free hit
counters
Ian's S4s refurb - Page 78 - Esprit 'Project & Restoration' Room - The Lotus Forums Jump to content


Recommended Posts

5 hours ago, Gjk said:

 Is there a similar head gasket variation available for the S4s?...   just a thought...

 I found the Goetze to be the thickest of the three gaskets I've sampled.

 

 

Link to post
Share on other sites

Upgrade today to remove Google ads and support TLF.
  • Replies 2.1k
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

We finished off the wiring for the new heater solenoid, and a big thanks to @swindon_alan for his tracking skills in locating a suitable on/off switch. A wrap of insulating tape, was sufficient to pac

Hoisted the engine up, flywheel and clutch bolted on. The usual problems with lining up, but I finally got the gearbox mated to the engine, and lowered into position. The wife directed the pre and pos

Right, the winter 2017 refurb thread is now open for business. First up, gearbox removal. Despite having taken good care, the new rear crank seal I fitted started to leak. In fact it leaked more

Posted Images

There is a  head gasket Gary Kemp supplies that is circa .020'' thinner than the Goetze gasket.  This is more in line with the original preferred first build gasket thickness..    

Link to post
Share on other sites

Finally got the cylinder liners out, and set the wife to work stripping the old wrinkle finish paint off the castings with her new strip gel. 

I've degreased all the last bits so they’re not dripping oil everywhere, and the vapour blasting guy is coming round to give me a quote next week. The carbon on the piston crowns took a bit of elbow grease, but they're all clean now.

Garry Kemp is out of stock of some parts, but I’m hoping it’s not going to hold me up too much. I’ll fit whichever gasket he recommends and supplies.

 

  • Like 1

Margate Exotics.

Link to post
Share on other sites
2 hours ago, Chillidoggy said:

and set the wife to work stripping the old wrinkle finish paint off the castings with her new strip gel.

I dread to think what you were doing whilst all this was going on....thank goodness I can't picture this, some things just can't be unseen😁

  • Haha 1
Link to post
Share on other sites
14 hours ago, CHANGES said:

Never heard them called castings before ,   must be a down south thing , we just call them ********s up here .. 

That’s because us southerners are well posh, innit.

  • Like 1

Margate Exotics.

Link to post
Share on other sites

The bottom plate of the oil pump pick-up suction strainer fell off in my hand this afternoon. Looks like the factory glued, or resin-bonded, the strainer gauze in to the top plate, then did the same for the bottom. Which is fine as long as it stays there, but this one didn't. I suspect that if my engine has suffered like this, then it's highly likely there'll be others, too. I'm now mulling a fix which has to be a more permanent solution to the crappy Lotus idea.

Still, I suppose it's better to find it when the engine's in bits than have it fall off in the sump when it's back together.

Margate Exotics.

Link to post
Share on other sites

You can buy them from s and J or do what I did. Use JB weld, its better than the original resin. I have now taken the engine apart and the strainer is perfect.

Link to post
Share on other sites
  • Gold FFM
13 hours ago, Chillidoggy said:

 I'm now mulling a fix which has to be a more permanent solution to the crappy Lotus idea.

Still, I suppose it's better to find it when the engine's in bits than have it fall off in the sump when it's back together.

If it stayed in place for 25+ years, I'd say the fix was well within design spec. Do you think it would have worked loose soon if you didn't take the engine apart? Sure glad you did find it in time!

Filip

I have made many mistakes in my life. Buying a multiple Lotus is not one of them.

 

Link to post
Share on other sites

Having done some Internet legwork, and received a message from Dave Lisle, mine isn't the only strainer to have failed. Whilst mine has indeed stayed in place for 25 years, the next bump in the road could have caused it to fall off, because as I said, it fell off in my hand without any real pressure. To secure a critical engine part like this in in my opinion is not good engineering practice. It should have something positive to secure it as well. Moving on, Dave's suggested a repair method which I like the look of, so I'll be cleaning off all the old resin/glue ready for the fix.

The wife is finding that despite the super-duper paint strip gel from Frosts, the red wrinkle is proving to be a lot more difficult to remove than first thought. She's getting there, but it's taking far more applications than expected. The red paint looks to be original finish, except the plenum nozzle, which has red/yellow/red on it. Weird. The next challenge is removing the alloy Lotus name plate from the charge cooler. I haven't had a go as yet, but I'm thinking of using an old guitar string like a cheese wire if it doesn't want to play ball.

I'm in parts cleaning and measuring mode now. I think I can reuse the pistons, but won't know until I've checked them. If so, it'll save me a few hundred quid. I'm hoping to hear about the crank next week, again I think it can be polished and reused with the standard sized bearings.

Margate Exotics.

Link to post
Share on other sites

Hopefully then, the pistons will be in tolerance (obviously without any signs of scoring on the flanks) so you’ll just need new piston rings. Is it a “done thing” to hone the liner to aid the bedding in of the new rings, or am I being old fashioned?

It’s only metal, it cannot win!

Link to post
Share on other sites

I only say “old fashioned” as I used to run a 200 bhp escort rs turbo when I was a youth, many, many years ago!....

It’s only metal, it cannot win!

Link to post
Share on other sites

Hopefully the crank will just need a polish like you say and it can all go back together with standard main and big end shells. As it seams to be normal for the one upper shell to wear because of the belt drives I hope this will be a trouble free rebuild but, for the sake of belt and braces I would do a compression check when everything was back together before putting the spark plugs back in. I just like to leave NOTHING to chance! 
Think I should change my user name to MrOTT!

It’s only metal, it cannot win!

Link to post
Share on other sites

Out of curiosity, why are you going with cast iron liners rather than nickel silicon carbide coated aluminium liners? The grey cast iron liners typically wear a little over twice the rate of the coated liners.

Link to post
Share on other sites
1 minute ago, sailorbob said:

Out of curiosity, why are you going with cast iron liners rather than nickel silicon carbide coated aluminium liners? The grey cast iron liners typically wear a little over twice the rate of the coated liners.

Recommendation from Garry Kemp, plus the original liners are either NLA, or seriously expensive if you can find a set.

Margate Exotics.

Link to post
Share on other sites

Just checked Connaught’s website, bloody good pedigree! I fully understand your trust.
 

maybe all the V8 owners could squeeze in a Ford DFV !  :sofa:

It’s only metal, it cannot win!

Link to post
Share on other sites
2 hours ago, Gjk said:

maybe all the V8 owners could squeeze in a Ford DFV !  :sofa:

Maybe we already have..

 

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.




×
×
  • Create New...