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320 postsShowing posts 281-320 of 320

Engine & Transmission > Valve Adjustment SNAFU (11 replies - 13815 views)

Lotus valve shims for Twin Cam and 9XX engines are the same.   And both are interchangeable with shims for the Triumph TR7 and older Jags ...   02-08-2006 01:23 am

Engine & Transmission > Valve Adjustment SNAFU (11 replies - 13815 views)

Okay...  so we aren't necessarily talking about negative numbers.   With the cam lobe pointing straight up relative to the tappet,  is there clearance?   Is the ...   02-08-2006 01:16 am

Engine & Transmission > Valve Adjustment SNAFU (11 replies - 13815 views)

It wouldn't hurt if you have access to the equipment.   If the results indicate everything is tight,  the valves are probably okay.   However,  if the ...   02-07-2006 03:16 am

Engine & Transmission > Valve Adjustment SNAFU (11 replies - 13815 views)

Yeah,  or that too...   ;-) Tim ...   02-06-2006 10:49 am

Engine & Transmission > Valve Adjustment SNAFU (11 replies - 13815 views)

Mitch, When the valves are ground & lapped,  a small amount of material is removed from the mating face.   As a result,  they end up moving a ...   02-06-2006 03:26 am

Carburetors > Has anyone tried SUs? (4 replies - 7071 views)

Jensen Healey wrote:   IIRC the development engines had fuel injection and put out 220 HP. Only the 904 & 906 race engines for the Lotus ...   12-23-2005 01:45 am

Carburetors > Has anyone tried SUs? (4 replies - 7071 views)

I don't think there's a significant advantage (if any) to switching from Zenith Stromberg carbs to SU's.   Functionally, the SU and Stromberg carbs are very ...   12-22-2005 09:29 pm

Engine & Transmission > 907 mounting brackets? (5 replies - 6422 views)

thurman wrote: Thanks Tim.  I have focused on JH parts because of the rear drive design of the JH.  The transmission mount for example, can't ...   12-11-2005 01:07 am

Engine & Transmission > 907 mounting brackets? (5 replies - 6422 views)

Thurman,   There's a lot of Lotus activity around DC and all over the east coast.   If you hook up with some J-H folk,  great.   But also ...   12-09-2005 01:31 am

Engine & Transmission > new photos of the Shark and its new engine (9 replies - 8304 views)

Regular foam like carpet padding isn't a good choice for under the tank since it's porous...  a sponge.    It will absorb and hold moisture against ...   12-01-2005 04:11 am

Engine & Transmission > crankshaft (3 replies - 4598 views)

Jason, Be sure to center the seals accurately.   Just sliding the seal & housing onto the journal and tightening the bolts isn't enough.   Either use the ...   11-19-2005 01:35 am

Engine & Transmission > crankshaft (3 replies - 4598 views)

jason fain wrote: (Snip)...  has never seen one with a machined looking groove near the rear seal.  The grove sits just on the inside of ...   11-19-2005 01:30 am

Engine & Transmission > VALVE ADJUSTMENT (3 replies - 5121 views)

BILLBEN wrote: THE VALVE JOB IS COMPLETE, BUT BEFORE I REASSEMBLE THE ENGINE, I'D LIKE TO CHECK/ ADJUST THE VALVES....WHAT'S THE BEST WAY TO DO ...   11-09-2005 12:20 am

Engine & Transmission > Section TDA, 1983-87 Lotus Turbo Esprit Manual (2 replies - 6211 views)

Mark, Yes.  (Snip)... Edit 5-31-2009 by Tim Engel No.   As it turns out, there's no difference between the J-H and Lotus versions of the cams and pulleys.   The ...   11-05-2005 02:39 am

Carburetors > DHLA 40 vs. 45 (26 replies - 37806 views)

Brett Gibson JH5 20497 wrote: ...as for the pump jet filter/spring, I was not talking about the main fuel pump with the large spring over ...   11-03-2005 11:17 am

Engine & Transmission > Section TDA, 1983-87 Lotus Turbo Esprit Manual (2 replies - 6211 views)

This probably amounts to waste of bandwidth by double-posting;  however,  I felt posting this info in the Engine & Transmission forum made more sense.   It ...   11-03-2005 03:46 am

Carburetors > DHLA 40 vs. 45 (26 replies - 37806 views)

Mark Rosenbaum wrote: The data in TDA.pdf is an enormously valuable supplement to the JH shop manual -- the ignition timing and cam timing areas, in particular, caught my attention...  (Snip)... My ...   11-03-2005 12:55 am

Carburetors > DHLA 40 vs. 45 (26 replies - 37806 views)

Judson Manning wrote: Apparantly both sets of carbs I got from DBE were Spec10 w/ Spec9 jetting, and the carbs on your cars are all ...   11-02-2005 02:19 am

Carburetors > DHLA 40 vs. 45 (26 replies - 37806 views)

Brett Gibson JH5 20497 wrote: Tim, how do you know which spec Dell's you have, mine are 40'E's, on a stock engine, would it show ...   11-02-2005 01:58 am

Carburetors > DHLA 40 vs. 45 (26 replies - 37806 views)

Judson Manning wrote: Tim was kind enough to post Spec10 & Spec11 for me last year on the Lotus Forum while I was jetting the 907/910 ...   11-01-2005 03:29 am

Carburetors > DHLA 40 vs. 45 (26 replies - 37806 views)

Judson Manning wrote: What Tim and I are at odds with is...  (Snip)...   Judson, I know,  just words,  and I really am tracking with you.   But "mutually ...   11-01-2005 01:09 am

Carburetors > DHLA 40 vs. 45 (26 replies - 37806 views)

Judson, I was quoting "Lotus" Dellorto set-up's.   Lotus numbered their carb set-ups (Stromberg & Dellorto intermingled) sequentially as set-up changed through the years and models.   Spec-1 ...   10-30-2005 12:53 am

Carburetors > DHLA 40 vs. 45 (26 replies - 37806 views)

Spec 5 is about right if you are running a near stock 907 with DHLA45's. Front ............................ E907E0789F Rear ............................. E907E0790W Tag Number Front ............................ 5295A Rear ............................. 5294P Carb Type ...   10-28-2005 03:52 am

Carburetors > DHLA 40 vs. 45 (26 replies - 37806 views)

andrewo wrote: I have noticed that 40s seem a lot cheaper than 45s. On other cars with Webers (similar design) I actually found that it ...   10-28-2005 03:39 am

Carburetors > carburetor synchronizer (5 replies - 10945 views)

johnhem wrote: Is anyone familiar with this synchronizer and would they recommend it or not? I read Frank Schwatz's post but would rather not deal ...   10-28-2005 03:04 am

Engine & Transmission > 907 engine in a fit car? (7 replies - 8166 views)

thurman wrote: On a topic more germane to the creators of this list, how hard/expensive is it to obtain parts for a Jensen Healey?  (Snip)...  ...   10-28-2005 02:37 am

Engine & Transmission > Header Gasket (5 replies - 5512 views)

Rory, Were you still running the stock-style of exhaust manifold to cylinder head gasket?   If so,  then the Lotus Esprit Turbo gaskets are a vast improvement.   ...   10-28-2005 02:10 am

Engine & Transmission > 907 engine in a fit car? (7 replies - 8166 views)

That's a space constraint. There is nothing inherent about the 907 that requires an offset. If the car you are building has room for the ...   10-13-2005 11:23 pm

Engine & Transmission > Hesitation (6 replies - 7076 views)

Mark, I believe the main reason for the vacuum retard had to do with reducing the spike in oxides of nitrogen that occurred on closed-throttle over-run.   Something ...   10-10-2005 11:32 pm

Engine & Transmission > stock cams vs. 107 vs. 104 (3 replies - 5491 views)

The 107 cams don't make huge horsepower,  but they do make a pretty dramatic improvement in low end torque.   The car's top speed (horsepower) won't ...   06-10-2005 08:27 pm

Engine & Transmission > 912 SE Engine (12 replies - 12439 views)

Paul, I don't know exactly where the 911 interferes with the Jensen-Healey,  but I would think all the Lotus 2.2 liter engines would have the same issues.   ...   05-31-2005 11:57 pm

Engine & Transmission > Lotus Water Pumps (4 replies - 9566 views)

I have a Word.doc containing information on Lotus water pumps and rebuilding. It's not written with Jensen-Healey in mind, but most of it applies.   Is ...   05-22-2005 05:33 am

Engine & Transmission > transmission oil (6 replies - 7682 views)

In the US,  Valvoline markets a line of transfer pumps designed to screw onto the threaded neck of a bottle.   They're plunger pumps similar to ...   05-17-2005 07:58 pm

Engine & Transmission > 2.2 Crank and parts for 907 (16 replies - 17584 views)

Judson Manning wrote: Tim, I got one of those cranks with the 1986 HCI engine I bought a few years ago.  That rear pilot bearing is ...   05-02-2005 08:18 pm

Engine & Transmission > Cam Gears - Got any available? (16 replies - 14834 views)

Mark Rosenbaum wrote: Judson, if the figures you're quoting for post-10480 cams are from the shop manual, General Specifications pg. 2, then it's my understanding ...   05-02-2005 08:01 pm

Engine & Transmission > Cam Gears - Got any available? (16 replies - 14834 views)

Judson Manning wrote: Tim, How about specs for the N/A Esprit 2.2?  My 107 cam specs differ from the 107 specs you listed, and I think ...   05-02-2005 07:03 pm

Engine & Transmission > Cam installation (4 replies - 7093 views)

Start be measureing and recording all the valve clearances. Removing and replacing the cams is pretty easy once the cam carrier is off the engine. Remove the ...   05-01-2005 09:03 pm

Engine & Transmission > Cam Gears - Got any available? (16 replies - 14834 views)

Lotus Cams Cam ID ..........  Duration........  Lift......  Overlap...  MOP C or 101 cam......  272° ........ .340" .....  52° ......  110° / Red dot D or 102 cam......  270° ...   05-01-2005 07:15 pm

Engine & Transmission > 2.2 Crank and parts for 907 (16 replies - 17584 views)

Dan Eiland wrote: I have read that Lotus used several versions of the 2.2 crank over the years, are some better than others for a ...   05-01-2005 06:26 pm

Engine & Transmission > Front and Rear main seals, timing gear removal (6 replies - 7992 views)

For both front and rear seals,  insert them into the housings from the outside inward.   The open gap in the seal (between rim and seal ...   05-01-2005 06:02 pm


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