starter cable location and carb with cooling fluid inside !!

Polse7317 · Post by **Polse7317** » Tue Oct 27, 2015 6:03 pm

Y am testing water in the manifold to see if there is a leak in the m?tal...

May be y have done a mistake with the gasket: must it be sticked on the motor block?

Post by **mgcjag** » Tue Oct 27, 2015 7:35 pm

Hi Yves. ...In my opinion yes a non setting sealer (paste) should be used....I use Wellseal http://www.wellseal.co.uk Steve

Polse7317 · Post by **Polse7317** » Tue Oct 27, 2015 8:42 pm

Y think y'll use that

Moeregaard · Post by **Moeregaard** » Wed Oct 28, 2015 3:19 am

lataud wrote:Sorry but my knowledge of English is not as good to understand what you say by :lay a straight rule , may be you mean to verify if the surface of the metal is plane and so y must rectify it to be very plane and the other thing that Peter says is to be sure that the gasket is ok

That is correct. The surfaces of the manifold and cylinder head must be as flat and clean as possible, and the gasket must be in perfect condition.

Polse7317 · Post by **Polse7317** » Wed Oct 28, 2015 7:09 pm

My water manifold test is negative (no leak beetween the coolant room and the carb ) so it seems that the manifold is ok, i'll test it with pressure on the car later without the carbs. But y have taken out the two other manifold and found some "humidity .... around the holes of coolant some of them were wet when y touched them. It seems to me anormal because y have only filled the tank without any pressure in the pipes, so it must be a failure in my process of fitting the gaskets. The surface is plane as on the motor or the pipe. I'll fit some joint past on each side of the gaskets before tightening them.

osgii · Post by **osgii** » Wed Oct 28, 2015 7:54 pm

Yves,

j'ai pass? mon temps ? affronter des probl?mes, comme toutes les personnes ici qui se sont lanc? dans l'aventure de la restauration. On passe tous par des moments d'euphorie intense, puis par des moments de d?ception profondes...

Mais une chose est sure: quoi qu'il arrive et quoi que tu ai pr?vu, prends le temps de r?parer les erreurs compl?tement, tout en gardant en t?te qu'apr?s une grosse d?ception, il y a toujours un moment d'euphorie intense :)

Tu tiens le bon bout, ton travail est exceptionnel, et le r?sultat sera bien en dessus de tes esp?rances... je te le garantie! :)

Polse7317 · Post by **Polse7317** » Wed Oct 28, 2015 8:34 pm

Merci ?a remonte bien le moral, surtout sur ce forum ou les amateurs "pro" sont l?gions et on se sent un peu "petit" face ? leur connaissance et capacit?s .

Thanks a lot for these heartening words, it's true that sometimes you feel bad during the restoration and sometimes it's wonderful ....
tomorow will be another day .....

PeterCrespin · Post by **PeterCrespin** » Wed Oct 28, 2015 11:01 pm

Souviens-toi, comme Dr Pangloss le prouvait admirablement: Il n'y a point d'effet sans cause, et que, dans ce meilleur des mondes possibles, tout va pour le mieux. Selons ses principes de metaphysico-theologo-cosmolonigology c'est bien d?montr? que les choses ne peuvent ?tre autrement, car, tout ?tant fait pour une fin, tout est n?cessairement pour la meilleure fin. :-)

Pete

Polse7317 · Post by **Polse7317** » Thu Oct 29, 2015 8:28 am

well , y am coming back with good feelings .... after those 2 posts

before refitting the manifold i'd like to know what is the cranking torque for the bolts which tighten them to the motor block ? Y don't see that point on the jag manual...
Y have to be sure that y don't do a new mistake when refitting them

PeterCrespin · Post by **PeterCrespin** » Thu Oct 29, 2015 8:53 am

Someone may give you a value, but remember that thousands of years passed before the torque wrench existed. Consequently, most normal spanners are the correct length for use with average strength on typical fasteners. In your case, unless you are built like either Ast?rix or Ob?lix, careful hand tightening with a ring spanner of this very common size will be all you need. Even tightening, beginning with the centre two studs per manifold near the water passage, is more important than a precise torque spec applied thoughtlessly. Torque wrenches are important for critical fasteners but less so for normal ancillary fixings IMO. Careful use of a hand spanner and using gasket cement should solve your problem if the parts are good.

Don't forget any brackets or clips that may need to go under some washers.

ralphr1780 · Post by **ralphr1780** » Thu Oct 29, 2015 9:15 am

Bonne nouvelle Yves. Apr?s un bon nettoyage et remontage des joints avec une p?te de scellage ce sera vite oubli?.
Sur une de tes photos, j'ai remarqu? que le cablage du g?n?rateur de rpm est fort proche de la tringlerie d'acc?l?rateur. Je pense qu'il serait plus ad?quat de le faire passer soit derri?re la tringle vers la paroi pare feu puis par dessus la tringle; soit toujours devant la tringle mais avec une distance plus importante.
Bonne continuation!

Polse7317 · Post by **Polse7317** » Thu Oct 29, 2015 4:05 pm

Bien vu Ralph , je vais y rem?dier. Au passage j'ai un probl?me ? ce niveau: le capot touche les cosses en position ferm?e . Je dois les courber pour ?viter le choc, le r?glage de la hauteur du moteur sur le silent block AR est d?j? en position basse....

tinworm · Post by **tinworm** » Thu Oct 29, 2015 4:07 pm

Going back to what I originally said - is the gasket material correct ? From your photo it looks dimpled -? If the material is a metal and paper sandwich ie 3 layers the coolant will soak down between the the two paper layers and come through into the inlet port. The proper gasket is plain gasket paper on the 3.8 .The metal/paper composite is used for the exhaust only - my gasket set had both types and this is exactly what happened to me.

hope this helps Barrie

Polse7317 · Post by **Polse7317** » Fri Oct 30, 2015 5:05 pm

Here is the gasket bought at SNGB ... it is a metalsheet beetween two cardboards . It's made for that use .....says SNG . Y have planned the manifold surface with a sand paper on a glass .

tinworm · Post by **tinworm** » Fri Oct 30, 2015 6:10 pm

Thats the one that leaks Yves - did the gasket set contain three plain gaskets also - if so these are the right ones. My gasket set had both types , after fitting the plain gaskets no more problems.

regards Barrie

Polse7317 · Post by **Polse7317** » Sat Oct 31, 2015 6:55 am

Hi Barrie, the set has only theese gaskets, no choice at all !

tinworm · Post by **tinworm** » Sat Oct 31, 2015 8:40 am

Hi Yves , I bought my gasket set at Jaguar spares day at Coventry about 18 months ago , you say yours came from SNG Barratt ? - I have been restoring Jaguars for about 30 years now and I know from memory what gasket material was used years ago - and this has been changed recently . Other people must have had similar problems ?

regards Barrie

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starter cable location and carb with cooling fluid inside !!

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