560SL - Lapping Valves and Vacuum Test

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Күн бұрын

This R107 Video: Lapping Valves and Vacuum Test
I am documenting every part of this vehicle as I put it back together. The idea is to end up with the best documented 560SL rebuilds on the Internet.
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Links to the manual and links to all tools used in this video are below.
In this video I start off by comparing genuine Mercedes-Benz intake valves to new TRW intake valves. I purchased these TRW valves from FCPEuro:
www.fcpeuro.com/products/merc...
After comparing the valves I then wanted to establish a baseline for the vacuum test of the valves and valve seats. To do that I used my DIY valve vacuum testing tool and first tested the old valve seat and then compared that to a new valve.
After establishing a valve seat vacuum test baseline I then lap the valves. In this video I compare Permatex's valve grinding compound, the Chemico Grinding Paste and the Goodson's 400 grit valve lapping compound.
After lapping all the valves I then re-test them using my DIY valve vacuum testing tool and share the results.
I want everyone who visits my channel to know about a friend of mine name Tasos @TasosMoschatos His videos inspire me to be more like him. The man is amazing I feel. There is NO way I would be this far without his help. You can find his KZfaq channel at:
/ tasosmoschatos
My videos are not sponsored by anyone. The products and tools I use are products and tools I have purchased with my own money. I include links below to any special tools or products used in this video.
See my DIY Valve Seat Vacuum Tester video for information and links for that tool here:
• DIY Valve Seat Vacuum ...
These are the necessary plugs and tubing needed to vacuum test your valve seats without installing your seals or springs. I bought the 40 Pc 1/16" to 3/4" High Temp Silicone Rubber Tapered Plug Kit. I like it:
amzn.to/3cQz3y3
You then need this tubing for the valves. Latex Rubber Tubing Tube 5/16" (8mm) ID x 1/2" (12mm) OD:
amzn.to/3OKEID5
If you are going to measure you valves you will need a good micrometer that has .0001 graduation. I purchased the RUITOOL outside micrometer set with a 0-4inch Range and a 0.0001" graduation. It has a ratchet stop and carbide heads. It seems to work very well.
amzn.to/3FZn37L
I also used a caliper. I own the Kynup Digital Caliper Tool:
amzn.to/3NZp32J
I recently purchased the Fuzion digital scale with 6 units conversion. It is very inexpensive and seems to produced consistent measurements:
amzn.to/39Mu6Ff
To measure the angle of the valve I used the General Tools Stainless Steel Angle Protractor #17:
amzn.to/3d3uZKN
I used the DYKEM Layout Fluid to mark everything before I started lapping:
amzn.to/3s6qG69
You need a lapping stick to lap your valves. I purchased the Performance Tool W86552 2-Piece Valve Lapper Set:
amzn.to/3bB9joX
The two recommended lapping compounds that I would recommend are one, the Chemico Grinding Paste:
amzn.to/3JxjdV0
The valve lapping paste I ended up using in this video was the Goodson 400 Grit Lapping Compound. I feel it worked great:
amzn.to/3bu566B
This video is very detailed and is intended for the absolute beginner (ME). This is how I did things. If you see a problem, let me and the world know by leaving a comment.
Disclosure: I have never pulled an engine before and I have never rebuilt one either. This video series is documenting an inexperienced old guy tore apart his 1987 560SL.
Here are the main topics for the content I will be covering in this video:
Chapter Links:
00:00 Introduction
07:43 Unboxing The New Valves
08:40 Comparing TRW Intake Vales to Genuine Mercedes
16:06 Vacuum Leak Down Test - Old Intake Valve
18:42 Vacuum Leak Down Test Before Lapping - New Intake Valves
25:27 Leak Down Test Results - Before Lapping
28:25 Comparing Valve Lapping Compounds
39:40 Lapping A New Intake Valve
53:27 Lapping An Old Exhaust Valve
56:57 Inspecting Valve Seats After Lapping
59:04 Vacuum Test Valve Seats
Here is a link to the on-line manual that I am somewhat following:
www.startekinfo.com/service/d...
I will be doing a Facebook Live (or KZfaq live) when I start this car for the very first time since 2008. Make sure you get notified when I publish a new video so you don't miss this special event.

Пікірлер: 13

@richthekid1872 Жыл бұрын

I own an 84 500sel and you've constantly been an inspiration to me .I'm always looking forward to your new videos . It has helped me with my m117 engine significantly . Keep making history and documenting this !

@TonyLiveTV Жыл бұрын

Thank you Richie. I’m so happy I decided to post this journey on KZfaq. I probably would have quit already if it wasn’t for people like yourself. I can’t wait for this to all come together.

@ionutboruga6015 Жыл бұрын

keep going Tony

@markmakoy7227 Ай бұрын

#valvelapping like a pro #valveleakdownstandard

@MrEspokeY Жыл бұрын

Always professional

@Saarflieger Жыл бұрын

It´s really a professional work, all your steps to a overhauled engine!!! In my 87 560SL I have to do the same works because my cylinder head gasket has a leakage. The best is to remove the whole engine. I think, a new wiring harness in the engine room could solve some problems in the future. Here in Germany you don´t find a good workshop for vintage mercedes. Some good workshops have a lot of customer and you wait months and months. Also the delivery time of parts will be a problem. I wish you a good progress and a sucessful start of your "new" engine Martin

@heiseye9941 Жыл бұрын

I have a 69 Mercedes 230 the shop I had look over it said I have leaky valves at #6 do you know where I could order them?

@TonyLiveTV Жыл бұрын

A link to FCPEuro is in the description, but they are currently out of stock. Here’s a link for the TRW 1300530101 intake valve for the 230 amzn.to/3c403Ka if you need exhaust valves see eBay.

@dawsonjorgensen3521 Жыл бұрын

I've heard of people using torque plates when machining seats, as they say leakage could change when heads are torqued down so it resembles a bolted up head for best seal, now I wonder if you were to use this same setup but with heads bolted down with a torqueplate, lap them and put a vacuum on them, might even get that last but of performance but who knows maybe there wouldn't be much of a difference if any.

@TonyLiveTV Жыл бұрын

If you’re cutting new seats then I would leave that up to a good machinist if you can find one. My seats & guides measured like new and they tested good before lapping so no machining was necessary. These days many builders won’t lap the valves because machining is much more precise than in days past and lapping takes too much time for a shop to make money. That said, I would still do a light lapping with a fine compound just to smooth out any imperfections. I’m only cleaning things up and lapping for a visual reference. If you really want to cut the valves & seats right I would think you would need to heat the head up to operating temperature and then cut the valves & seats. If your valves & seats are well cut, lapping with a fine paste will only make it better in my opinion.

@dawsonjorgensen3521 Жыл бұрын

@@TonyLiveTV cool, thanks for the tip, I'm new to this and learning as I go, I bought a Chevy SUV with a 5.7 vortec, only 65000 km on rebuilt motor, found out my lack of power and rough idle was from valves bieng preloaded way to much letting the valves hang open, I set them back for best performance, unfortunately it got worse and thought maybe I burned a valve, but a disassembly shows that none of the valves are burnt but some pitting and a dark look to the exhaust valve faces, guides feel new, I also did a water test and both heads had some exhaust valves leaking as well as a few intake valves, I started lapping them with a drill but maybe that wasn't a good idea, now I'm wondering if I should get the seats cut and valves re grinded, then do some.light lapping, either way I will pickup some machinest blue layout fluid and check to see if I really need them recut or not, thanks for the helpful video really pointed me in the right direction I've been struggling stressed out trying to figure this out.

@TonyLiveTV Жыл бұрын

@@dawsonjorgensen3521 have you seen my video on measuring valves & valve stems? kzfaq.info/get/bejne/q9ZmfNukyrbafJ8.html

@dawsonjorgensen3521 Жыл бұрын

@@TonyLiveTV I haven't but I will check it out