Fuego Turbo / gordini CAM FOLLOWERS URGENT

Hi all , can anyone tell me where i might get some cam followers / tappets for my fuego turbo engine ?? i think they are the same as the 843 / 807 engines . i need 2 , either new or good usable ones , many thanks antony 07976 837634 / r17ant@orange.net

[Alpineandy]

If they're R16/R12G then Salv Sacco may have some.
Could try some of the A110/A310-1600 guys.
Or
Meca Parts
Simon Auto
Colombo
GBS.

thanks Andy , have tried Renault uk and France and Mecaparts , not listed at all . i know Salv Salco used to live local to me in Wolverhampton ? but have no contact details . will do a google search for the other companys you have listed , many thanks indeed . Antony

thanks Andy , have tried Renault uk and France and Mecaparts , not listed at all . i know Salv Salco used to live local to me in Wolverhampton ? but have no contact details . will do a google search for the other companys you have listed , many thanks indeed . Antony

salv is still in Penn

[Alpineandy]

Mecaparts , not listed at all

Send Mecaparts an email. They may be isted for something else (12G???).

I don't know if these will do
230584323341

http://www.ebay.co.uk/itm/Renault-16-17 ... 35afe58d0d

Greetings from across the pond!

I am building an 843 crossflow engine for my Lotus Europa S2 and have a question about regrinding tappets.

My existing tappets are slightly worn and apparantly new one are unavailable.

The machine shop, very familiar with rebuilding Detroit iron but completely unfamiliar with 40 year old Renault engines, mentioned that tappets have a curviture in them and are not ground flat; however, I have read that Renault tappets (and other older European tappets) are reground flat.
Obviously, a tappet with a curviture requires that the tappet be prevented from rotating in its bore. When I disassembled the engine some time ago I recall no such provision.

My question for the forum is this: are the 843 tappets (and likely other Renault engines as well), reground flat?

Thanks in advance, and congratulations on a wonderful Olympics!

Regards,

:D Hi all , can anyone tell me where i might get some cam followers / tappets for my fuego turbo engine ?? i think they are the same as the 843 / 807 engines . i need 2 , either new or good usable ones , many thanks antony 07976 837634 / r17ant@orange.net

Antony, is this the 2.2 ltr engine? If not, does it share the same hardware in general? I think your rocker arms are cast right? If so I have some and you can have them

Greetings from across the pond!

I am building an 843 crossflow engine for my Lotus Europa S2 and have a question about regrinding tappets.

My existing tappets are slightly worn and apparantly new one are unavailable.

The machine shop, very familiar with rebuilding Detroit iron but completely unfamiliar with 40 year old Renault engines, mentioned that tappets have a curviture in them and are not ground flat; however, I have read that Renault tappets (and other older European tappets) are reground flat.
Obviously, a tappet with a curviture requires that the tappet be prevented from rotating in its bore. When I disassembled the engine some time ago I recall no such provision.

My question for the forum is this: are the 843 tappets (and likely other Renault engines as well), reground flat?

Thanks in advance, and congratulations on a wonderful Olympics!

Regards,

Hi there, I wouldn't advise it actually. The slight angle is to encourage the lifter to turn and even wear, not prevent it from turning. However, your mitigation is modern fully synthetic oil, however, given the choice and given the cam is ground to match the follower profile (as true flat will likely increase point loading), I would try and stay OE if at all possible.

Martin

Martin,

Thank you for your reply.

OE doesn’t seem to be an option since I haven’t found a source for new ones. To make matters more complicated, I’m not certain the origin of the camshaft I am using, but it did not come from my 843 engine. It’s from a fellow Lotus owner in Canada.

Since I am a relative novice at this, I ask that you clarify one point: when you write “…the slight angle is to encourage….” Having no prior experience with this, I take it that the lifter is still ground flat, but at an angle to the centerline of the bore…in other words, not “normal” to the centerline. Did I misunderstand this? The local machinist told me that “Detroit iron” lifters are ground to a “convex” shape, but didn’t explain why. He also said one needs a particular machine to perform this operation which he didn’t have. And apparently no other local automotive machine shops have this special machine.

Perhaps I should send the cam and the followers to a camshaft specialist to regrind the followers. I would appreciate your opinion on this.

Since the followers are subject to wear one would think that new ones are available, like other engine parts, but I have been unable to locate any.

Thanks again for your advice.

Sorry for the late reply, correct, convex in shape. That was the taper I was referring, but convex is a much better description.

Did you manage to get sorted out?

The sorting our process is still, um, in the "conceptual" stage.

I have been searching, without success, for a complete set of new lifters. apparantly there are none to be had in the entire world, a condition which hardly seems likely given the size of the world, and that lifters are subject to wear and therefore may need replacing at some point in an engine's life.

In fact, just yesterday I sent 16 lifters from two engines to a shop in the US which has the highest reputation, hoping that they can breathe new life into at least eight of them. I'll let you know the verdict.

I am an old enough fart to recall the 1970's fuel crisis in the US (was it worldwide?). One of the suppositions at the time was that people were driving around with their fuel tanks mostly full out of fear that there would be none available when they needed it, and that most of the problem would go away if only perople reverted back to normal and would buy fuel when their tanks got closer to empty. So I wonder if there are folks out there who might be hoarding the things and may not really need them...I know of one such set that a fellow has, "just in case".

Anyway, for these lifter, "convex" is the way they are supposed to be reground, and I should know within a week the sort of shape they are in.

Thanks for your answer,

Steve

[Alpineandy]

Sorry to bang on but I'm gob-smacked that none of the following companies have these available'
http://www.mecaparts.com/index.php
http://www.gbsalpine.com/english.html
http://www.colombo-france.fr/
http://www.simon-auto.de/
http://www.premiumorange.com/v.e.c.raci ... &Itemid=33
http://www.kern-tuning.de/

I can't find the link for Ferry sport (or whatever they're called).

thanks for the sites...I've written them all and will advise the list with my findings.

You are right (what is "gob-smacked"? ignorant foreigner would like to know), I'm surprised that they are hard to find; interestingly, none of these web sites show tappets in their parts list.

As I reported in an earlier post, I did send my tappets/cam followers/lifters to a California shop, more or less famous over here; I talked to the owner today and he had just received them. He hadn't the time to examine them yet, but I can say, from our two minute conversation, that he was not...discouraging.

I'll let the list members know what I discover.

Steve R

Many people grind a 2thou convex in the followers to supposedly make them turn, but Renault actually had them flat but the holes in the head are actually machined at a slight angle to encourage the cam followers to turn. So just machine them flat.

If improving the cam, don't be too keen to go crazy with the regrind as they will not last. A 30/70 grind with 400 thou lift at the valve (rocker ratio 1.5 to 1) is about as far as I could recommend for a regrind.

If you want bigger, buy one of Mecaparts billets.