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Thread: slow cranking...tight engine..?

  1. #21
    Senior Member
    Join Date
    Aug 2013
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    Near Eastbourne
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    425
    Quote Originally Posted by wizrod View Post
    So now that the engine is out, I have the opportunity to spruce up the engine bay.

    Does anyone have any advice on removing 30+ years of oil, & road dirt from GRP...? I'm think repeated doses of Gunk/Jizer, elbow grease & and stiff brush & a high pressure jet wash...?

    Ideally, I'd like get to the stage where I can paint the engine bay. Oil & dirt on top of GRP on black gel-coat makes for a dark & murky place, so I was thinking of a coat of silver to brighten things up a bit and to give it a bit more of a serviceable appearance. I know it's going to get mucky again... but its the thought that counts!

    I think I may even bite the bullet & relocate the roof pump to the front & relocate the external oil cooler to take advantage of one of the air scoops in the front under-tray.

    P.
    If the engine's out, protect your electricals and start with a hot jet wash or steam clean, then assess whats left

  2. #22
    Quote Originally Posted by wizrod View Post
    So now that the engine is out, I have the opportunity to spruce up the engine bay.

    Does anyone have any advice on removing 30+ years of oil, & road dirt from GRP...? I'm think repeated doses of Gunk/Jizer, elbow grease & and stiff brush & a high pressure jet wash...?

    P.
    I have always had good results with Gunk. Does work better when warm though. Degreasing beetle engines I run them and then when warm brush on gunk and rinse off.

    If you have a garden pressure sprayer (the pump up type some people use for wallpaper stripping etc) load it up with warm water and spray around over gunk and brush around.
    All the best,

    Jim

    Club Nova Member, SDBC Member, GRRC Member, Southern Classics



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  3. #23
    Senior Member wizrod's Avatar
    Join Date
    Jul 2007
    Location
    Rickmansworth, Hertfordshire
    Posts
    135
    I agree about Gunk.. it worked wonders on the heads, case & tinware.

    I was just concerned that given that GRP is porous, the muck in the engine bay will be well & truly ingrained, so I though it might need some extra 'encouragement'.

    I'll certainly give the hot-soapy water thing a try

    I don't have access to a specifically hot water kit wash, but I have a simple cold water one that seemed to work well on the motor parts.

    I wonder if some form if stain-blocking undercoat might work...?
    cheers

    Paul

  4. #24
    Senior Member wizrod's Avatar
    Join Date
    Jul 2007
    Location
    Rickmansworth, Hertfordshire
    Posts
    135
    Well, a rather soggy evening spent with a squirt can of Gunk and a jet wash has proved rather successful. the engine is no where near 'clean' - there is still an oily film over most surfaces, but it is definitely a significant improvement! The next process, I think, will be the application of large amounts of elbow grease through the medium of a scrubbing brush & lots of hot soapy water.

    This is all very cathartic. With the engine out, I now have the opportunity to fix a bunch of niggly little problems that have been too much bother to actually do until now.

    P.
    cheers

    Paul

  5. #25
    Quote Originally Posted by Spacenut View Post
    Was the engine any easier to turn by hand with the engine out of the car? I was just wondering if the gearbox input shaft might be bent?

    Lauren
    If the clutch plate was bolted in place slightly off centre could this have the same effect. Just a thought?
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