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325 postsShowing posts 41-80 of 325

Engine & Transmission > Differential Oil-GL-1, GL-4 or GL-5? (10 replies - 2324 views)

Use a GL-5. It's specifically formulated for use with hypoid gears, such as those used in the final drive's crown wheel & pinion. ...   09-27-2017 09:12 pm

Brakes > JH BRAKE DRUMS (5 replies - 3083 views)

t4brew wrote: My guess is that they are only needed to keep the drum from moving around until the wheel and lug nuts are torqued on. ...   09-27-2017 08:30 pm

Miscellaneous > Where can I find original Passenger side courtesy light? (3 replies - 937 views)

NigelK wrote: They come up on eBay in Australia rarely and for extortionate prices.Yipes... AU$475 on eBay Oz!! That is a little on the ...   09-24-2017 07:54 pm

Engine & Transmission > Reversed cams effects (12 replies - 4254 views)

A full 4-stroke cycle involves two full revolutions of the crankshaft. If the crank is at TDC, and the cam pulley timing marks ...   09-14-2017 04:52 am

Engine & Transmission > Reversed cams effects (12 replies - 4254 views)

tonyhawker wrote: Offhand, are the valves specific to only the 907 engine and made of unobtanium or are there more generic replacements available?  I have the ...   09-13-2017 12:27 am

Engine & Transmission > Reversed cams effects (12 replies - 4254 views)

If you have read my previous post already, read it again. What made sense in the wee hours of the morning read a ...   09-11-2017 07:21 am

Engine & Transmission > Reversed cams effects (12 replies - 4254 views)

As Don mentioned, the stock cams are identical. Even the cam carriers can be interchanged between the intake and exhaust sides of the ...   09-11-2017 06:28 am

Brakes > Pressure Differential Warning Actuator (8 replies - 2217 views)

Dick Fickey wrote: Thanks for the help Tim. Will follow your instructions when I bleed the brakes. Just got the rebuilt PDWA but I have ...   08-30-2017 03:12 am

Brakes > Pressure Differential Warning Actuator (8 replies - 2217 views)

Dick, When you open one hydraulic circuit to bleed it, the PDWA's internal shuttle/ piston will move off to one side, closing the switch contacts in ...   08-30-2017 02:44 am

Cooling > Water Temperature Gauge Calibration (19 replies - 4374 views)

The JPEG compares the later Lotus 907 impeller with backward curved vanes (on the right), with the 910 impeller with the full-length, backward curved vanes. ...   08-22-2017 11:42 pm

Cooling > Water Temperature Gauge Calibration (19 replies - 4374 views)

DonBurns wrote: Thanks. Are 910 water pumps something that are available without a rebuildable 910 core?Sorry about being so slow getting back to you. It really helps ...   08-22-2017 02:35 pm

Cooling > Water Temperature Gauge Calibration (19 replies - 4374 views)

The engine needs to come up to normal operating temperture to run right, and to prevent moisture condensation build-up inside the engine. There ...   08-17-2017 07:08 pm

Engine & Transmission > Lotus 5 speed transmission (36 replies - 16647 views)

Interesting. How much does the W58's shifter need to be modified to fit properly in the JH? Is the excessive mfg ...   07-24-2017 08:19 pm

Engine & Transmission > Jensen Healey Specific - Eccentric Tensioner Hub (46 replies - 15488 views)

Rick, One of the blue belt's advantages is it's exceptional stability. Continue to check it's tension on a regular maintenance schedule, but once it's ...   07-24-2017 08:03 pm

Engine & Transmission > Jensen Healey Specific - Eccentric Tensioner Hub (46 replies - 15488 views)

Rick, What tension were you trying to achieve with your blue belt? Regards, Tim Engel ...   07-24-2017 05:37 am

Engine & Transmission > 907 Main Bearing Shells - Conversion to Run Chrysler 318 V8 Shells (7 replies - 2215 views)

Joachim, I've not talked with either of them myself. However, this subject started over on the LotusExcel forum, and the fellow needing the bearing ...   07-22-2017 02:49 am

Engine & Transmission > Auxiliary housing shaft circlip (4 replies - 1615 views)

Apply the Loctite to the pulley bore. Maybe just a very little bit on the shaft, wiping most of it back off... ...   07-21-2017 08:28 pm

Engine & Transmission > Auxiliary housing shaft circlip (4 replies - 1615 views)

Jim, The Auxiliary pulley is to be mounted with Loctite, and it should require the heat of a propane or MAPP gas torch to remove it. ...   07-21-2017 05:50 pm

Engine & Transmission > 907 Main Bearing Shells - Conversion to Run Chrysler 318 V8 Shells (7 replies - 2215 views)

Here's a few dimensional data-points for starters. Crankshaft Main Bearing Journals: CHRYSLER 318 V8 ................................. LOTUS 9XX Engines 2.4995 - 2.5005" -- Journal Dia ............... ...   07-21-2017 04:11 pm

Engine & Transmission > 907 Main Bearing Shells - Conversion to Run Chrysler 318 V8 Shells (7 replies - 2215 views)

Thanks for the lead... I'll check it out. Edit -- A friend who subscribes tGT40s.com is attempting to ping Ron for me; but to date, ...   07-21-2017 03:12 am

Engine & Transmission > 907 Main Bearing Shells - Conversion to Run Chrysler 318 V8 Shells (7 replies - 2215 views)

I'm not sure, but I believe Ron Earp was one of those who converted to Chrysler bearings. Is Ron still on this forum? ...   07-20-2017 05:05 pm

Engine & Transmission > 907 Main Bearing Shells - Conversion to Run Chrysler 318 V8 Shells (7 replies - 2215 views)

Many years ago, comments on this forum by JH racers who converted the 907 engine to run Chrysler 318 V8 main bearing shells. ...   07-20-2017 04:44 pm

Electrical & Instruments > Related or coincidence? (7 replies - 2002 views)

Pacer Technologies is known for their line of ZAP super glues, but they also make Rail Zip II. Electric model train guys use ...   07-18-2017 06:32 pm

Engine & Transmission > Lotus 5 speed transmission (36 replies - 16647 views)

Hi John, It'd be great if you would burn a copy for me. You're the one doing all the travelling, so when you're home ...   07-06-2017 04:48 am

Engine & Transmission > Lotus 5 speed transmission (36 replies - 16647 views)

Dan, Is that the article written by Ernie West of Dead Lake Motors? If so, I'd like to get my hands on a copy ...   07-02-2017 11:25 pm

Engine & Transmission > Oil Pressure too high (23 replies - 8788 views)

scottsmi wrote: On the subject of oil, I read your previous post on the viscosity and wonder what your opinion is of using zddp. I ...   06-21-2017 07:21 pm

Engine & Transmission > Oil Pressure too high (23 replies - 8788 views)

scottsmi wrote: Thanks Tim, I am interested in the extra document. I want to keep my JH as original as possible but dont like the oil ...   06-21-2017 05:44 pm

Engine & Transmission > Oil Pressure too high (23 replies - 8788 views)

The following is probably more than you want to know, but... Over the years, Lotus had three oil filters for the 9XX 4-cylinder. All ...   06-19-2017 04:47 am

Engine & Transmission > Oil Pressure too high (23 replies - 8788 views)

Did you replace the seal between the oil cooler sandwich plate and the auxiliary housing? It tends to get over-looked. Regards, Tim Engel ...   06-16-2017 06:10 am

Engine & Transmission > Oil Pressure too high (23 replies - 8788 views)

Please excuse the redundancy, but I just posted this photo in another thread on this same general subject. All the parts together make ...   06-15-2017 12:12 am

Engine & Transmission > Oil pump rebuild (46 replies - 30115 views)

For 'slow' oil pressure build-up on cold start, make certain this air bleed hole is clean, and not plugged with sludge. ...   06-14-2017 11:38 pm

Engine & Transmission > Oil pump rebuild (46 replies - 30115 views)

And another view, with the parts nested together. ...   06-14-2017 11:34 pm

Engine & Transmission > Oil pump rebuild (46 replies - 30115 views)

Here are the pressure relief valve's internal parts laid out. It's not my photo, but I don't recall where I got it. ...   06-14-2017 11:28 pm

Engine & Transmission > Oil pump rebuild (46 replies - 30115 views)

See the attached JPEG clipping from the JH Parts Manual. On the back end of the oil pump housing, next to the bore where the distributor ...   06-14-2017 11:22 pm

Engine & Transmission > Lotus 5 speed transmission (36 replies - 16647 views)

Just for the record, Lotus used three different 5-speed transmissions with the 907 & 912 engines. Any of which, when taken with it's ...   06-05-2017 05:13 pm

Projects > 19064 - autocross project car for SCCA's FSP class (42 replies - 18618 views)

I'm surprised fuel injection is such an open option. How are your cam's timed. The early J-H timing was 115 IN / 115 EX, ...   04-28-2017 04:03 pm

Projects > 19064 - autocross project car for SCCA's FSP class (42 replies - 18618 views)

Steve, What will fuel injection do to how the SCCA classes your car for autocross? If you had another stock head, would you install it just to ...   04-28-2017 02:35 am

VIN Database for Jensen Healey & Jensen GT > Jensen Healey & Jensen GT VIN Database (280 replies - 249491 views)

Aaron, +1 on the new belt. Who is putting it in? And I've been curious... who is the PO in Chicago? Regards, Tim Engel ...   04-13-2017 06:23 am

Engine & Transmission > cams, valve timing and ignition timing (106 replies - 51244 views)

If you want to play with cam timing, give 104 In / 110 Ex a try. But for that, you'll need to buy ...   04-11-2017 06:25 pm

Engine & Transmission > cams, valve timing and ignition timing (106 replies - 51244 views)

Does your car have to pass a strict emissions test. If so, it will have a better chance with 115 In / 115 ...   04-11-2017 05:17 am


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