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General Discussion / Re: Head gaskets & K seal
« Last post by Jeff J on Sep 16, 2018, 13:02:07 »
Thanks Scotty I can relax now that I have had a specific confirmation of it's efficacy. I followed the instructions to the letter & after it had cooled down I checked the water in the radiator which does appear to be sludgy or discoloured so that was also reassuring.
General Discussion / Re: brakes
« Last post by scotty on Sep 16, 2018, 10:33:02 »
Glad you have got sorted!
General Discussion / Re: Head gaskets & K seal
« Last post by scotty on Sep 16, 2018, 10:30:08 »
I have used Kseal on 1256 engines in the past. It seals water leaks well and will continue to protect for a considerable time. What it won't do is seal any leaks between the cylinders - this is often a problem given the narrow width of the gasket in those areas. Kseal is about the best of the chemical seal products available retail - It was developed especially for the Kover K series engine which was notorious for water leaks due to its wet liner and though bolt design .
General Discussion / Head gaskets & K seal
« Last post by Jeff J on Sep 16, 2018, 08:29:07 »
As mentioned in my post about brakes, I was struggling to get a new head gasket & my local motor factors told me about a product called K-seal, which I had never heard of. A bit pricey, but I thought it would be a lot easier than taking the head off again. I tried it & it did exactly what it said on the tin. Unfortunately I have read conflicting reports on the web about the use of this product & despite the motor factor saying that they sold lots of it & had never had any complaints, I can't help wondering if I have done the right thing. Has anyone used this product on a 1256cc Chevette engine & had ill effects from it, or used it successfully?
Then of course, as sods law says, I managed to get a head gasket at a car boot sale of all places.
General Discussion / Re: brakes
« Last post by Jeff J on Sep 16, 2018, 07:18:07 »
I thought I would update this post in case anyone has the same frustration as I had with the master cylinder. It appears that there are at least 2 different Girling  cylinders & as Bill says possibly many other OM types that have been fitted over the years. Anyway if replacing seals the different types can look identical but have a different hole size that causes them to become distorted inside the cylinder if the wrong one is fitted. Even when you do get the correct ones you may find as I did that the primary piston sticks in the compressed position & will not return to the relaxed state. This means you can pump the brake pedal all day, or even power bleed, as has been suggested & the brakes will never work properly. I suspect the bore was damaged even though I could not see anything wrong. In the end I bit the bullet & had it re-sleeved & refurbished at Past Parts as I did not want to rework the piping & wish I had done that in the first place.
General Discussion / chevette parts
« Last post by chevey 66 on Aug 17, 2018, 18:34:38 »
Hi All

looking to see if any one knows of where I could find a hatch back wiper linkage and a dash board (colour doses not matter) any help would be most valuable
General Discussion / Re: brakes
« Last post by Bill on Aug 05, 2018, 20:57:47 »

as mentioned on facebook there a lot of variants of the balancing valve all with different port locations. I have 7 vehicles and only 2 have the same type!

I had to pinch one from crusty and fit a new brake pipe to the nearside front caliper as that outlet was different on the balancer.

you could just fit a couple of 3 way T's and join the pipes to them and then join them together. Or just join the front pipe that breaks into the balance so it goes straight to the front  and likewise for the rear so they are on independent cylinders still.

If you need to restrict the flow to the rear in the unlikely event hard sudden braking causes the back wheels to lock up first then a simple inline restrictor would suffice to the rear brake circuit.  There is a convenient join in that pipe on the bulkhead to the right of the engine too.

General Discussion / Re: brakes
« Last post by scotty on Aug 05, 2018, 10:29:36 »
The only real difference is that the warning sensor was changed from the proportioning valve to the reservoir cap.  As you say just rearranging the pipework to suit should be fine. 
General Discussion / Re: brakes
« Last post by Jeff J on Aug 04, 2018, 19:51:40 »
Fitted new seals to master cylinder & it worked ok on the bench. But when I refitted it I had the same problem. Stripped it down again to find that one of the seals on each piston was damaged. I'm thinking I need new cylinder & possibly pressure regulating valve but I'm struggling to find the one for my year anywhere. Does anyone have any ideas. I was looking at the 1979 variety & wondered if I could just fit my reservoir cap & re-work the pipe work ( or is it not that easy ) Thanks.
General Discussion / Re: brakes
« Last post by Jeff J on Jul 30, 2018, 16:38:20 »
Thanks for that info.
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  • parko: what fo you need barry
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