348 Engine repair thread

Ahh I know Elring had issues back in 2010 when they switched to Spanish, but that was 12 years ago, the material would not compress enough, last I knew issue was solved. I also have the original German Elring as well as the new ones. That said nothing to do with liner protrusion it was the water jacket seal. I also suspect incorrect torqueing, its specific and very easy to get wrong even when you think your doing it right. Guess we'll see.

Also Cometic will make them if you ask. I also contacted Dave Helms and they claim to not have gaskets.

https://www.ferrarichat.com/forum/threads/348-new-head-gasket-leaking-coolant.288842/

 

Nope, new ones first. All kinds of liner protrusion on the 348, issue was silicone or what ever it is was too hard and did not compress around water jackets. Originals are from 93.

Sent using FerrariChat.com mobile app

 

Picking up valves, guides and seals today. Guides are in spec but while the patent is open... Will drop them off at the shop this week. In the mean time I ordered a metric azz load of oem hardware, I'll be replacing most nuts and washers, been cleaning and maintaining things things people forget like the intake butterfly, verifying vacum canister for it, cleaning TB's etc in the interim. Also have a cart load of Ricambi parts, Daniel mentioned some are special order and it will take a few weeks to get the package. I am definitely a "while the patient is open" kind of owner. Got all all new Solenoids #111704, water temp sensors, new cyl head cap nuts from Hill eng etc as well. Will post some new pics in few weeks, heads will be fully machined 3 angle seats etc and the shop will set valve clearances at the same time. Will of course time the cams with a degree wheel.

 

I will try using the original OEM head gaskets and then devise a method to pressure test the cooling system in the block while on the stand. Plug water pump hoses with custom plugs I will fab up and then use a Schrader valve on a hose into the intake manifold water jacket and pump to 15 psi is my guess. Any thoughts?

 

Got it, good tip on PVC, I assume you plug the thermostat and water pump end and pressurized the hose going in the manifold?


Sent using FerrariChat.com mobile app

 

Unless the gasket is damaged before you install it I would imagine its hard to prove whether it is the gasket or an install issue.

 

Clean intake runners especially where the injectors seat, they get carbon build up in them, I used a round wheel brush and brake cleaner, all shiny inside now.

Also clean and lube the intake valve linkage and pull a vacuum on the actuator to ensure the diaphragm is still working and the valve operates under a vacuum.

Swap out the nuts and washers for new OEM ones and torque to spec. Mine were loose and uneven before I redid it.

Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login

Sent using FerrariChat.com mobile app

 

$500 in new OEM hardware awaits for any nasty looking nut and washer.

Front timing cover for example, got some more to do still, chipping away at it. Replace, torque, retorque etc. Additionally the hill timing cover bearing I put in there 2 years ago looks good, no leaks. Yey.

Block all cleaned and ready for final wipe down when the heads arrive in a few weeks. Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login

Sent using FerrariChat.com mobile app

 

Oh no it doesn't come that way those are bins that I put them in. I ordered most of the hardware from Ricambi from parts diagrams then buy 10 of item x and so on and a good bit from superformance. Pretty much every crush washer in the car etc I have multiples of. Bolts nuts washers zinc and the black ones for the fender liners etc.

No those red bins stacked underneath are five deep of big bins and those are full of my smaller spare Ferrari parts. Stuff that's too big like spare maths and spare HVAC unit etc are in boxes.

Below is also a small bin of regular plastic clips that break that you always need I have spares of.

Sent using FerrariChat.com mobile app

 

Plastic clips. Image Unavailable, Please Login

Sent using FerrariChat.com mobile app

 

So this is interesting, 2 pully numbers the old one is good up until assembly 4383 then its a new part number. The difference is the rear pully snout is shorter on the new one. I recall there was some issue with a front block bearing casting needing to be bigger so I assume that's what happened and the larger front surface pushed out requiring a shorter snout. Easy enough to have one machined out of 1018 steel after carful measurement which I did. I assume the chamfers are there to protect the bearing it pushes against which I will have done. Something like this but inside edge also de-burred. Cutting the key way square requires broaching after chamfering the ID so the cost gets double. So the key way is slightly taller and then rounded above the key height which is cheaper to machine, there is no load on it its a spacer. May just deburr the ID manually with a round file.

This spacer is like $350 to machine 4, a Brembo spacer is like $200 for 4 as its simpler. once cojld always a washer at Mcmaster carr and do it manually however the thickness will be off as much as 1mm, not sure that matters, but it does to me.


Image Unavailable, Please Login Image Unavailable, Please Login

 

When I have them I can give them to members I know who do or will need them, outside that they have to prove a failure and I'll give them one. Lead time is like 3 weeks. If I remove the outside chamfer and DIY that price goes from $68 a pop to $33 a pop. hmmmm, put a bolt though it, stick it in the drill press, spin it, put sandpaper on the outside and round it. Donr that many times....

 

I'll get 8 made should be about a week, if they can find the right material thickness they can waterjet it.