Helicoil or TimeCert for valve covers?

Personally, I never bothered to stack them. One is plenty in this application. Stop it at flush.

Jim

I'm sure one would be enough. I just wanted to match the length of the bolt.

The standard thread engagement is normally 1.5X the bolt diameter into tapped steel. A steel bolt into aluminum would be 2-2.5X the bolt diameter. So a 6mm bolt should have 12-15mm of engagement in this application. Even though the heli coil is steel, the parent metal is aluminum.

Been using Heli-coils for decades in my shop for all sorts of fasteners. Never an issue.

As I mentioned above, once i figured out the stacking technique they went in like butter. One hole got only one insert (because I destroyed one in the tool) but that bolt tightened down just as well as the others with two inserts per hole. It's nice to finally have a good seal on those things. Now if I can just get my oil filler to stop leaking.

More details please. A leaking oil filter is a rare occurrence unless the old ring gasket was left behind on the engine when the new filter was fitted. Or, the new ring gasket was not seated correctly on the new filter. Either that or the filter base was bent or distorted. I have never had a filter leak at the crimp however, it is a possibility.

I usually remove the ring seal from the new filter, insure that there is nothing adrift, refit the ring seal and install the filter.

Filter brand?

DEF,

change your hearing aid battery

oil FILLER not filter.




mine leaked, I replaced the O rings, it still seeps a bit.

That's great. All due respect Mr. Def Sir.

That said, new orings, dry it off, dry it off again, pull the lower half, dry that off twice, etc. still seeps.

Damn meds are outta whack again.....can't even see straight...

I think I need to hide the keys to the cars and the GS....

Hide from yourself? Alzheimer's going on too?

Very likely but I forgot, I think?

Anybody like the new avitar? I'm thinking of producing a calendar.

What was it? A flower?

Yes. Yellow daffodils, King Alfreds to be specific....growing in my front yard.

I'm thinking of installing a bud vase on the GS similar to the one found on the VW Bug.

I use Heli coil on aluminum intake for a small block chevy requiring 30 foot pounds of torque. no issues ever.

+1 fully agree. And yes I worked on McDonell as well as Boeing planes as technician and engineer for more than a decade, mention that cause not all aircraft specialists are in love with HeliCoil

Well, for the low torque bolts in question it does not play a role if you use HC or TC or whatever ...

Then there were those who were promoting glue or JB Weld for the repair...

:eek1



Ya might as well use bubble gum.

OK.... some of you are saying that if the bolt is removed often, the Helicoil can have "problems"..... please explain.

Gonna luv to see how this one gets spun !

Yep, may work well too

Some think the heli-coil will beck out with the screw, but experience tells this is simply not the case.

Jim