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572 postsShowing posts 1-40 of 572

Miscellaneous > Pete Bahr (10 replies - 10757 views)

Michael, That's a heck of a photo album. Thanks for sharing. YeloDog was/ is a special car. Unfortunately, it got crunched in a ...   11-12-2023 05:37 am

Engine & Transmission > 912 motor (5 replies - 1576 views)

Oh, I'm sure there will be a number of little things to address, but this is the big one. Sure, I can send the photo to ...   08-04-2023 03:51 am

Engine & Transmission > 912 motor (5 replies - 1576 views)

I've tried multiple times to post a photo of the notch, but the system won't allow it. Is that a new 'thing'... no ...   07-27-2023 04:11 pm

Engine & Transmission > 912 motor (5 replies - 1576 views)

The 912 uses the same 'block' as the 907, but the lower Main Bearing Panel (MBP) is wider in order to increase the overall stiffness ...   07-27-2023 03:57 pm

Carburetors > Dellorto Cough (32 replies - 38656 views)

Be careful about using an O2 sensor/ AF meter to tune carbs. Those tools will lead you to a chemist's version of perfect ...   05-11-2023 07:09 pm

Engine & Transmission > Jensen GT Engine (1 reply - 1616 views)

A little late, but... A Lotus 2.0 Litre 907 will bolt into both a Jensen GT and a Jensen-Healey. The later Lotus 2.2 Litre 912LC & ...   04-22-2023 04:14 am

Engine & Transmission > Thoughts on timing marks (9 replies - 2370 views)

JH12947 wrote: No. I pulled the tags had a closer look. > They are quite definitely R5325 and R5326. No A or P. > Perhaps "R"econditioned? R means ...   03-12-2023 05:47 am

Engine & Transmission > Thoughts on timing marks (9 replies - 2370 views)

5325 P, and 5326A ?? If so, then those carbs were originally for the Sunbeam-Talbot Lotus rally cars... the 'street' homologation version. The engine ...   03-11-2023 04:56 am

Engine & Transmission > Thoughts on timing marks (9 replies - 2370 views)

JH12947 wrote: (Snip)... The car has 45 DHLAs on it and in looking at the recommendations in the forum it seems over jetted on the cold ...   03-11-2023 12:00 am

Carburetors > Fuel needles (10 replies - 10023 views)

After trying the usual suspects (JH & Lotus parts vendors), I believe the best Zenith-Stromberg resource in the USA is Joe Curto, aka British Superior, ...   03-10-2023 06:25 am

Engine & Transmission > Thoughts on timing marks (9 replies - 2370 views)

With the stock, non-adjustable cam pulleys, you can only index the pulley on the timing belt in whole tooth pitch increments. 1 Tooth Pitch = 1 ...   03-10-2023 06:04 am

Engine & Transmission > 2.2 conrods (2 replies - 1373 views)

Lotus 2.0 and 2.2 rods are the same... it's the pistons that are different. If nothing else is done, the 2.2 crank's longer stroke will push ...   01-13-2023 03:37 am

Miscellaneous > New Member (2 replies - 1866 views)

1) The tires are clearly not the factory size. Do you intend to stick with them, or drop back to something closer ...   07-05-2022 06:47 pm

Body & interior stuff > So this bracket is just hanging out here.... (6 replies - 4140 views)

Ed Weber wrote: Tim, did you modify the bracket to take a different damper? No, I didn't make one at all. The photo I posted ...   05-23-2022 06:59 am

Engine & Transmission > Frequency Range/Measurement for Warned Up Blue Timing Belts? (2 replies - 2020 views)

But the black belt tension does not apply to the Blue belt. The Blue belt is thicker, stiffer, heavier... all things that will ...   05-22-2022 01:47 am

Body & interior stuff > So this bracket is just hanging out here.... (6 replies - 4140 views)

Like this... ...   05-22-2022 01:43 am

Engine & Transmission > Rod and piston balancing - what is enough? (2 replies - 1872 views)

Since you're using custom crank, pistons & rods, contact the manufacturer of the parts you're using for their recommendations. Neither Jensen nor Lotus ...   05-10-2022 10:18 pm

Engine & Transmission > Early MkI Cam Belt Tensioner Adjustment Tool Substitute (2 replies - 2219 views)

Interesting. I always like more legitimate tool options. Another option is a crows-foot, along with an extension and ratchet handle. Most automotive/ ...   03-31-2022 11:29 pm

Carburetors > correct manifold for 40 mm Dellortos? (12 replies - 10054 views)

Of the JH OEM spec Dellortos, I'd recommend the later 40E... regradless of how you wish to jet it. Evolution brought improvement, and ...   03-08-2022 08:44 pm

Carburetors > correct manifold for 40 mm Dellortos? (12 replies - 10054 views)

I wasn't objecting to Dellortos... I much prefer Dellortos over Webers or Strombergs. There are several variations on the 'DHLA 45' theme, designated by a alpha ...   03-01-2022 08:59 pm

Carburetors > correct manifold for 40 mm Dellortos? (12 replies - 10054 views)

Try contacting Lotusbits, or SJ Sportscars, both in the UK. http://www.lotusbits.com/ https://www.sjsportscars.com/ The Dellorto 45M wouldn't be the best choice. They are fully sealed, and intended ...   03-01-2022 05:47 pm

Carburetors > Dellorto Cough (32 replies - 38656 views)

Paul, Back in message #12, you wrote that the fuel pressure was 6 psi. Is that still true, or have you installed an inline ...   01-25-2022 08:01 pm

Ignition > Coil recommendations? (6 replies - 3296 views)

The Pertronix 'basic' Ignitor can't handle the high current draw of a coil with low internal resistance. The old/early ones with magnetic switching ...   01-09-2022 04:33 am

Cooling > Water pump pulley position (4 replies - 2787 views)

The pump pulley's V-belt groove must be in the plane of the crankshaft pulley's V-belt groove. There's no built-in step that correctly positions ...   12-31-2021 09:20 pm

Carburetors > Dellorto Cough (32 replies - 38656 views)

Paul, Since the beginning of this thread, you have never mentioned which Idle Air Corrector (aka, Idle Jet Holder) is installed. You have listed ...   12-20-2021 10:27 pm

Carburetors > Dellorto Cough (32 replies - 38656 views)

Paulreese1 wrote: By adjusting the idle mixture to max rich was able to drive to a nearby event on Saturday although with a lot of misfiring. ...   11-28-2021 04:36 am

Carburetors > Dellorto Cough (32 replies - 38656 views)

The fuel pressure IS high. Install an inline fuel pressure regulator as close to the carb inlets as practical, and set it to ...   11-28-2021 04:02 am

Carburetors > Dellorto Cough (32 replies - 38656 views)

Each carb should have an aluminum tag under one of the screws that secures the large top cover. What are the numbers that are ...   11-27-2021 05:22 am

Carburetors > Dellorto Cough (32 replies - 38656 views)

Disappointment is a function of expectations. Some JH owners are running DHLA 40 carbs with chokes as small as 32mm. There ...   11-27-2021 05:19 am

Carburetors > Dellorto Cough (32 replies - 38656 views)

Paul, Any progress with your Dellortos? Tim ...   11-25-2021 01:29 pm

Carburetors > Dellorto Cough (32 replies - 38656 views)

Paulreese1 wrote: (snip)... #3 is firing so can't be floats. A little off track, but... Don't be too quick to dismiss the floats. ...   11-19-2021 06:17 pm

Carburetors > Dellorto Cough (32 replies - 38656 views)

You say the Carbtune doesn't read the #4 cylincer. Try swapping the Carbtune's hoses between the two fittings on the rear carb. If the ...   11-19-2021 04:07 pm

Carburetors > Dellorto Cough (32 replies - 38656 views)

Paul, Which DHLA carbs (40, 40E, 45 or 45E ?), what choke size, and how are they jetted? Are the carbs mounted to the manifold with proper ...   11-18-2021 05:49 pm

Engine & Transmission > Head removal? (19 replies - 14106 views)

If anyone had trouble using the two links in Msg #18 above (something to do with 'Security Changes'), try them again now. I've ...   11-17-2021 10:14 pm

Engine & Transmission > Oil pan gasket or seal replacement (10 replies - 5191 views)

I'll pass on the question about "Is there enough room". But I will strongly recommend that you not use an RTV silicone sealant. When ...   11-07-2021 05:34 am

Miscellaneous > What to Look For and Look Out For in an Early 1973 MkI? (4 replies - 2935 views)

Mark, For either the early Mk-I, or the later Mk-II, one thing is for sure... they're now all 'old'. How good or bad an ...   11-01-2021 07:51 pm

Engine & Transmission > T-Belt Eccentric Tensioner - Hex Size on Hub Drive. (7 replies - 4568 views)

Oops... screwed up. Would a moderator please delete this blank message. ...   10-01-2021 04:30 am

Engine & Transmission > T-Belt Eccentric Tensioner - Hex Size on Hub Drive. (7 replies - 4568 views)

browndog9 wrote: How do you procure said device ? Garry Kemp (Kemp High Performance Engines) is a Lotus specialist, and has an eBay store. You ...   10-01-2021 04:30 am

Engine & Transmission > T-Belt Eccentric Tensioner - Hex Size on Hub Drive. (7 replies - 4568 views)

Bruce, I'm not sure how many there are, I've just noticed an evolution in the tensioner eccentrics. Like, everytime a different front seal ...   10-01-2021 04:08 am

Engine & Transmission > T-Belt Eccentric Tensioner - Hex Size on Hub Drive. (7 replies - 4568 views)

The timing belt eccentric tensioner hub's hex drive size went through a series of evolutionary changes. What hex sizes were used when... or ...   09-27-2021 10:24 pm


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