Cerbera engine problems

Cerbera engine problems

Author
Discussion

musicms1

Original Poster:

2 posts

117 months

Thursday 29th January 2015
quotequote all
Hi,

I've been quoted £4,500 to replace both headgaskets, timing chains and waterpump on my 4.2 V8 Cerbera. Does that sound about right? Also does anyone know the cost of a full engine rebuild on a Cerbera?

Cheers,

Malc

CerbWill

681 posts

124 months

Thursday 29th January 2015
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Seems expensive when RND Engineering want 5k for a rebuild. Not sure how they're rated though.

scerbera

102 posts

120 months

Thursday 29th January 2015
quotequote all
That sounds like absolute daylight robbery to me.

ukkid35

6,283 posts

179 months

Thursday 29th January 2015
quotequote all
...and waterpump

So effectively a full rebuild, and therefore £4.5k seems believable.

Might be worth thinking about the diagnosis though. How do you know it needs that work?

FarmyardPants

4,167 posts

224 months

Thursday 29th January 2015
quotequote all
Call Andy at APM automotive.

Edit: water pump doesn't imply full rebuild to me. A full rebuild implies top end - new valve seats, valves, buckets, stem seals, and possibly other things like valve springs and cams depending on the state of the existing items. Not to mention the bottom end stuff like piston rings, liners, bearing shells etc. I would expect a full rebuild for around the 5 or 6k mark obviously depending on the state of the engine. Throw another 2 or 3k at it for a 4.7 smile

Edited by FarmyardPants on Thursday 29th January 16:16

Tanguero

4,535 posts

207 months

Thursday 29th January 2015
quotequote all
A 4.7 is a LOT more than £3k on top of that price.

jamieduff1981

8,040 posts

146 months

Thursday 29th January 2015
quotequote all
CerbWill said:
Seems expensive when RND Engineering want 5k for a rebuild. Not sure how they're rated though.
APM or Powers would be who I'd want to do the job.

SimonKD

1,344 posts

237 months

Thursday 29th January 2015
quotequote all
Any of the 3 jobs you mention is an engine out job.
Probably best to get them all done together.
Were you quoted for copper head gaskets or the standard type?
What is the matter with the water pump? Impeller u/s or main shaft that drive all 3 pumps?

Regards
Simon


ukkid35

6,283 posts

179 months

Thursday 29th January 2015
quotequote all
FarmyardPants said:
Call Andy at APM automotive.

Edit: water pump doesn't imply full rebuild to me. A full rebuild implies top end - new valve seats, valves, buckets, stem seals, and possibly other things like valve springs and cams depending on the state of the existing items. Not to mention the bottom end stuff like piston rings, liners, bearing shells etc. I would expect a full rebuild for around the 5 or 6k mark obviously depending on the state of the engine. Throw another 2 or 3k at it for a 4.7 smile

Edited by FarmyardPants on Thursday 29th January 16:16
Once you split the block to replace the waterpump you have to replace all the worn items you find enroute - don't you? That to me is the definition of a Full Rebuild.

However, this all begs the question - WHY?

Presumably there is an overheating issue, but it has somehow managed to destroy both headgaskets and caused no other damage. The overheating is presumably due to a failed waterpump, but once again without any other consequential damage? Why did the waterpump(s) fail, how come the oil pump didn't fail - they are all one the same axillary drive shaft.

There are too many unknowns here.

esso

1,849 posts

223 months

Thursday 29th January 2015
quotequote all
jamieduff1981 said:
APM or Powers would be who I'd want to do the job.

If you have the symptoms described I would totally agree with this statement.

anonymous-user

60 months

Thursday 29th January 2015
quotequote all
musicms1 said:
Hi,

I've been quoted £4,500 to replace both headgaskets, timing chains and waterpump on my 4.2 V8 Cerbera. Does that sound about right? Also does anyone know the cost of a full engine rebuild on a Cerbera?

Cheers,

Malc
OP you don't say who quoted you, but for that work list, its not too dissimilar to the cost of mine done at APM. Its possible the company quoting is also building in other work items that are likely to need addressing at the same time. That way, if those items don't need doing they look like they're awesome by being under budget, and if they do need doing, then they look like they know what they're talking about.

On my recent rebuild, I had the water pump rebuilt/with new impeller (impeller had to be custom made), head skim (which should be done anyway), gaskets, new valves (if they haven't been replaced since new, then they should be), new cams, new cam followers, timing chain, pulleys etc. Labour cost is the big differentiator here not so much the parts.

gruffalo

7,676 posts

232 months

Friday 30th January 2015
quotequote all
esso said:
jamieduff1981 said:
APM or Powers would be who I'd want to do the job.

If you have the symptoms described I would totally agree with this statement.
Worth trying STR8SIX as well, they a brilliant job on my 4.7!

I especially liked the way they went through the different option, detailing the pro's, con's and costs of each.


Personally I wouldn't go anywhere near RND.

jamieduff1981

8,040 posts

146 months

Friday 30th January 2015
quotequote all
gruffalo said:
esso said:
jamieduff1981 said:
APM or Powers would be who I'd want to do the job.

If you have the symptoms described I would totally agree with this statement.
Worth trying STR8SIX as well, they a brilliant job on my 4.7!

I especially liked the way they went through the different option, detailing the pro's, con's and costs of each.


Personally I wouldn't go anywhere near RND.
Yes STR8SIX should be on the list too. I can't comment on others on the basis that I have nothing good to say.

Gazzab

21,218 posts

288 months

Friday 30th January 2015
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It will maybe cost more - once engine is out there will be other items that will need doing eg chassis header rails, heat shield, clutch, engine internals, cracked manifolds etc
You need to go into 'minor' engine work with you eyes wide open.

jackwibble

664 posts

165 months

Friday 30th January 2015
quotequote all
Tanguero said:
A 4.7 is a LOT more than £3k on top of that price.
Maybe 5.5k more depending on what else needs sorting

Tanguero

4,535 posts

207 months

Friday 30th January 2015
quotequote all
jackwibble said:
Tanguero said:
A 4.7 is a LOT more than £3k on top of that price.
Maybe 5.5k more depending on what else needs sorting
If the original quote is £4.5k then a 4.7 with billet crank and new cams is just shy of £10k more...

ETA Including VAT

OutlawFlat4

697 posts

153 months

Friday 30th January 2015
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£14.5k for a 4.7 build??!!!! Holy st thats a lot of money! More than my car is worth!

Edited by OutlawFlat4 on Friday 30th January 18:47

Tanguero

4,535 posts

207 months

Friday 30th January 2015
quotequote all
OutlawFlat4 said:
More than my car is worth!
Not afterwards, at least theoretically...

jackwibble

664 posts

165 months

Friday 30th January 2015
quotequote all
Tanguero said:
jackwibble said:
Tanguero said:
A 4.7 is a LOT more than £3k on top of that price.
Maybe 5.5k more depending on what else needs sorting
If the original quote is £4.5k then a 4.7 with billet crank and new cams is just shy of £10k more...

ETA Including VAT
Well I didn't go for a billet crank glad cos they seem verrrrry expensive!!

gruffalo

7,676 posts

232 months

Friday 30th January 2015
quotequote all
I did, I don't want the risk of it breaking, and H section con rods and loads of other stuff as well,

She is turbine smooth and has a 120mph usable band of power in 4th and the world goes into fast forward mode when you get over 3000rpm in any gear.

The 4.7 is a wonderful engine with all the mentalness of the AJP but a much more modern feel.