Essex 3.0 ltr Engine rebuild

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Don Ricardo
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Essex 3.0 ltr Engine rebuild

Post by Don Ricardo » Sat Dec 28, 2019 9:49 am

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Having just finished my engine rebuild and it's been quite a long haul. It all started when I had a distinct what I thought was a loose tappet, which lead to the rebuild, I had decided to remove the engine and g/box to make life easy as I couldn't find any tappet fault. So I stripped off the inlet manifold and cylinder heads off the block and on closer examination I found several cam followers quite badly marked, I was also not to impressed with the cam timing/drive gear. At this point I decided to check the cam shaft this I was not happy with. So a few frantic calls to the UK later I managed to locate the following:- Alloy cam drive gear; new cam shaft: set of 12 cam followers and new valve springs: Oil pump drive shaft and new electronic distributor (Thank you Burton Power). As the cam shaft and followers were the originals I have to assume that the quality control in 1974 was not very good, as you will see in the photo's some of the cam lob's are not fully formed, which I assume helped cause he pitting on the cam follower faces, this engine has only done 48,567 miles and I was informed that it had been serviced regularly



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scimjim
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Essex 3.0 ltr Engine rebuild

Post by scimjim » Sat Dec 28, 2019 10:35 am

Can’t see much from the photos but two possibilities for the wear on a 45 year old engine - it’s really 148k or 248k miles, or it’s corroded through sitting unused in a damp environment?


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efi_sprintgte
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Essex 3.0 ltr Engine rebuild

Post by efi_sprintgte » Sat Dec 28, 2019 10:54 am

That looks like corrosion to me too
(is it my device or are the pics abit blurred?)


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Essex 3.0 ltr Engine rebuild

Post by Oldconn » Sat Dec 28, 2019 3:38 pm

I agree with Jim, having seen a lot of camshafts like that. It's usually because the engine has been stored or left standing for a long time with old oil in it. Old oil is contaminated and the impurities are corrosive.


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gtcse8
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Essex 3.0 ltr Engine rebuild

Post by gtcse8 » Sat Dec 28, 2019 6:38 pm

efi_sprintgte wrote:
Sat Dec 28, 2019 10:54 am
(is it my device or are the pics abit blurred?)
I put it down to Christmas spirit ( Two bottles of wine )


Mark Wilson. Garage sale everything must go. :cry:1 SE6b, 1 GTC Shell &1 SE6a shell & a Triumph Daytona. Also on YouTube :wink: lookup V8 Chevy https://youtu.be/lbpvDGAMY6g https://youtu.be/7xTrbr0ETSA https://youtu.be/K7HfYVd5Flo

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philhoward
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Essex 3.0 ltr Engine rebuild

Post by philhoward » Sat Dec 28, 2019 6:57 pm

efi_sprintgte wrote:
Sat Dec 28, 2019 10:54 am
That looks like corrosion to me too
(is it my device or are the pics abit blurred?)
I even put my glasses on and still blurred...but looks like corrosion?


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gtcse8
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Essex 3.0 ltr Engine rebuild

Post by gtcse8 » Sat Dec 28, 2019 7:48 pm

philhoward wrote:
Sat Dec 28, 2019 6:57 pm
but looks like corrosion?
I agree, Phil I have today cleaned a couple of cylinder heads in my ultrasonic bath and a couple of "Brand new" valves are showing obvious marks, either from water or oil contamination. :w


Mark Wilson. Garage sale everything must go. :cry:1 SE6b, 1 GTC Shell &1 SE6a shell & a Triumph Daytona. Also on YouTube :wink: lookup V8 Chevy https://youtu.be/lbpvDGAMY6g https://youtu.be/7xTrbr0ETSA https://youtu.be/K7HfYVd5Flo

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David Tew
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Essex 3.0 ltr Engine rebuild

Post by David Tew » Sun Dec 29, 2019 12:15 pm

I had the same problem on some Coupe racks I was rebuidling where several pinions showed bad signs of corrosion. Once the hardening wears through the metal is very vulnerable to contaminants in the oil/grease.

I'd suspect the engine has done more than 48K miles!


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Don Ricardo
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Essex 3.0 ltr Engine rebuild

Post by Don Ricardo » Sun Dec 29, 2019 6:57 pm

I thank you all for the comments. First off I apologize for the poor quality of the pictures, they looked fine on the camera . As for the mileage when I bought the car it had a certificate from the Devon RSSOC confirming the mileage,unless it had been stored before the certificate was issued and I acquired it. However, all appeared in order,as I went through the car checking all the known faults I knew of, as this was my third scimitar I was no stranger to the car's. Since then it had only done a couple of thousand miles then I dry stored it in southern Spain for a couple of years, till I had time to start it's restoration, which is a slow process over here, having to source and acquire all the parts I needed from the UK



gtcse8
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Essex 3.0 ltr Engine rebuild

Post by gtcse8 » Sun Dec 29, 2019 8:13 pm

Don you don`t say which car the 3.0Ltr engine is fitted to?. :lol:

Trawled back through all the posts and I see 1974 is mentioned, so must be an SE5a ?.


Mark Wilson. Garage sale everything must go. :cry:1 SE6b, 1 GTC Shell &1 SE6a shell & a Triumph Daytona. Also on YouTube :wink: lookup V8 Chevy https://youtu.be/lbpvDGAMY6g https://youtu.be/7xTrbr0ETSA https://youtu.be/K7HfYVd5Flo

Don Ricardo
Posts: 27
Joined: Sat Oct 20, 2018 8:49 am
Location: Costa Blanca, Spain

Essex 3.0 ltr Engine rebuild

Post by Don Ricardo » Mon Dec 30, 2019 5:20 am

Sorry GTCSE8, the car is a December 1974 SE 5A manual in Highland Purple



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