Coolant leak from front of engine
Friday, 15 December 2017
Jaguar S Type 2000
So, I realise that there are a lot of "snake oils" about, with varying credibility. This stuff is not one of them, but you do need to note the following. If you have an oil gasket leak, it will not work as this stuff goes through the cooling galleries. If your hole in your gasket is too big, it also may not work. This is why it's so good you have a money back guarantee. So I tried this with my S Type, it was leaking coolant from a hose and what I thought was the water pump. First thing I did was add some luminous dye to the coolant expansion tank so I could try to narrow down the keak. It was obviously seeping from a hole in the water pump outlet hose, bit of silicone rape and that sealed up that problem. I used a product called EZ fuse tape. Now, the luminous fluid was spraying from around the water pump area, on a V6 that was pretty hard to pin point. I bought a water pump, as I thought the gasket on that had gone. I had used some Radweld previously, loads of red stuff came out of the water pump and hardened. Seems I did have a hole in the water pump and the radweld fixed it. But small amounts of coolant were still coming out, coupled with the fact my heating was dodgy and blower hot and cold. I had used Steel Seal on a previous 320i and it worked. I thought maybe there is a small hole in the HG. I cooked engine right down, added enough coolant leaving space for the Steel Seal and started her up. You have to leave it for 30-60 minutes, I was observing the luminous droplets spraying about l. But the frequency was slowing, then suddenly no droplet spray! I kept it running and then went for a drive. Heating working g, no loss of coolant. But the next morning I did notice a little on my plastic cover at the bottom, think I gave it a lot of acceleration and the seal wasn't 100% yet. But after that, nothing and it continues to hold. I have a 3 litre and should have really used 2 bottles, but still now it's looking g like this will hold and I've saved over 1000. If it does go in the future, I'll add 2 bottles as recommended but I don't think it will. Don't floor it after you've just repaired it, as you may blue it as the seal isn't hardened yet. It works using Sodium Cilicate, no blocked rad like K Seal etc. I'm very happy, my old Jag is back to her best.