Howdy!

So if you haven't seen my new build thread, I'm going through my engine and going single turbo (8374).

I built my current engine in 2007 and it's been a champ. One thing that has always been an issue is a weeping oil pan, it's JUST ENOUGH to be messy but definitely not enough to try and fix it in the car and just make it worse.

I installed that (used) pan with (I think) Hondabond, installed upside-down on an engine stand, and used the Garfinkle oil pan brace. Sumbitch still leaked.

So...my goal this time is to FINALLY seal that joker up. I have a Chips Motorsports brace from like 8 years ago that's been in my Hope Chest o' Parts and I will be ordering a new oil pan.

That said, what is the current go-to RTV for oil pans? Would love one that comes in a large caulking tube so I can apply with a caulk gun and not have to squeeze a little tube.

Thanks
Dale

 

You'll probably get the usual responses - and there are a few options but my vote goes to Permatex Ultra Black.

 

We've been using toyota fipg for years on many projects to include FD oil pans and its the single most incredible sealant ever. It just works

 

Dale check this out….

It’s a great review of RTV!

Steve

 

Last year, I used Toyota Seal Packing 103 as a sealant for my oil pan. The Toyota Seal had excellent reviews on the web. It turns into a pliable rubber after it cures. It works very well.

 

Thanks everyone!

I have heard good things on the Toyota so I'm leaning that direction.

I think the big thing is a) the oil level stays above the seal line so it's always seeing oil, and b) rotaries tend to get gas in the oil and that attacks a lot of sealants that would normally survive just oil.

Dale

 

Good point on the presence of fuel in the oil... That may be why none of these sealants seem to work.

I used Permatex Gray as called for in the FSM on a couple of Miata oil pans in my race car and they never leaked or seeped. Who knows how that would work in the FD with the fuel presence...

 

When I built my FC short block in 2017, I used Permatex Ultra Gray, new pan, studs & nuts with Banzai oil pan brace kit, and a DIY pan baffle I fabricated (so 2 layers of sealant to deal with) - that setup is just starting to show a little hint of weeping at one spot about 1" long on the turbo side. When I got my FD in 2019, it had a brand new 13B-REW short block with the pan sealed with whatever goo they use at the factory, but I pulled the motor with about 200 miles on it for various reasons. One reason was to install a Banzai oil pan brace & stud kit - oddly enough the factory sealant goo was still somewhat pliable and easy to remove! Made sure all the bolt holes were cleared of all the old goo, pan surfaces flat & all mating surfaces surgically clean, used Hondabond this time around and no signs of weeping yet.

 

I work at a Ford dealership. I used the Ford diesel rtv and it has worked great. It is made to work with fuel dilution. Proper dry/cure time before adding oil is a big factor.

 

I used Hondabond with an Elite brace (not sure if they’re still in business), but it’s been 3 years and no leaks. One of the tricks, I think, is the 'rib' cutouts for the oil pan brace. If it’s flat, it’ll put pressure on the ribs or bumps on the oil pan and create uneven pressure. Elite was able to make cutouts so the ribs fit inside the brace, giving a more even surface when bolting the pan up. (As I was typing this, I searched the brace you're using, and it’s the same design, so maybe it’s just luck.)

Elite oil pan brace


Garfinkle oil pan brace