmission > oil pressure drop (20 replies - 17031 views)

Re the rotor end clearance, or end float: I will emphasize that one should not rely on an eyeball estimate, as a significant failure in either direction ...   03-16-2006 01:58 am

Engine & Transmission > oil pressure drop (20 replies - 17031 views)

Your coolant removal procedures sound adequate. The oil pump clearance specs are all in the shop manual, and I've repeated them below, with comments. Inner and outer ...   03-15-2006 03:44 pm

Miscellaneous > New JH owner seeks guidance (22 replies - 17601 views)

"If I understand Mark correctly, I can easily remove the top covers from my Stromberg carbs. I was wondering if this could be done without ...   03-14-2006 10:38 pm

Miscellaneous > New JH owner seeks guidance (22 replies - 17601 views)

Just looked at your photo and couldn't help noticing that the top covers on both of your carburetors are installed incorrectly.  See the attached photo ...   03-14-2006 04:54 am

Body & interior stuff > Seat Foam (9 replies - 9840 views)

That's a neat idea, though I'm not sure how well the leather would resist the elements in an automotive application. ...   03-09-2006 08:27 pm

Miscellaneous > New JH owner seeks guidance (22 replies - 17601 views)

Rory, When a car is at rest, the only way air will flow through its radiator is if it's pulled through by the engine fan.  There's a lot ...   03-09-2006 06:04 pm

Miscellaneous > New JH owner seeks guidance (22 replies - 17601 views)

smcmanus wrote: Here is the engine number  B73063422.  Does this mean anything to anyone?  Yes.  B means the engine originally came with Strombergs (A was for Del'lortos).  ...   03-09-2006 01:38 am

Miscellaneous > New JH owner seeks guidance (22 replies - 17601 views)

Delta Motorsports in Phoenix AZ is the primary supplier for all things Jensen in the US.  Their contact info is elsewhere on this site.  Give ...   03-08-2006 10:29 pm

Body & interior stuff > Rust Repair (8 replies - 8115 views)

IIRC the screws holding the stainless pieces at the bottom and rear of the door openings were originally chromed steel #4 self-tapping sheet metal screws with Pozidrive ...   03-08-2006 09:37 pm

Body & interior stuff > Seat Foam (9 replies - 9840 views)

The foam rubber seat bottom cushion is available from a supplier in the UK at about $100 per seat, plus shipping.  These are frequently auctioned via eBay.   Otherwise ...   03-06-2006 11:53 pm

Miscellaneous > What's in the trunk of your JH??? before a long trip (8 replies - 7167 views)

Really, I have to second Greg's comments.  With equivalent levels of maintenance, a JH is as reliable as any American car of the 1950s or ...   03-03-2006 05:57 pm

Body & interior stuff > Green light! (4 replies - 4756 views)

While Greg's explanation certainly is a charming one, Jim's explanation is closer to the truth.  In fact it is present to satisfy a US National ...   02-28-2006 03:07 am

Engine & Transmission > Jensen GT (3 replies - 4103 views)

Yes, there's a market, but the JH/GT world is quite a small one, as British car groups go, and because of that it's difficult to predict what ...   02-25-2006 09:30 pm

Miscellaneous > What's in the trunk of your JH??? before a long trip (8 replies - 7167 views)

As John mentioned, a working cell phone is the single most important item to have.  Next up is a high-limit major credit card.  To these, and ...   02-25-2006 03:48 pm

Engine & Transmission > Jensen GT (3 replies - 4103 views)

They were all built with 5-speed transmissions.  It's possible that somewhere along the way an owner may have swapped in a 4-speed for some reason. ...   02-25-2006 03:23 pm

Suspension > JH Steering Rack (13 replies - 11123 views)

I've seen photos of UK Vauxhalls of the period with what appears to be the same rack, and conventional JH wisdom says they were the source, ...   02-22-2006 04:28 pm


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