Omega Owners Forum

Chat Area => General Car Chat => Topic started by: raywilb on 08 December 2016, 00:58:10

Title: rover 25
Post by: raywilb on 08 December 2016, 00:58:10
awhile ago I posted that I was going to renew water pump & cam belt + thermostat with new housing on a 1.4 rover 25. I haven't yet got round to doing it . water loss is occurring but don't think its head gasket as I have done 1k since getting it & the oil has no sign of mayo. I have purchased a hg set that somebody advertised very cheap so may do hg. my query is has anybody done one on these k series engine. it looks fairly straight forward , are they ?  :y
Title: Re: rover 25
Post by: omegod on 08 December 2016, 07:31:50
Did you check the inlet manifold gasket as advised?
Title: Re: rover 25
Post by: terry paget on 08 December 2016, 09:58:22
I did a HG on a Rover Streetwise 2 years ago, not too bad a job, easier than on an Omega 2.2.
The Rover was daughter-in-law's car, it had always lost a bit of coolant, which she topped up every week, using the car every day for work. Then she had a baby, 4 weeks off work, and car would not start. They called in grandad, engine would not turn over, nor even tow start, in fact engine would not turn at all. I came to this forum for advice, found water in cylinder in no. 1,

Its an elegant engine, much alloy and plastic, used in lots of Rovers, very light and efficient, but I fear prone to HG failure. Good luck!
Title: Re: rover 25
Post by: Marks DTM Calib on 08 December 2016, 10:14:01
I did a HG on a Rover Streetwise 2 years ago, not too bad a job, easier than on an Omega 2.2.
The Rover was daughter-in-law's car, it had always lost a bit of coolant, which she topped up every week, using the car every day for work. Then she had a baby, 4 weeks off work, and car would not start. They called in grandad, engine would not turn over, nor even tow start, in fact engine would not turn at all. I came to this forum for advice, found water in cylinder in no. 1,

Its an elegant engine, much alloy and plastic, used in lots of Rovers, very light and efficient, but I fear prone to HG failure. Good luck!

Yes, designed sadly for certain parameters without considering the consequences on reliability.

Title: Re: rover 25
Post by: raywilb on 08 December 2016, 10:40:57
Did you check the inlet manifold gasket as advised?
  no I haven't yet. one of the reasons that I bought the HG kit is because it contains all gaskets, so intend checking. also I have noticed signs of coolant loss from underneath the header tank when I topped up this morning. somewhere near the hose to block. there is streaks on the pipe near the jubilee clip. resembling water loss .
Title: Re: rover 25
Post by: citroenguy on 08 December 2016, 16:06:40
I did a HG on a Rover Streetwise 2 years ago, not too bad a job, easier than on an Omega 2.2.
The Rover was daughter-in-law's car, it had always lost a bit of coolant, which she topped up every week, using the car every day for work. Then she had a baby, 4 weeks off work, and car would not start. They called in grandad, engine would not turn over, nor even tow start, in fact engine would not turn at all. I came to this forum for advice, found water in cylinder in no. 1,

Its an elegant engine, much alloy and plastic, used in lots of Rovers, very light and efficient, but I fear prone to HG failure. Good luck!

Yes, designed sadly for certain parameters without considering the consequences on reliability.

Yeah they made it worse over the years, due to cost saving..the early ones have very litte problems. And it was a bit overstressed in the heavy awd freelander
Title: Re: rover 25
Post by: TheBoy on 08 December 2016, 18:36:57
The later ones have improvements, but gets a plastic intake. Leaks here usually misdiagnosed as HG
Title: Re: rover 25
Post by: Nick W on 08 December 2016, 18:43:31
The later ones have improvements, but gets a plastic intake. Leaks here usually misdiagnosed as   cause HG


Fixed that for you!


The later ones are much better, mainly due to heavier duty parts from the more highly stressed Freelander.
Title: Re: rover 25
Post by: TheBoy on 08 December 2016, 18:46:31
Yes, any coolant glitches WILL kill the HG.

The MLS gasket does appear to make it more robust, but needs the new ladder as well, making it a pain to fit
Title: Re: rover 25
Post by: citroenguy on 08 December 2016, 18:51:45
The early R8īs and Metros, had very few hg failures though. They also had the thermostat housing and inlet manifold mad of aluminium.