Judson Manning wrote: The 104^ spacing isn't as critical on the 104 cams since they have the same overlap as the stock JH cam.  You ...   04-26-2006 03:19 am

John, Pete's Yellow Dog photo #2 shows the type of Lotus airbox I mentioned to you.   The inlet neck points forward and the flex-duct goes to ...   04-23-2006 03:19 am

True,  grinding/ lapping the valves will result in them receding into the head,  getting closer to the cam, and closing up the clearances.   Proper clearances will ...   04-14-2006 12:51 am

Bill. Was nothing else done?...  just a valve job?   A good compression engine became a no compression engine after nothing but a valve job? To do a ...   04-13-2006 02:43 am

Paul Koehler wrote: Are DHLA-45's  and airbox from the 2 breeds of Lotus you mentioned,  easily available in your local? Do you get from a bone ...   04-12-2006 03:12 am

Paul Koehler wrote: An inquire for those that have been there. If we condiser a stock JH with Z/S carbs and ~140HP  as a starting ...   04-09-2006 07:45 pm

I've seen Madera replacement dashes in Lotus Elans and Europas.   The finished product was gorgeous. However, I have no idea how perfect the fit was out ...   04-08-2006 04:05 pm

Jay, The outer sheath should be long enough to reach the carbs without creating any kinks or sharp transitions do to stretching.   Kinks bind.   Smooth transitions operate ...   04-08-2006 03:59 pm

colinw59 wrote: I'll trying gapping the plugs to 0.035"- 0.045" Colin, It takes a higher voltage spark to jump a larger gap.   The appropriate gap for the ...   03-29-2006 11:03 pm

colinw59 wrote: Hi Rory        I thought of that, so I checked it. With #1 at TDC and the cam sprockets lining up, the rotor is pointing ...   03-29-2006 02:30 am

Mark Rosenbaum wrote: 1.  Examine the timing belt for damage.  Some wear is OK but if the belt is frayed, cut, or teeth worn, replace ...   03-11-2006 07:02 pm

There is a special tool for centering the front seal during installation (and another for the rear seal).   It takes all the guess work out ...   03-11-2006 12:39 am

Rex Craft wrote: 1)  (Snip)... The seal looked fine but I’m not for sure about the oil thrower.  One of the tabs on the oil thrower ...   02-15-2006 02:53 am

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

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

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

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

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

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

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

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

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

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

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

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

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

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 ...   11-05-2005 02:39 am

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

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

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

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

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

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

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

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

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

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

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

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

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