Good day Gentelmen, I am in stage to replace the engine heads gaskets.I have new head gaskets.Do i need to put sealant or adhasive between head gasket and engine crank case or just the gaskets. Thanks
please put a picture in of the gaskets. some gaskets already have a little sealant on. ferrari is not doing those gaskets by themselve. I had once gaskets from elring with this little sealant on. normaly it is no need to put any sealant on. both surfaces ( so head and block ) has to be clean and dry. I sometimes put on a very little sealant ( silicone ) where the water passes through. but even only a very very few. otherwise it could be that this sealant will close the hole and then you will get much trouble.
Have been a lot of postings about it; what I got from these posts is that at the ends you need to stick them to prevent leaks ...
If you mean head gasket then NO sealant...... If you mean cam cover gasket then a little sealant at the ends is worth its weight in gold. P
Well i ordered the gaskets from Euro spares and i do not know how they looks like.Are they with silicon o rings sticked to them.I read a thread some where about Ferrari head gaskets failure because of water holes pass within the gaskets. Okay what type of silicon gasket we are talking here? is it the red high temperature sealant.Any recomended brand name? Thanks guys.I will send pictures like one week from now when i recieve them.
Are you doing a valve job or something/ Seems an unusual amount of labor and $ to just replace the gaskets because? ? Me
Good day kerrywittig, Yes i have cylinder # 6 is not working and i discover this after i did pistons compresion test and i found cylinder # 6 bad.I removed the head and i found two intake valves are bend.I do not know why and it is only in cylinder # 6.So i thought it is good idea to remove the other head and check the valves.Well, refurbished both heads.Engine running only 20000KM. Thanks
Sorry to hear......I was in the same boat....but........24 bent valves....broken belt!! Rebuilt Me Image Unavailable, Please Login
this until now I never have seen that only from cyl. 6 both intake valves are bended. so please check the valve guides and also the tappets for the valve control
Turbo joe, my self i do not know why the two valves bent.I did not remove the valves guide yet.When i recieve all parts requested from Eurospares.I will remove the guides and investigate why. Any one know what posiblities might cause valves bend? Thanks
normaly only when the piston hit the valves. so may be the valve in the guides are not loose enough ( may be of broken guides - but both???? I doubt ) or the piston may be broken or the piston pin? until now I never had such a problem so it is only theoretical. but as I see it it is not a problem of the valve, it is a problem of the piston, because both valves are bend. so please check exactly the piston. put this piston in TDC and turn a little the crankshaft. then you just see if the piston will move or not. if not then there is too much play between the piston and the crankshaft. but also could be the rod bearing is not ok anymore. so how was the oil pressure? so you put the the piston in the middle and turn the cranshaft again. then the piston has to move immediately. if not - oh no, don´t think about this for me it seems to be a big job coming to you
you don´t have to remove the valve guides to inspect. when you take those out and same in again or new ones you have then to grind the valve seat also.
If anybody is looking for valve oil seals...........I have a whole new set still in the packaging. I didn't nreed them since I changed all my valves to a stainless steel type with different specs..........make me an offer if of interest to anyone. Offering Me
kerrywittig, i just bought oil seal set and coming on the way.But i can buy the other set.Just PM me how much you want on them. I did not see any valves heads hit the piston.No marks of hit.Also, i check TDC and they are no problem with piston pin or connecting rod. I want to know why because if i did not find the rootcause then the problem might come back. I will update you guys. Thanks for your assistant.
could it perhaps be that the valves got bent when you removed the head and put the head on a table? so the inlets just have been open? when have you seen first that the valves got bent? checked compression before removing the head? perhaps looked inside with an endoscope?
turbo-joe the valves are bend from the head side of the valves.I will send photos soon and show you how they are bend.I did compression test and that is why i new cylinder # 6 is not good. I am now looking for root cause. Thanks
Hosam, Can you give us a bit more info here? Was the car running well before? What occured before the problem? Something had to prompt you to do that compression test.
To qwazipsycho, The engine was running but the only thing is engine performance is weak.I know this because i have another two testarossa's and i know what they do on high way . Plus there was backfire when i remove my foot from fuel pedal.So i decided to do engine compression test and they told me cylinder # 6 not working. I think the bend intake valves was from backfire.I know the engine went under backfire.The left side engine bank was not running because of the fuel metering head was bad and i sent both of them for overhaul.When i installed them back, the backfire gone but the defect took place in cylinder # 6 intake valves. Maybe someone will say why not all left bank intake valve gone.I assume because cylinder # 6 is the closet one to muffler and saturated with fuel. This is all assumbtion. Thanks
