Land Rover Series 3 Restoration - Part 86 - Checking the Block & Head - Pt 3
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- Опубликовано: 8 сен 2024
- Dear All,
Welcome back to the head gasket job. In this episode I check the head and block for warping (warpage?) and replace the valve adjuster pin on the rocker shaft. I also gain a bunch of experience along the way!
I am getting closer to completion but this is not a ten minute job. So far its been three days and I have at least one or two more to go I recon.
I look forward to the chat. Speak soon :)
I agree with cleaning everything out fastidiously, do everything you can to prevent having to do it again in the near future.
Like you, I walk away near the end of a job if I'm getting tired or bored. A fresh pair of eyes the next day can prevent the 90% of mistakes made during the last 10% of the job.
👍
The suspence!
It's also conceivable that the particular head you mentioned requires longer or shorter head bolts or a particular thickness washer. If the head bolt either bottoms out in the block or isn't long enough to bite correctly, this would also result in a blown head gasket. It may even have a different specified torque.
Interesting, how would you check Greg?
@@srw_cricket2976 measure the depth of the hole the head stud goes into with the head and washer in place and compare it to the length of the head bolt or contact the head supplier. I've no experience with this head, but some aftermarket heads for BMC engines specify upgraded head studs or bolts of different lengths, tensile strength and torque or supply there own. The thickness of the boss the bolt goes through in the head may differ from stock.
Hi Greg, a lot of insight again. Many thanks and very interesting. I will definitely check the torque wrench. 👍
So glad to see no warping on head or block!
Thanks Bernard, me too!!
Great vid ! And thanks for the shout out. My daughter thinks I’m cool for the first time since she was a toddler.
I think your rocker shaft has been put in wrong .. and that’s why the hole on No.2 (?) pedestal doesn’t line up for the special screw ..
Hey, cool!!! 😀
Re shaft: So you think it is the wrong way round?
@@My911 I don’t know S3’s … but the S2 and 2a’s have two locking screws. The only way I would think you wouldn’t have a hole would be it being in wrong ? I’d check though with someone who knows for certain.
Will do.
#Steamwally, here I come! 😅
No warping! Good news! You must be very relieved 👍🏻
Absolutely. Can’t wait for the weekend to get back up there and get it fired up!!
great way to locate the cylinder head is to use two old cylinder head bolts and cut the heads off and screw by and into main body holes to act as a guide for the head.... put some of the proper bolts in and take the cut ones out... perfectly aligned.
Cool tip. Thanks!
Great job
Thanks Jamie. 👍
I would have taken the manifold off just to help with the location of things
Nice job well done. That it hg will last forever
Thanks Kevin. I hope so. 👍
Good day just looking at you vids great work! My question is, was it the head gasket that was causing the rattle when accelerating?
Hi, thanks for your message. Yes, that was the culprit. Regards Joël
I hope the comment is useful, but the thing is a low compression series landcover shouldn't blow a head gasket, certainly not after almost no time on the road. If you don't change the coolant in 30 years or just use water, then sure that might happen, but it's just not a thing that should happen as it has in your case. Deck isn't warped, head isn't warped, very good. Only thing I can think of is that the head wasn't torqued correctly in the first place. It's hard to tell from the time lapse but it didn't look to me that you were swinging on that torque wrench as I would expect, it's possible that its lost its calibration. It's also possible that the head bolts have been over torqued in the past and the threads are stretched, in which place they need to be replaced. It's unlikely, but possible there is a burr on any of the holes, either bolt, coolant or oil in the block or head. One usually chamfers them before installation just to make sure, but then some people don't. Check that torque again yeah, it's important, not just the sequence. People do that job in a muddy field with far less care than you have and are fine, it's that kind of engine. So something went very wrong the first time around and it's unclear what that was.
Thanks for sharing. What is the gauge thickness ?
Hi Philippe, do you mean to check clearance? I set it at 1/2000”
@@My911 Hi thx for your answer . Yes to Check clearance . Is it equal to 0.13 mm?
Hi. 1/2000” (two thousandths of an inch) is the same as 0.05mm. This seems to be acceptable warpage on an iron head. Hope this helps. Regards Joël
@@My911 thank you Joël. It helps a lot .