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Fuel Pump "Insulator"


Chris_B

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I have had my mechanical fuel pump on and off a lot lately, and have had a great deal of trouble trying to seal the insulator that fits between the head and the pump. I was going to replace the gaskets, but it appears as if you can only get them as part of the insulator that goes between the head and the pump. I finally popped for a new insulator (thanks, Blunt!), and the damned old thing still leaks.

I thought that with the new gaskets, I would not have to use any gasket sealer. I guess I thought wrong, because I am still getting a fairly copious amount of oil seeping out from between the insulator and the head. I cleaned the mating surface on the head quite well before putting the new insulator in. Has anyone had a similar experience, and if so, what did you do to seal the leak? BTW, I tried various gasket sealers on the old gasket with some success, but finally destroyed the gasket during install/re-install.

Chris B.

'73 ex-Malaga

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The mechanical fuel pump mounting flangr gaskets are available under VW part #113127311.

The mounting flange of your fuel pump is warped from age and over tightening. I have sealed them up using a few different solutions...

double up the gasket... and or... I like to use Loctite 518 red flange sealant...

http://store.summitracing.com/partdetail.asp?part=lct-37394

HTH

post-786-13667595076926_thumb.jpg

Tom Jones

BMW mechanic for over 25 years, BMWCCA since 1984
66 BMW16oo stored, 67 1600-2 lifelong project, 2 more 67-8 1600s, 86 528e 5sp 585k, 91 318i
Mom&Dad's, 65 1800TiSA, 70 2800, 72 2002Tii 2760007 orig owners, 15 Z4 N20

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..... and I'll bet your missing the nylon stud centering

bushings with washer flange !

Without the nylon mounting bushings inserted into the 2 pump mounting

holes, and using a flat washers under new ny-loc nuts - the pump will

always work loose and leak.

.....see them under my . , ,,, , well they were my nuts !

Look in your Parts Book again.

MY02motoroverheadc.jpg

'86 R65 650cc #6128390 22,000m
'64 R27 250cc #383851 18,000m
'11 FORD Transit #T058971 28,000m "Truckette"
'13 500 ABARTH #DT600282 6,666m "TAZIO"

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