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Engine rebuild with no former experience........

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5 years 5 months ago #273777 by terrier
Hi Jim,
Golf Wheels protect to Hub with a little help of Silikone lube in the wheel center hole.
The hoses also needs protect with high Temperature Grease.
Your SL need new wipers, but in stainless Steel .

Gruß Ralf

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5 years 5 months ago #273778 by Racediagnostics
Hi Ralph,

Lots more than just the wipers on the wish list. I would like to replace the trim round the windscreen, door tops and trim on the soft top cover. It is all a bit scratched. But before all of that I need a new soft top.

Cheers
Jim

1979 450SL - 2008 911 Turbo
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5 years 5 months ago #274020 by Racediagnostics
Guys, the rebuilt engine is running much cooler than before, the needle used to sit halfway between the 175F (79.5 degC) and the next graticule when driving and when idling would go up to the next garticule (with no legend).

Now it is sitting just over 175F (79.5 degC) and after I let it sit at idle for a while earlier today it max'ed out here.



Is this normal? I just checked on the thermostat opening temp spec which is 75degC or 167 F so would seem reasonable.

Maybe its due to the new water paump and perfectly clean block?

The top of the radiator was at ~86 degC after idling for a while.


Cheers
Jim

1979 450SL - 2008 911 Turbo
The following user(s) said Thank You: KalliSL

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5 years 5 months ago #274021 by Dr-DJet
Hi Jim,

that seems okay. My 450 SL seems fixed at slightly above 80°C and hardly ever moves after engine has warmed up.

Viele Schraubergrüße - best regards, Volker, Admin und Betreiber
Fast alles zu Zündung und Jetronic auf jetronic.org


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5 years 5 months ago #274027 by markus1971
Hello Jim,

congratulations for your restauration report in the classic car magazine !! That is a nice recognition for your great performance !
I like the do-it-yourself reports in this magazine, they are much more profound than the ones in german magazines. I have a summary of paint reports that have appeared in this magazine, you can buy them as an anthology...

best regards

Markus
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5 years 5 months ago - 5 years 5 months ago #274217 by Racediagnostics
A few final jobs today.

I cut up some heat shrink tubing.



Then used it on the air filter box clips to prevent the newly painted lid from being damaged.





Then replaced the old spark plug wire clips, the new part 9top) is not identcal but works.



Last I got my CO value tested and corrected. Ignore RPM and oil temp as they were not measured.

Before, a bit low, the target is between 0.5 and 1.5%.



After.


Cheers
Jim

1979 450SL - 2008 911 Turbo
Last edit: 5 years 5 months ago by Racediagnostics.

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5 years 5 months ago #274230 by T-Modell
Jim,
with all due respect, listen very carefully I shall say this only once: those condoms for the air filter clips are far too much Hyacinth ;-) ... I guess you know what I mean. Everything's so nice ... I have mine yellow galvanised.

Regards
Thomas
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5 years 4 months ago #274453 by Racediagnostics
Today I investigated an old sound that I had hoped would be fixed with the engine rebuild.



During the rebuild I discovered I had purchased the wrong exhaust sealing rings (on the right) so reused the old ones when I re-attached the exhaust.

Here are the correct ones on the left.



I think the sound is coming from the exhaust to maifold connection.



When I removed the collar I could see that there was an exhaust gas leak.



And signs of it on one of the bolts.



So I dropped both sides of the exhaust and fitted the new sealing rings but on the right side also put a bead of high temperature sealant. The temp of the manifold is probably higher than the spec for thr silicon but I hope that its charred remains will help to improve the seal.

Cleaned up so that the silicon sealant would stick well.



All bolted back together.



I'll let the silicon set overnight and listen again tomorrow morning.

 

Cheers
Jim

1979 450SL - 2008 911 Turbo
The following user(s) said Thank You: KalliSL

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5 years 4 months ago #274484 by Racediagnostics
Great result this morning, the chirp has gone!

Cheers
Jim

1979 450SL - 2008 911 Turbo

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