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311 postsShowing posts 201-240 of 311

Engine & Transmission > renovated engine burning oil (46 replies - 18940 views)

Barthol wrote: (Snip)... Using a dealer gauge shows me a clearance of 0,75 mm between the liner and the piston again with the piston in the ...   03-29-2015 10:11 pm

Engine & Transmission > renovated engine burning oil (46 replies - 18940 views)

Illustrations end up pretty lo-res by the time they're uploaded to JHPS. You can download clearer versions from my Dropbox account, here: https://www.dropbox.com/sh/kwl3ckub3in3wrm/AAA3CRJImDKvpslh-ySyQ_sza?dl=0 They're not ...   03-23-2015 09:49 pm

Engine & Transmission > renovated engine burning oil (46 replies - 18940 views)

Review message #21. I've substituted a different JPEG attachment which illustrates a typical T-belt snubber (Aux Pulley location), the short spacers used with ...   03-23-2015 09:27 pm

Engine & Transmission > renovated engine burning oil (46 replies - 18940 views)

Notice the front main seal housing on the left is for use with the early eccentric tensioner, and is similar to the J-H unit. The later ...   03-23-2015 07:21 pm

Engine & Transmission > renovated engine burning oil (46 replies - 18940 views)

Here's an illustration showing the A/C compressor mounting brackets. Note the two welded-in bosses surrounding the bolt holes in the upper right of ...   03-23-2015 05:21 pm

Engine & Transmission > renovated engine burning oil (46 replies - 18940 views)

Barthol wrote: (Snip)... I have a semi automatic tightener but I cannot find out how to mount it. It looks like I am missing threaded ...   03-22-2015 10:15 pm

Engine & Transmission > renovated engine burning oil (46 replies - 18940 views)

Barthol wrote: (Snip)... I need to sort an issue with the belt tightening wheel . The bolt is pulling a little to the left when I ...   03-22-2015 09:48 pm

Engine & Transmission > renovated engine burning oil (46 replies - 18940 views)

Barthol wrote: If I pull the engine out again and need to install my old engine I need to sort an issue with the belt tightening ...   03-22-2015 08:48 pm

Engine & Transmission > renovated engine burning oil (46 replies - 18940 views)

Barthol wrote: I have no idea on how the bottom end is built. It was done from the Guy in Uk from who I bought ...   03-22-2015 08:40 pm

Engine & Transmission > renovated engine burning oil (46 replies - 18940 views)

Good, they're more fun above 4500 rpm anyway. The 104/107 cam combination is the same as was used in the 912 HC. I've not ...   03-22-2015 06:01 am

Engine & Transmission > renovated engine burning oil (46 replies - 18940 views)

The 907 is not supposed to have valve guide seals. The engine is designed for high rpm operation, and that requires adequate lubrication ...   03-22-2015 05:43 am

Ignition > Static Timing Questions (9 replies - 5588 views)

user=1922]mcguan.2 wrote:I do not know if I have the petronix ignition. How can I tell?.Remove the distributor cap and look inside. If ...   01-26-2015 03:29 am

Carburetors > One more Jetting Question (4 replies - 3618 views)

Barthol wrote:To match the single carb barrels i have to open the air correction screw on the stronger barrel 5-6 turns , and this ...   01-26-2015 02:48 am

Ignition > Static Timing Questions (9 replies - 5588 views)

Mark Rosenbaum wrote about using a multi-meter. That will work, but I prefer to use a continuity light. The light only ...   01-21-2015 05:28 pm

Ignition > Static Timing Questions (9 replies - 5588 views)

Does the distributor still have the original breaker points, or has an electronic ignition system (like Pertronix) been installed? Just considering other things ...   01-21-2015 05:19 pm

Engine & Transmission > 907 Front Main Seal Centering Tool (2 replies - 2190 views)

I wanted to ask you first so I didn't step on any toes if the JHPS club store carried them. The Lotus OEM front seal tool ...   11-07-2014 06:53 pm

Engine & Transmission > 907 Front Main Seal Centering Tool (2 replies - 2190 views)

Greg, Does the JHPS store carry the 907 seal centering tools? Tim ...   11-06-2014 07:00 pm

Carburetors > Velocity Stacks (16 replies - 14239 views)

The Elite-Eclat airbox used to be available through Lotusbits in the UK. However, I talked with Mike Taylor a while ago, and he ...   10-06-2014 12:18 am

Carburetors > Velocity Stacks (16 replies - 14239 views)

Shorter air horns to optimize higher rpm performance, Longer air horns to tune for low rpm performance. Given the range of available air horn lengths, and the ...   10-04-2014 08:13 pm

Electrical & Instruments > GT Rear Washer Pump Wanted (3 replies - 4351 views)

Check out Europa Specialist Spares. They stock a lot of brightwork, mirrors, lights... and windscreen washers... as used on many vintage British cars. Website: http://www.europaspares.com/ Washer ...   10-04-2014 07:42 pm

Ignition > Reinstalling the Lucas 25D distributor (4 replies - 4341 views)

For removal, most people loosen the clamp and pull the distributor out, leaving the clamp attached to the oil pump housing. If that's ...   09-10-2014 12:59 am

Carburetors > Webers or ? (23 replies - 16658 views)

Jay, Nice to meet you and your Jensen-Healey face-to-face this morning A 20W-50 oil is recommended. The 907's lubrication system is designed for relatively low ...   09-09-2014 08:32 pm

Carburetors > Webers or ? (23 replies - 16658 views)

The Weber Factory Settings for a 40DCOE-2, plus a couple other 40DCOE set-ups. All that really doesn't mean anything for your 907. Model ...   09-08-2014 11:46 pm

Carburetors > Webers or ? (23 replies - 16658 views)

tallyhoe wrote: (Snip)... This car has an oil cooler installed which makes removing the filter an act of God needed to accomplish. Is there a ...   09-02-2014 04:17 am

Carburetors > Webers or ? (23 replies - 16658 views)

tallyhoe wrote: I am a new owner of a JH so please be patient. I am looking for direction on the what is the best ...   08-22-2014 03:36 am

Carburetors > Webers or ? (23 replies - 16658 views)

First, do you know when the timing belt was last replaced? If not, replace it now before putting the car into general service. ...   08-22-2014 02:52 am

Carburetors > Webers or ? (23 replies - 16658 views)

tallyhoe wrote: Thanks again. USA. Minnesota.Where in Minnesota. I'm in Wayzata... west suburb of Minneapolis. ...   08-21-2014 11:36 pm

Ignition > Ignition sprocket timing mark (4 replies - 4254 views)

srq2002 wrote: I'm reinstalling the timing belt and concerned about the setting of the ignition pulley. Can anyone tell me if this diagram shows the mark ...   08-12-2014 01:49 am

Engine & Transmission > Puzzled by mist coming from Stromberg intakes (5 replies - 3630 views)

srq2002 wrote: While under the bonnet adjusting the Strombergs I revved the engine and saw what appeared to be a light white mist coming OUT of ...   08-01-2014 06:08 pm

Engine & Transmission > Mk 1 timing belt tensioner adjusting wrench (3 replies - 2758 views)

If you can't score a J-H OEM tool, then check with your local bicycle repair shop. Ask to see their selection of ...   07-17-2014 08:00 pm

VIN Database for Jensen Healey & Jensen GT > VIN (3 replies - 4172 views)

The engine number format above is Lotus' format for the 907, and correct for Kim's spare engine. Jensen-Healey engine numbers have their own ...   07-11-2014 03:38 am

Projects > The Red Fox (15 replies - 11375 views)

Jensen Healey wrote: Has anyone seen these pistons? This is a 2.0 bored .030 over with what appear to be forged pistons. I'm wishing and hoping ...   07-06-2014 05:08 pm

Engine & Transmission > Latest/Greatest Cam Drives ? (13 replies - 6689 views)

The stock J-H/ Lotus/ Gates T188 are 3/8" pitch Imperial belts... if that's what you're asking. ...   06-30-2014 03:44 pm

Engine & Transmission > Latest/Greatest Cam Drives ? (13 replies - 6689 views)

roverman wrote: What is the "wildest" cam spec's, heard of, for a racing 907 ?  Thanks, roverman.There are a lot of aftermarket cam grinders offering street, ...   06-19-2014 04:41 pm

Engine & Transmission > Late Engine Rear Crankshaft Seal (7 replies - 4267 views)

The important dimension is that the seal must be recessed 2.5mm (0.100 inch) from the inside machined face of the seal housing. How ...   06-19-2014 03:18 pm

Engine & Transmission > Worn Cam Shaft Timing wheels ? (22 replies - 14015 views)

Barthol wrote: As you can see the belt now moved towards the engine and is flush with the rear of the pulleys. Is this normal, or is ...   05-28-2014 07:42 pm

Engine & Transmission > Worn Cam Shaft Timing wheels ? (22 replies - 14015 views)

pbahr wrote: Is the tension the same for the rectangular and the later Lotus half-moon belts?Pete, Sorry about keeping you waiting... I'm not a regular here. Short answer: ...   05-19-2014 11:55 pm

Engine & Transmission > Worn Cam Shaft Timing wheels ? (22 replies - 14015 views)

Kim, The pulleys in your photo are worn and should be replaced. A timing belt that's too tight might aggrevate the situation, but it's not the primary ...   05-04-2014 04:25 pm

Engine & Transmission > 912 SE Engine (12 replies - 11877 views)

Pete, I'm glad you found it helpful. However, I just edited it, adding some info about intake port sizes in the various heads. ...   04-12-2014 07:03 pm

Engine & Transmission > 912 SE Engine (12 replies - 11877 views)

Schorse wrote: (Snip)... I have the possibility to get a 912 hybrid engine. It has iron liners and is believed to have a HC head. Is ...   04-11-2014 04:57 am


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